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Mission Peak Regional Preserve Weather

Park • San Francisco Bay Area

Mission Peak is the bare summit on the ridge that rises steeply behind Fremont. Together with Monument Peak, it forms the backdrop of the South Bay. The East Bay Regional Park District manages it within Mission Peak Regional Preserve, and the climb starts from either Ohlone College or the steeper Stanford Avenue trailhead. From the top, the district lists views of Mount Hamilton, the Santa Cruz Mountains, Mount Tamalpais, Mount Diablo, and the Sierra Nevada. Feral goats roam the cliffs, and sailplanes ride the wind overhead.

47°
😐
Comfort Score
62(C)
Good
Colder than usual · typical high 59°
Weather updated November 15, 2026 at 4:00 AM PST

Plan your week

10-Day Forecast

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  1. Today
    Nov 15
    53°43°
    Comfort
    40
    84%
    Rain 0.35 in
  2. Mon
    Nov 16
    45°39°
    Comfort
    33
    94%
    Rain 0.62 in
  3. Best day
    Tue
    Nov 17
    52°38°
    Comfort
    70
    32%
    Rain 0.03 in
  4. Wed
    Nov 18
    48°43°
    Comfort
    30
    96%
    Rain 2.5 in
  5. Thu
    Nov 19
    48°45°
    Comfort
    34
    91%
    Rain 0.58 in
  6. Fri
    Nov 20
    53°42°
    Comfort
    65
    28%
    Rain 0.21 in
  7. Sat
    Nov 21
    52°41°
    Comfort
    66
    19%
    Precip 0 in
  8. Sun
    Nov 22
    51°42°
    Comfort
    63
    25%
    Rain 0 in
  9. Mon
    Nov 23
    58°43°
    Comfort
    69
    25%
    Rain 0 in
  10. Tue
    Nov 24
    57°48°
    Comfort
    58
    53%
    Rain 0.06 in
See hiking scores for every trail this week →

Hour by hour

Hourly Forecast

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  1. Today
    Now
    47°
    Comfort
    62
    1%
    0 in
  2. Today
    5 AM
    46°
    Comfort
    58
    1%
    0 in
  3. Today
    6 AM
    46°
    Comfort
    57
    1%
    0 in
  4. Sunrise6:47 AM
  5. Today
    7 AM
    47°
    Comfort
    59
    1%
    0 in
  6. Today
    8 AM
    48°
    Comfort
    59
    1%
    0 in
  7. Today
    9 AM
    49°
    Comfort
    62
    1%
    0 in
  8. Today
    10 AM
    50°
    Comfort
    64
    1%
    0 in
  9. Today
    11 AM
    51°
    Comfort
    69
    1%
    0 in
  10. Today
    12 PM
    51°
    Comfort
    72
    2%
    0 in
  11. Today
    1 PM
    52°
    Comfort
    68
    2%
    0 in
  12. Today
    2 PM
    53°
    Comfort
    73
    4%
    0 in
  13. Today
    3 PM
    52°
    Comfort
    69
    7%
    0 in
  14. Today
    4 PM
    51°
    Comfort
    50
    13%
    0.02 in
  15. Sunset4:56 PM
  16. Today
    5 PM
    47°
    Comfort
    20
    45%
    0.20 in
  17. Today
    6 PM
    46°
    Comfort
    43
    51%
    0.03 in
  18. Today
    7 PM
    45°
    Comfort
    47
    52%
    0.01 in

Current Conditions

Temperature
47°F
Feels like 40°F
Humidity
81%
Dew point 42°F
Wind
9 mph
NW • Gusts 13 mph
Cloud Cover
100%
Mid-level clouds
Precip Chance
1%

Comfort Breakdown

Less comfortableMore comfortable
Thermal47
Wind95
Moisture100
Precipitation100

Mission Peak Regional Preserve weather today and through the year

It's 47°F at Mission Peak Regional Preserve right now (feels like 40°F), with 9 mph wind and a comfort score of 62. Today's forecast high at Mission Peak Regional Preserve is 53°F, 11°F below the mid November normal of 64°F. The best window today is 10 AM to 1 PM, at about 45°F with a 9 mph wind (comfort 45).

August is the warmest month at Mission Peak Regional Preserve, with an average high of 84°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.8 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Mission Peak Regional Preserve are August, September, and June. The best hours are usually 10 AM to 1 PM in August, 10 AM to 1 PM in September, and 11 AM to 2 PM in June.

At roughly 2,500 feet, the summit of Mission Peak usually sits above the summer marine layer, the cool, moist air the ocean feeds ashore. On mornings when low clouds have pushed down the bay, hikers can start in gray at the trailhead and climb into sun. From the top they look down on a deck of cloud over Fremont and the bay.

Forecast updated November 15, 2026 at 4:00 AM PST. Climate figures come from NOAA 1991-2020 normals. Hourly patterns come from NOAA's HRRR hourly analysis from September 2014 to April 2026.

What to expect at Mission Peak Regional Preserve in the next few days

No active National Weather Service alerts for this location.

Best time to go

The best window today is 10 AM to 1 PM, at about 45°F with a 9 mph wind (comfort 45).

Hiking conditions

Best hiking day this week: Friday, with 6 daylight hours that are dry, 45 to 80°F, and under 18 mph wind. 1 of the next 7 days have at least 4 such hours.

Best day this week

Of the next 7 days, Friday looks best for Mission Peak Regional Preserve, with a 53°F high and midday comfort near 64. Thursday looks weakest (40).

Better weather nearby

It's 47°F with a comfort score of 62 at Mission Peak Regional Preserve right now. Fremont, 6 miles away, is 54°F with a comfort score of 79. See that forecast

Rain

Next good chance of rain: today (84%, about 0.35 in.).

Live weather map

Weather around Mission Peak Regional Preserve right now

Overcast and 47° at Mission Peak Regional Preserve right now. Fremont, 6 mi away, is 54° and more comfortable.

Live weather map
About the live weather map for Mission Peak Regional Preserve

The map centers on Mission Peak Regional Preserve and stacks fog, satellite clouds, and precipitation radar on one view. Clouds come from the GOES-West satellite and rain from NOAA radar, and both show current conditions. Fog comes from our HRRR-based fog model, and the slider steps through its forecast for the next 12 hours.

Dots mark nearby places with their current temperature, colored by comfort score. Use the layer buttons to turn any layer off, or open the full map for every destination in the region.

Nearby Temperature Comparison

Conditions at nearby San Francisco Bay Area destinations

Tip: Bay Area temperatures can change by 20 to 30°F over a short distance because of microclimates.

Mission Peak Regional Preserve vs nearby places

Typical summer conditions compared with Mission Peak Regional Preserve, from the same NOAA HRRR hourly record. The list shows the closest places, then nearby places whose climate differs the most.

Summer climate at places near Mission Peak Regional Preserve
PlaceDistanceSummer afternoonsMorning fogAfternoon windCompared with Mission Peak Regional Preserve
Sunol Regional Wilderness2.8 mi+5°F10%10 mph1,944 ft lower and about 5°F warmer on summer afternoons
Milpitas5.7 mi+3°F16%10 mph2,491 ft lower and about 31% less rain a year
Fremont6.4 mi+1°F17%9 mph2,458 ft lower
Don Edwards Wildlife Refuge10.1 mi-14°F18%16 mphabout 14°F cooler on summer afternoons and 2,514 ft lower
Coyote Hills Regional Park11.8 mi-14°F21%14 mphabout 14°F cooler on summer afternoons and 2,512 ft lower
Foster City21.6 mi-13°F14%12 mphabout 13°F cooler on summer afternoons and 2,507 ft lower

Places with a climate like Mission Peak Regional Preserve's

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
53°Fforecast
11° below normal
Normal: 64°F
Rainfall Year-to-Date
10.3"
34% below average
30-yr avg: 15.7"
Sunny Days
20last 28 days
4 fewer than baseline
Typical: 24
Foggy Days
1last 28 days
vs 6 typical
Clearer than usual
Avg Wind Speed
7.3 mphlast 28 days
1.7 mph windier than baseline
Typical: 5.6 mph
Comfort Score
8728-day avg
On par with typical
Recent baseline: 87
What the Mission Peak Regional Preserve climate comparisons mean

These cards compare recent conditions at Mission Peak Regional Preserve with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available. Fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.

Positive and negative differences describe how Mission Peak Regional Preserve departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.

Mission Peak Regional Preserve weather by month

August is the warmest month at Mission Peak Regional Preserve, with an average high of 84°F. December is the coldest, with an average low of 40°F. December is the wettest month (4.0 in.), out of about 20.8 in. a year. Morning fog peaks in August, when fog or low cloud covers 25% of the hours from 6 to 10 AM. July has the clearest middays, with clouds covering about 3% of the sky from 11 AM to 3 PM.

By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Mission Peak Regional Preserve are August, September, and June. The best hours are usually 10 AM to 1 PM in August, 10 AM to 1 PM in September, and 11 AM to 2 PM in June.

Typical monthly weather at Mission Peak Regional Preserve. Highs, lows, and precipitation: NOAA 1991-2020 normals. Fog, cloud, and wind: NOAA's HRRR hourly analysis from September 2014 to April 2026. Comfort is the average daytime score from the Mission Peak Regional Preserve hourly climatology.
MonthAvg highAvg lowRainRainy daysMorning fogMidday cloudAfternoon windDaylightComfort
Jan57°F40°F3.8 in813%29%8 mph9.9 h50
Feb60°F42°F3.8 in810%25%10 mph10.8 h55
Mar64°F44°F3.4 in813%30%10 mph11.9 h58
Apr67°F46°F1.6 in515%22%10 mph13.2 h69
May73°F50°F0.7 in321%16%11 mph14.2 h74
Jun79°F54°F0.1 in215%6%11 mph14.7 h91
Jul84°F58°F0.0 in022%3%10 mph14.5 h91
Aug84°F59°F0.0 in125%4%9 mph13.6 h93
Sep82°F57°F0.1 in220%9%9 mph12.3 h93
Oct75°F52°F1.0 in414%12%9 mph11.1 h85
Nov64°F45°F2.2 in69%20%8 mph10.1 h65
Dec57°F40°F4.0 in815%30%8 mph9.6 h48

Morning fog is the share of hours from 6 to 10 AM with fog or low cloud. Midday cloud is the average from 11 AM to 3 PM, and afternoon wind is the average from 1 to 5 PM. The highlighted rows are the most comfortable months.

In summer, recent daily NOAA readings at Mission Peak Regional Preserve average about 11°F cooler than the 1991-2020 normals. The normals average over a wider area that also covers nearby terrain. Read the monthly highs as a rough range, and use the recent months below for what Mission Peak Regional Preserve has actually seen.

What makes Mission Peak Regional Preserve's weather different

When the fog burns off

10 AMwhen August fog usually thins (32% foggy at 8 AM)

Fog or low cloud covers Mission Peak Regional Preserve in 32% of 8 AM hours in August, the foggiest month. It usually thins to a third of that by 10 AM. November mornings are the least foggy (9%).

When the wind picks up

2 PMwhen afternoon wind builds, April–September

From April through September, wind at Mission Peak Regional Preserve typically builds after 2 PM. In May it peaks around 5 PM, averaging 12 mph with 14% of those hours windy, while mornings average 7 mph.

Elevation

+5°Fsummer afternoons at Sunol Regional Wilderness, 1,944 ft down

Sunol Regional Wilderness sits 1,944 ft lower, 2.8 miles away. Its summer highs average 5°F warmer than Mission Peak Regional Preserve.

Daylight

9.6–14.7 hof daylight, Dec to Jun

Days at Mission Peak Regional Preserve range from about 9.6 hours in December to 14.7 hours in June. In mid-June the sun sets around 8:29 PM, and in mid-December around 4:56 PM.

Seasons at Mission Peak Regional Preserve

  • Warm seasonJun 29 – Sep 25 · highs 81°F+

    The warm season lasts about 2.9 months, from Jun 29 to Sep 25, when the average high is 81°F or warmer. Highs peak around Aug 8 at about 84°F.

  • Cool seasonNov 30 – Feb 26 · highs 61°F or lower

    The cool season runs from Nov 30 to Feb 26, when the average high is 61°F or lower. The coldest nights come around Dec 8, with an average low near 40°F.

  • Rainy seasonNov 13 – Apr 7 · 80% of the year's rain

    The rainy season runs from Nov 13 to Apr 7, when a day has at least a 20% chance of measurable rain. That stretch brings 80% of the year's rain.

The dark line marks today. Season dates come from the smoothed daily NOAA 1991-2020 normals. Counting from Oct. 1, a typical year has its first inch of rain by Nov 1 and half of its annual total by Jan 26.

Days per year and extremes (Nov 1, 2024 to Oct 31, 2026)

This record runs from Nov 1, 2024 to Oct 31, 2026. Over this record, Mission Peak Regional Preserve averaged 1 day a year at 90°F or hotter and no freezing nights. It averaged 11 days a year with at least half an inch of rain and 4 afternoons with wind of 20 mph or more at 2 PM. About 78 mornings a year had 3 or more hours of fog or low cloud.

In the same record, the hottest day was Oct 4, 2026 (90°F) and the coldest night was Jan 26, 2025 (33°F). The wettest day was Oct 14, 2025 (1.96 in.), and the strongest 2 PM gust was 47 mph on Feb 4, 2025.

  • 1day at 90°F or hotter
  • 0nights at or below freezing
  • 11days with ½ in. of rain or more
  • 4afternoons with 20+ mph wind
  • 78mornings with 3+ hours of fog or low cloud
  • Hottest day90°FOct 4, 2026
  • Coldest night33°FJan 26, 2025
  • Wettest day1.96 inOct 14, 2025
  • Strongest 2 PM gust47 mphFeb 4, 2025

What shapes Mission Peak Regional Preserve's weather

Mission Peak's west face takes the full afternoon breeze off the bay. Air pushed against the ridge rises up the slope, and that lift is what brings sailplanes and model gliders here. The top is often windy and cooler than the trailhead even on hot days. On calm summer nights the pattern can flip. An inversion, a layer of warm air resting on cool air near the ground, can leave the summit milder than the city below.

The climb up Mission Peak is hotter than the summit. The slopes face west into full afternoon sun, and much of the route crosses open grassland. The Fremont flats heat quickly once any morning cloud burns off. A summer afternoon on the trail is far harsher than the breezy summit suggests.

Winter storms hit the ridge harder than the city, with stronger wind and colder rain. Cold air after a storm can bring near-freezing nights to the top. The clear, scrubbed air between storms gives the longest views of the year, east to the Sierra.

Tips for visiting Mission Peak Regional Preserve

  • Start early in summer

    The park district advises against hiking at midday in summer and asks for at least 2 liters of water per person, plus 2 liters per dog.

  • Leave dogs home on hot days

    The district warns that dogs are much more susceptible to heat stroke than people, and says to hike with them only in cooler temperatures.

  • Pick your trailhead by steepness

    Ohlone College offers a gentler, longer climb. Stanford Avenue is steeper, and its lot is heavily used on weekends and holidays.

  • Ride BART to Warm Springs

    The district suggests BART to Warm Springs and then a roughly 15-minute rideshare to the trailhead.

  • Wear shoes with ankle support

    Wear hiking boots or athletic shoes with thick socks. The district says no flip-flops, sandals, or heels.

  • Park at Warm Springs BART

    Warm Springs/South Fremont BART has daily parking and bike lockers, and AC Transit buses serve the station.

Mission Peak Regional Preserve through the seasons

Spring (March–May)
Spring is the greenest season for the climb, and mornings are mild. The summit wind can still be cold, so carry a layer.
Summer (June–August)
The exposed slopes get hot by late morning, and the district advises against midday hikes. Start at first light, when the summit may sit above the morning cloud.
Fall (September–November)
Heat spells continue into October, but offshore wind days bring dry, clear air and long views. The grass is at its driest, so fire caution matters.
Winter (December–February)
Winter storms make the top cold and windy and the trails muddy. The clear days after rain bring the best views of the year.

Activities and the weather that matters

  • Summit hike: Go on cool, clear mornings in spring, fall, and winter. Summer middays are risky on the shadeless upper slopes.
  • Sunrise and sunset views: Clear days after a storm or during offshore wind give the longest views. Plan around posted entrance hours, which are strictly enforced.
  • Radio-controlled gliding: A steady west wind blowing up the face creates ridge lift, the rising air that keeps gliders aloft. Launching is allowed only from R/C Hill, by South Bay Soaring Society members.
  • Backpacking at Eagle Spring: Mild spring and fall nights suit it best. Reserve two or more business days ahead and treat or boil the water.

Official sources and current conditions

Numbers on this page come from NOAA data. The text draws on the official sources linked above.

Historical Climate Data

Long-term weather patterns and climate data

Data sources: Recent temperatures come from NOAA URMA and recent precipitation from NOAA Stage IV. Fog, cloud, wind, humidity, and sunshine come from NOAA HRRR, and long-term baselines from NOAA 1991-2020 climate normals.

Climate Overview

Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline

85
Avg Comfort
70.5°
Avg High
48.9°
Avg Low
74%
Perfect Days
☀️ Avg Sunshine10.7h/day
🌫️ Avg Fog1.5h/day
💧 Avg Annual Rain20.8"
🌧️ Rainy Days/yr55 (15%)
🌫️ Foggy Days/yr74
✨ Perfect Days (80+)539

🌟 Best Months to Visit

1. July86
83.7° / 58.1° · ☀️ 13.8h
4 foggy days · 0 rainy days
2. June85
79.4° / 54.1° · ☀️ 13.6h
5 foggy days · 2 rainy days
3. May80
72.9° / 49.8° · ☀️ 12.9h
6 foggy days · 3 rainy days

⚠️ Challenging Months

1. December41
56.7° / 40.3° · ☀️ 7.2h
💧 4" · 8 rainy days · 8 foggy days
2. January42
57.1° / 40.4° · ☀️ 7.4h
💧 3.8" · 8 rainy days · 8 foggy days
3. February48
59.6° / 42° · ☀️ 8.5h
💧 3.8" · 8 rainy days · 8 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
November 20247754.1° / 45.8°6.8h0d1.79"19
December 20247155° / 47.7°5.3h7d3.34"10
January 20257752.4° / 43.4°7.2h2d0.14"20
February 20257253° / 44.8°6.8h3d4.11"12
March 20257352.5° / 43.2°8.1h4d2.37"12
April 20258457.2° / 45.8°10h5d0.63"22
May 20259063.4° / 50°12.3h4d0.16"25
June 20259668.6° / 52.9°12.8h2d0"30
July 20259369.8° / 54.7°12.3h9d0"31
August 20259575° / 59.3°11.4h5d0.01"30
September 20259171.5° / 59.9°10h5d0.12"29
October 20258663.3° / 52.9°8h7d2.55"21
November 20257658° / 49.5°6.8h10d3.16"16
December 20257054.3° / 44.8°5.5h9d1.71"7
January 20267956° / 49.2°6.8h2d2.72"21
February 20267456° / 48.2°6.7h4d3.8"15
March 20269366.4° / 56.6°9.7h2d0"27
April 20268358.1° / 47.4°9.5h0d2.96"21
May 20268963.3° / 50.4°11.6h7d0.59"26
June 20269469.5° / 54°12.4h4d0"30
July 20269572.8° / 57.4°12h3d0"30
August 20269475.3° / 58.7°11.3h5d0"30
September 20269469.4° / 56.9°10.4h6d0.05"29
October 20268869.4° / 58.8°8.2h1d0.19"26
Last updated: 11/9/2026

Climate Trends

Average Temperature by Month

79°F69°F59°F50°F40°FNov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26Sep '26Oct '26
Average High
Average Low
About the Mission Peak Regional Preserve climate charts

The temperature chart compares average monthly highs and lows at Mission Peak Regional Preserve, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.

Precipitation shows the total recorded or modeled rainfall for each month at Mission Peak Regional Preserve. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.

Hourly Temperature, Fog, Wind, Cloud Cover, and Solar Radiation Patterns

Average local hour by month from 2014-09-30 to 2026-04-30

  • Temperature: At Mission Peak Regional Preserve, the warmest typical hour is 3 PM in August (78°F). The coldest is 7 AM in December (44°F).
  • Fog: Fog or low cloud covers Mission Peak Regional Preserve in 32% of 8 AM hours in August, the foggiest month. It usually thins to a third of that by 10 AM. November mornings are the least foggy (9%).
  • Wind: From April through September, wind at Mission Peak Regional Preserve typically builds after 2 PM. In May it peaks around 5 PM, averaging 12 mph with 14% of those hours windy, while mornings average 7 mph.
  • Cloud Cover: July middays are the clearest at Mission Peak Regional Preserve (3% average cloud cover), and March middays are the cloudiest (30%).
  • Solar Radiation: The strongest typical sun at Mission Peak Regional Preserve comes at 1 PM in July, averaging 1007 W/m².
How to read the hourly heatmaps for Mission Peak Regional Preserve

This heatmap shows how average temperature at Mission Peak Regional Preserve changes by hour and month. Read left to right for the seasons and top to bottom for the time of day. Warmer colors mark the usual afternoon peaks, and cooler colors show overnight and winter lows.

This heatmap shows when fog or low cloud is most likely at Mission Peak Regional Preserve. Darker cells mark the months and hours when fog has been most common. They help separate overnight or morning fog from cloud that tends to linger into the afternoon.

This heatmap shows the typical hourly wind pattern at Mission Peak Regional Preserve through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.

This heatmap shows average cloud cover at Mission Peak Regional Preserve for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.

This heatmap shows the average solar radiation reaching Mission Peak Regional Preserve by month and hour. Brighter cells indicate the strongest typical sun, while muted cells can reflect nighttime, shorter winter days, cloud cover, smoke, or terrain shading.

Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage. The red marker shows the current month and hour.

Loading interactive climate heatmaps…

How recent months compared at Mission Peak Regional Preserve

  • October 2026 recap: October 2026 at Mission Peak Regional Preserve averaged a high of 69°F, 6°F warmer than October 2025 (63°F).
  • Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 17.5 in. of rain to Mission Peak Regional Preserve, 84% of the 20.8 in. normal.

Location Details

📍
Coordinates
37.5130, -121.8811
⛰️
Elevation
2,517 ft
🏷️
Type
Park
🏷️
Tags
#sunny#warm#hiking#views#strenuous

Mission Peak Regional Preserve weather questions

Everything you need to know about weather and visiting Mission Peak Regional Preserve

What is the weather like at Mission Peak Regional Preserve today?

It's 47°F at Mission Peak Regional Preserve right now, with a comfort score of 62 (good). Today's forecast high at Mission Peak Regional Preserve is 53°F, 11°F below the mid November normal of 64°F. The best window today is 10 AM to 1 PM, at about 45°F with a 9 mph wind (comfort 45).

What is the best month to visit Mission Peak Regional Preserve?

By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Mission Peak Regional Preserve are August, September, and June. The best hours are usually 10 AM to 1 PM in August, 10 AM to 1 PM in September, and 11 AM to 2 PM in June. The warm season lasts about 2.9 months, from Jun 29 to Sep 25, when the average high is 81°F or warmer. Highs peak around Aug 8 at about 84°F.

What are the warmest and coldest months at Mission Peak Regional Preserve?

August is the warmest month at Mission Peak Regional Preserve, with an average high of 84°F. December is the coldest, with an average low of 40°F.

When does the fog burn off at Mission Peak Regional Preserve?

Fog or low cloud covers Mission Peak Regional Preserve in 32% of 8 AM hours in August, the foggiest month. It usually thins to a third of that by 10 AM. November mornings are the least foggy (9%).

When is it windiest at Mission Peak Regional Preserve?

From April through September, wind at Mission Peak Regional Preserve typically builds after 2 PM. In May it peaks around 5 PM, averaging 12 mph with 14% of those hours windy, while mornings average 7 mph.

How much rain does Mission Peak Regional Preserve get?

December is the wettest month (4.0 in.), out of about 20.8 in. a year. The rainy season runs from Nov 13 to Apr 7, when a day has at least a 20% chance of measurable rain. That stretch brings 80% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 17.5 in. of rain to Mission Peak Regional Preserve, 84% of the 20.8 in. normal.

How does Mission Peak Regional Preserve weather compare with Sunol Regional Wilderness?

Sunol Regional Wilderness sits 1,944 ft lower, 2.8 miles away. Its summer highs average 5°F warmer than Mission Peak Regional Preserve.

Can I hike Mission Peak in the dark?

You can hike only within posted hours. At the Ohlone College entrance, hours run from 6 a.m. to 10 p.m. daily. Part of the Stanford Avenue entrance opens at 6:30 a.m. and closes at 8 p.m. from late December through March, or 9 p.m. the rest of the year. The district says hours are strictly enforced with citations.

What kind of place is Mission Peak Regional Preserve?

Mission Peak is the bare summit on the ridge that rises steeply behind Fremont. Together with Monument Peak, it forms the backdrop of the South Bay. The East Bay Regional Park District manages it within Mission Peak Regional Preserve, and the climb starts from either Ohlone College or the steeper Stanford Avenue trailhead. From the top, the district lists views of Mount Hamilton, the Santa Cruz Mountains, Mount Tamalpais, Mount Diablo, and the Sierra Nevada. Feral goats roam the cliffs, and sailplanes ride the wind overhead.

What is Mission Peak Regional Preserve weather like in November?

November at Mission Peak Regional Preserve averages a high of 64°F and a low of 45°F, with 2.2 in. of rain over about 6 rainy days. Afternoon wind averages 8 mph.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Mission Peak Regional Preserve.

Data sources and methods

  • Monthly temperatures and precipitation: NOAA 1991-2020 normals.
  • Fog, cloud, wind, sun, and comfort by hour and month: NOAA's HRRR hourly analysis from September 2014 to April 2026.
  • Daily records and recent months: NOAA URMA and HRRR analyses, plus NOAA Stage IV precipitation.
  • Nearby comparisons and regional rankings use the same hourly HRRR summaries for every destination in the region.
  • Alerts: National Weather Service. Tides and ocean temperature: NOAA CO-OPS, where shown.
  • All statements on this page are computed from these datasets, apart from the “What shapes the weather” guide, which cites its sources inline.
  • East Bay Regional Park District, Mission Peak Regional Preserve (accessed 2026-10-27)
  • BART, Warm Springs/South Fremont Station (accessed 2026-10-27)

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