Monte Bello Open Space Preserve Weather

Park • San Francisco Bay Area

Ridge trails along San Andreas Fault

69°
😎
Comfort Score
97(A)
Perfect
Weather updated October 1, 2026 at 3:16 AM PDT

Monte Bello Open Space Preserve weather at a glance

Monte Bello Open Space Preserve is a park at 2,800 feet in San Francisco Bay Area. Ridge trails along San Andreas Fault. Notable features include above-fog, views, hiking, and geology.

Current conditions are 69°F, feeling like 65°F, with 31% humidity, winds near 2 mph, 0% cloud cover, and a 0% chance of precipitation. Mild with clear skies.

The location-specific climate baseline shows an average daily high of 67°F and an average low of 46°F, with about 0.0 hours of sunshine per day and 0.0 hours of morning fog per day. Expected annual precipitation is approximately 42.3 inches.

Plan your week

10-Day Forecast

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  1. Best day
    Today
    Oct 1
    83°67°
    Comfort
    90
    0%
    Precip 0 in
  2. Fri
    Oct 2
    85°63°
    Comfort
    79
    0%
    Precip 0 in
  3. Sat
    Oct 3
    92°59°
    Comfort
    65
    0%
    Precip 0 in
  4. Sun
    Oct 4
    90°62°
    Comfort
    70
    0%
    Precip 0 in
  5. Mon
    Oct 5
    90°60°
    Comfort
    68
    0%
    Precip 0 in
  6. Tue
    Oct 6
    92°61°
    Comfort
    65
    0%
    Precip 0 in
  7. Wed
    Oct 7
    93°60°
    Comfort
    63
    0%
    Precip 0 in
  8. Thu
    Oct 8
    84°53°
    Comfort
    86
    0%
    Precip 0 in
  9. Fri
    Oct 9
    79°46°
    Comfort
    81
    0%
    Precip 0 in
  10. Sat
    Oct 10
    83°45°
    Comfort
    84
    1%
    Precip 0 in

Hour by hour

Hourly Forecast

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  1. Today
    Now
    69°
    Comfort
    97
    0%
    0 in
  2. Today
    4 AM
    68°
    Comfort
    96
    0%
    0 in
  3. Today
    5 AM
    68°
    Comfort
    95
    0%
    0 in
  4. Today
    6 AM
    68°
    Comfort
    95
    0%
    0 in
  5. Today
    7 AM
    68°
    Comfort
    94
    0%
    0 in
  6. Sunrise7:04 AM
  7. Today
    8 AM
    70°
    Comfort
    95
    0%
    0 in
  8. Today
    9 AM
    74°
    Comfort
    99
    0%
    0 in
  9. Today
    10 AM
    78°
    Comfort
    99
    0%
    0 in
  10. Today
    11 AM
    81°
    Comfort
    99
    0%
    0 in
  11. Today
    12 PM
    82°
    Comfort
    96
    0%
    0 in
  12. Today
    1 PM
    83°
    Comfort
    91
    0%
    0 in
  13. Today
    2 PM
    83°
    Comfort
    89
    0%
    0 in
  14. Today
    3 PM
    82°
    Comfort
    90
    0%
    0 in
  15. Today
    4 PM
    81°
    Comfort
    95
    0%
    0 in
  16. Today
    5 PM
    80°
    Comfort
    96
    0%
    0 in
  17. Today
    6 PM
    77°
    Comfort
    97
    0%
    0 in
  18. Sunset6:51 PM
  19. Today
    7 PM
    72°
    Comfort
    100
    0%
    0 in
  20. Today
    8 PM
    69°
    Comfort
    94
    0%
    0 in
  21. Today
    9 PM
    68°
    Comfort
    91
    0%
    0 in
  22. Today
    10 PM
    67°
    Comfort
    90
    0%
    0 in
  23. Today
    11 PM
    67°
    Comfort
    89
    0%
    0 in
  24. Fri
    12 AM
    68°
    Comfort
    84
    0%
    0 in
  25. Fri
    1 AM
    67°
    Comfort
    89
    0%
    0 in
  26. Fri
    2 AM
    68°
    Comfort
    88
    0%
    0 in
  27. Fri
    3 AM
    69°
    Comfort
    92
    0%
    0 in
  28. Fri
    4 AM
    72°
    Comfort
    88
    0%
    0 in
  29. Fri
    5 AM
    67°
    Comfort
    89
    0%
    0 in
  30. Fri
    6 AM
    68°
    Comfort
    85
    0%
    0 in
  31. Fri
    7 AM
    67°
    Comfort
    84
    0%
    0 in
  32. Sunrise7:05 AM
  33. Fri
    8 AM
    69°
    Comfort
    86
    0%
    0 in
  34. Fri
    9 AM
    74°
    Comfort
    95
    0%
    0 in
  35. Fri
    10 AM
    80°
    Comfort
    96
    0%
    0 in
  36. Fri
    11 AM
    83°
    Comfort
    94
    0%
    0 in
  37. Fri
    12 PM
    85°
    Comfort
    94
    0%
    0 in
  38. Fri
    1 PM
    85°
    Comfort
    91
    0%
    0 in
  39. Fri
    2 PM
    82°
    Comfort
    95
    0%
    0 in
  40. Fri
    3 PM
    84°
    Comfort
    93
    0%
    0 in
  41. Fri
    4 PM
    84°
    Comfort
    96
    0%
    0 in
  42. Fri
    5 PM
    81°
    Comfort
    96
    0%
    0 in
  43. Fri
    6 PM
    78°
    Comfort
    96
    0%
    0 in
  44. Sunset6:50 PM
  45. Fri
    7 PM
    74°
    Comfort
    97
    0%
    0 in
  46. Fri
    8 PM
    72°
    Comfort
    94
    0%
    0 in
  47. Fri
    9 PM
    69°
    Comfort
    93
    0%
    0 in
  48. Fri
    10 PM
    66°
    Comfort
    90
    0%
    0 in
  49. Fri
    11 PM
    63°
    Comfort
    89
    0%
    0 in
  50. Sat
    12 AM
    59°
    Comfort
    87
    0%
    0 in
  51. Sat
    1 AM
    59°
    Comfort
    85
    0%
    0 in
  52. Sat
    2 AM
    59°
    Comfort
    85
    0%
    0 in

Current Conditions

Temperature
69°F
Feels like 65°F
Humidity
31%
Dew point 37°F
Wind
2 mph
NW • Gusts 3 mph
Cloud Cover
0%
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal94
Wind99
Stars Visible100
Moisture96
Precipitation100

Weather Maps

About the weather maps for Monte Bello Open Space Preserve

Each preview is centered on Monte Bello Open Space Preserve, with the red pin marking its approximate location. Satellite imagery provides cloud context, radar shows nearby precipitation, and the fog view shows the marine-layer or low-cloud field when that regional layer is available.

These images cover a wider area than the point forecast, so a nearby cloud or rain band may not be directly over Monte Bello Open Space Preserve. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

Nearby Temperature Comparison

Conditions at nearby San Francisco Bay Area destinations

Tip: Bay Area temps can vary 20-30°F within a short distance due to microclimates.

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
83°Fforecast
11° above normal
Normal: 72°F
Rainfall Year-to-Date
17.2"
35% below average
30-yr avg: 26.7"
Sunny Days
28last 28 days
1 more than baseline
Recent baseline: 27
Foggy Days
5last 28 days
vs 3 recent baseline
Foggier than usual
Avg Wind Speed
6.7 mphlast 28 days
Typical conditions
Recent baseline: 6.4 mph
Comfort Score
9328-day avg
On par with typical
Recent baseline: 94
What the Monte Bello Open Space Preserve climate comparisons mean

These cards compare recent conditions at Monte Bello Open Space 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 Monte Bello Open Space 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.

Historical Climate Data

Long-term weather patterns and climate data

Data sources: NOAA URMA for recent temperature history, NOAA Stage IV for recent precipitation, NOAA HRRR for fog, cloud, wind, humidity, and sunshine signals, and NOAA 1991-2020 climate normals for long-term baselines.

Climate Overview

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

82
Avg Comfort
66.8°
Avg High
45.6°
Avg Low
67%
Perfect Days
☀️ Avg Sunshine (recent)8.9h/day
🌫️ Avg Fog (recent)1.9h/day
💧 Avg Annual Rain42.3"
🌧️ Rainy Days/yr104 (28%)
🌫️ Foggy Days/yr (recent)91
✨ Perfect Days (80+)452

🌟 Best Months to Visit

1. June79
73.9° / 48.9° · ☀️ 12.5h
4 foggy days · 5 rainy days
2. August76
80° / 53.8° · ☀️ 11.3h
4 foggy days · 5 rainy days
3. July72
79.2° / 53.3° · ☀️ 12h
7 foggy days · 5 rainy days

⚠️ Challenging Months

1. December27
55.3° / 39.5° · ☀️ 5.3h
💧 9.3" · 14 rainy days · 10 foggy days
2. February34
56° / 40° · ☀️ 6.5h
💧 8.4" · 14 rainy days · 8 foggy days
3. January38
55.8° / 40.5° · ☀️ 6.6h
💧 9.3" · 14 rainy days · 6 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
October 20248554.4° / 44°9h0d0.01"2
November 20247453.9° / 45.6°6.4h6d3.93"13
December 20246855.7° / 47.8°5.2h12d7.04"13
January 20257652.8° / 42.9°6.9h6d0.18"17
February 20256853.3° / 44°6.3h9d10.81"12
March 20256552.5° / 42.9°7.1h16d4.21"10
April 20257857.6° / 47.1°9.1h10d0.8"18
May 20258664.5° / 50.1°11.3h10d0.24"22
June 20259670.4° / 57°12.9h2d0"29
July 20259271.4° / 56.5°12.2h8d0"29
August 20259576.4° / 63.6°11.4h3d0"29
September 20258772.5° / 60°9.4h10d0.4"22
October 20258463.5° / 52.5°7.6h6d1.69"21
November 20257559.7° / 50.7°6h9d4.89"18
December 20257156.6° / 48.1°5.4h8d5.65"16
January 20267556.9° / 49.5°6.3h6d5.97"20
February 20267055.8° / 47.7°6.8h7d6.22"14
March 20269367° / 56.3°9.6h3d0"26
April 20267657.2° / 46.9°8.8h9d4.64"16
May 20268663.3° / 51.1°11.7h11d0.35"21
June 20269270.4° / 55.9°12.2h6d0.02"26
July 20269474.3° / 60.7°11.7h6d0.04"30
August 20269376.7° / 64.6°11.2h5d0"28
Last updated: 9/2/2026

Climate Trends

Average Temperature by Month

80°F70°F60°F50°F40°FOct '24Nov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26
Average High
Average Low
About the Monte Bello Open Space Preserve climate charts

The temperature chart compares average monthly highs and lows at Monte Bello Open Space 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 Monte Bello Open Space 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

How to read the temperature heatmap for Monte Bello Open Space Preserve

This heatmap shows how average temperature at Monte Bello Open Space Preserve changes by hour and month. Read left to right for the seasons and top to bottom for the time of day; warmer colors identify the usual afternoon peaks and cooler colors show overnight and winter lows.

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.

How to read the fog heatmap for Monte Bello Open Space Preserve

This heatmap shows when fog or low cloud is most likely at Monte Bello Open Space Preserve. Darker cells mark month-and-hour combinations with a stronger historical fog signal, which helps separate overnight or morning fog from cloud that tends to linger into the afternoon.

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.

How to read the wind heatmap for Monte Bello Open Space Preserve

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

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.

How to read the cloud cover heatmap for Monte Bello Open Space Preserve

This heatmap shows average cloud cover at Monte Bello Open Space 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.

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.

How to read the solar radiation heatmap for Monte Bello Open Space Preserve

This heatmap shows the average solar radiation reaching Monte Bello Open Space 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…

Location Details

📍
Coordinates
37.3242, -122.1733
⛰️
Elevation
2800 ft
🏷️
Type
Park
🏷️
Tags
#above-fog#views#hiking#geology
Map
Loading map...
Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Monte Bello Open Space Preserve

What is the weather at Monte Bello Open Space Preserve right now?

Current conditions at Monte Bello Open Space Preserve are 69°F, feeling like 65°F, with 31% humidity, winds near 2 mph, 0% cloud cover, and a 0% chance of precipitation. Mild with clear skies

What temperatures are typical at Monte Bello Open Space Preserve?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 67°F and an average low of 46°F at Monte Bello Open Space Preserve. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Monte Bello Open Space Preserve get?

The location-specific climate baseline estimates about 42.3 inches of precipitation and 104 days with measurable rain in a typical year at Monte Bello Open Space Preserve. The monthly breakdown shows when that rain is most likely.

How often is Monte Bello Open Space Preserve foggy?

Monte Bello Open Space Preserve averages about 0.0 hours of morning fog per day across the location-specific climate baseline, with approximately 0 foggy days in a typical year. Fog varies considerably by season, so check the monthly breakdown and current forecast for visit planning.

What are the best months to visit Monte Bello Open Space Preserve for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are June 2025 (70°F/57°F average high/low and a 96 comfort score), August 2025 (76°F/64°F average high/low and a 95 comfort score), and July 2026 (74°F/61°F average high/low and a 94 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Monte Bello Open Space Preserve?

Monte Bello Open Space Preserve is a park at 2,800 feet. Ridge trails along San Andreas Fault. Notable features include above-fog, views, hiking, and geology.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Monte Bello Open Space Preserve.