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Muir Woods National Monument Weather

Park • San Francisco Bay Area

Muir Woods National Monument protects an old-growth coast redwood forest along Redwood Creek, in a canyon on the southwest flank of Mount Tamalpais. The forest lies about three miles up the creek from Muir Beach. The National Park Service runs it, and Mount Tamalpais State Park surrounds it. The Park Service puts the average tree's age at 600 to 800 years, and the tallest redwood here reaches about 258 feet. Unlike most Marin parks, Muir Woods requires drivers to reserve parking, and there is no cell service once you arrive.

57°
🙂
Comfort Score
80(B+)
Great
Typical for November · typical high 62°
Weather updated November 15, 2026 at 4:00 AM PST

Plan your week

10-Day Forecast

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  1. Today
    Nov 15
    62°51°
    Comfort
    51
    83%
    Rain 0.65 in
  2. Mon
    Nov 16
    57°49°
    Comfort
    57
    65%
    Rain 0.56 in
  3. Tue
    Nov 17
    57°46°
    Comfort
    45
    91%
    Rain 0.02 in
  4. Wed
    Nov 18
    58°53°
    Comfort
    37
    99%
    Rain 2.2 in
  5. Thu
    Nov 19
    58°54°
    Comfort
    42
    91%
    Rain 1.0 in
  6. Best day
    Fri
    Nov 20
    60°53°
    Comfort
    78
    20%
    Rain 0.08 in
  7. Sat
    Nov 21
    60°52°
    Comfort
    73
    33%
    Rain 0 in
  8. Sun
    Nov 22
    58°53°
    Comfort
    66
    39%
    Rain 0.36 in
  9. Mon
    Nov 23
    61°53°
    Comfort
    69
    43%
    Rain 0.14 in
  10. Tue
    Nov 24
    61°60°
    Comfort
    59
    61%
    Rain 1.7 in
See hiking scores for every trail this week →

Hour by hour

Hourly Forecast

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  1. Today
    Now
    57°
    Comfort
    80
    2%
    0 in
  2. Today
    5 AM
    57°
    Comfort
    81
    3%
    0 in
  3. Today
    6 AM
    57°
    Comfort
    80
    3%
    0 in
  4. Sunrise6:51 AM
  5. Today
    7 AM
    57°
    Comfort
    68
    4%
    0 in
  6. Today
    8 AM
    58°
    Comfort
    74
    6%
    0 in
  7. Today
    9 AM
    60°
    Comfort
    77
    8%
    0 in
  8. Today
    10 AM
    62°
    Comfort
    72
    12%
    0 in
  9. Today
    11 AM
    61°
    Comfort
    71
    24%
    0 in
  10. Today
    12 PM
    60°
    Comfort
    55
    43%
    0.02 in
  11. Today
    1 PM
    58°
    Comfort
    32
    58%
    0.13 in
  12. Today
    2 PM
    57°
    Comfort
    41
    68%
    0.08 in
  13. Today
    3 PM
    56°
    Comfort
    56
    76%
    0.02 in
  14. Today
    4 PM
    55°
    Comfort
    56
    83%
    <0.01 in
  15. Sunset4:58 PM
  16. Today
    5 PM
    54°
    Comfort
    55
    60%
    0.02 in
  17. Today
    6 PM
    53°
    Comfort
    56
    58%
    0.03 in
  18. Today
    7 PM
    53°
    Comfort
    62
    47%
    <0.01 in

Current Conditions

Temperature
57°F
Feels like 54°F
Humidity
84%
Dew point 52°F
Wind
8 mph
NW • Gusts 19 mph
Cloud Cover
100%
Mid-level clouds
Precip Chance
2%

Comfort Breakdown

Less comfortableMore comfortable
Thermal73
Wind96
Moisture100
Precipitation100

Muir Woods National Monument weather today and through the year

It's 57°F at Muir Woods National Monument right now (feels like 54°F), with 8 mph wind and a comfort score of 80. Today's forecast high at Muir Woods National Monument is 62°F, close to the mid November normal of 62°F. No fog in the forecast for today at Muir Woods National Monument. In November, 26% of morning hours here are foggy on average. The best window today is 9 AM to noon, at about 53°F with a 4 mph wind (comfort 58).

September is the warmest month at Muir Woods National Monument, with an average high of 73°F. January is the coldest, with an average low of 43°F. December is the wettest month (7.8 in.), out of about 35.8 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Muir Woods National Monument are September, July, and August. The best hours are usually 10 AM to 1 PM in September, 11 AM to 2 PM in July, and 11 AM to 2 PM in August.

The monument sits low in the Redwood Creek canyon, whose lower end opens through Frank Valley to the ocean at Muir Beach. On many summer mornings, low clouds that form over the Pacific are pulled inland up that valley and settle among the trees. The Park Service tells visitors to expect heavy fog in the morning that burns off in the afternoon.

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 Muir Woods National Monument in the next few days

Active National Weather Service alerts

  • High Surf Advisory until Tue 4:00 AM

Fog

No fog in the forecast for today at Muir Woods National Monument. In November, 26% of morning hours here are foggy on average.

Best time to go

The best window today is 9 AM to noon, at about 53°F with a 4 mph wind (comfort 58).

Hiking conditions

Best hiking day this week: Monday, with 9 daylight hours that are dry, 45 to 80°F, and under 18 mph wind. 4 of the next 7 days have at least 4 such hours.

Best day this week

Of the next 7 days, Friday looks best for Muir Woods National Monument, with a 60°F high and midday comfort near 78. Today looks weakest (48).

Rain

Next good chance of rain: today (83%, about 0.65 in.).

Live weather map

Weather around Muir Woods National Monument right now

Overcast and 57° at Muir Woods National Monument right now.

Live weather map
About the live weather map for Muir Woods National Monument

The map centers on Muir Woods National Monument 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.

Muir Woods National Monument vs nearby places

Typical summer conditions compared with Muir Woods National Monument, 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 Muir Woods National Monument
PlaceDistanceSummer afternoonsMorning fogAfternoon windCompared with Muir Woods National Monument
Mill Valley1.7 mi+2°F19%8 mpha very similar climate
Muir Beach2.2 mi-11°F49%12 mphabout 11°F cooler on summer afternoons and more summer morning fog (49% vs 24% of morning hours)
Mount Tamalpais State Park2.6 mi-2°F20%7 mph2,434 ft higher
Rodeo Beach4.5 mi-18°F48%13 mphabout 18°F cooler on summer afternoons and more summer morning fog (48% vs 24% of morning hours)
Pacifica19.8 mi-19°F56%9 mphabout 19°F cooler on summer afternoons and more summer morning fog (56% vs 24% of morning hours)
Montara24.4 mi-18°F60%8 mphabout 18°F cooler on summer afternoons and more summer morning fog (60% vs 24% of morning hours)

Places with a climate like Muir Woods National Monument's

  • Mission District (13 mi away): similar temperatures through the year
  • Potrero Hill (13 mi away): similar temperatures through the year
  • SoMa (12 mi away): similar temperatures through the year

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
62°Fforecast
0° above normal
Normal: 62°F
Rainfall Year-to-Date
20.7"
20% below average
30-yr avg: 26.1"
Sunny Days
25last 28 days
4 more than baseline
Recent baseline: 21
Foggy Days
2last 28 days
vs 10 recent baseline
Clearer than usual
Avg Wind Speed
6.7 mphlast 28 days
Typical conditions
Recent baseline: 7.1 mph
Comfort Score
9028-day avg
6 pts above typical
Recent baseline: 84
What the Muir Woods National Monument climate comparisons mean

These cards compare recent conditions at Muir Woods National Monument 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 Muir Woods National Monument 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.

Muir Woods National Monument weather by month

September is the warmest month at Muir Woods National Monument, with an average high of 73°F. January is the coldest, with an average low of 43°F. December is the wettest month (7.8 in.), out of about 35.8 in. a year. Morning fog peaks in December, when fog or low cloud covers 40% of the hours from 6 to 10 AM. June has the clearest middays, with clouds covering about 15% of the sky from 11 AM to 3 PM.

By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Muir Woods National Monument are September, July, and August. The best hours are usually 10 AM to 1 PM in September, 11 AM to 2 PM in July, and 11 AM to 2 PM in August.

Typical monthly weather at Muir Woods National Monument. 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 Muir Woods National Monument hourly climatology.
MonthAvg highAvg lowRainRainy daysMorning fogMidday cloudAfternoon windDaylightComfort
Jan56°F43°F6.8 in1135%37%7 mph9.8 h34
Feb58°F44°F6.8 in1119%28%7 mph10.7 h41
Mar61°F45°F5.0 in921%31%8 mph11.9 h48
Apr63°F46°F2.3 in616%25%8 mph13.2 h66
May65°F49°F1.1 in419%25%10 mph14.2 h76
Jun70°F51°F0.3 in218%15%10 mph14.8 h87
Jul72°F53°F0.0 in125%16%10 mph14.5 h89
Aug73°F54°F0.1 in129%18%9 mph13.6 h89
Sep73°F54°F0.1 in223%18%8 mph12.3 h92
Oct70°F51°F1.6 in521%20%7 mph11.1 h84
Nov62°F47°F3.9 in826%25%6 mph10.0 h67
Dec56°F43°F7.8 in1240%39%7 mph9.5 h31

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 Muir Woods National Monument average about 7°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 Muir Woods National Monument has actually seen.

What makes Muir Woods National Monument's weather different

When the fog burns off

4 PMwhen December fog usually thins (45% foggy at 7 AM)

Fog or low cloud covers Muir Woods National Monument in 45% of 7 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM, but 15% of mid-afternoon hours are still foggy. April mornings are the least foggy (16%).

When the wind picks up

1 PMwhen afternoon wind builds, April–August

From April through August, wind at Muir Woods National Monument typically builds after 1 PM. In May it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 7 mph.

Microclimate

−18°FRodeo Beach, 4.5 mi away, on summer afternoons

Rodeo Beach, 4.5 miles away, runs about 18°F cooler than Muir Woods National Monument on summer afternoons. It also has far more summer morning fog, 48% of morning hours compared with 24%.

Daylight

9.5–14.8 hof daylight, Dec to Jun

Days at Muir Woods National Monument range from about 9.5 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:34 PM, and in mid-December around 4:55 PM.

Seasons at Muir Woods National Monument

  • Warm seasonJul 4 – Oct 3 · highs 71°F+

    The warm season lasts about 3 months, from Jul 4 to Oct 3, when the average high is 71°F or warmer. Highs peak around Sep 8 at about 73°F.

  • Cool seasonDec 1 – Feb 24 · highs 59°F or lower

    The cool season runs from Dec 1 to Feb 24, when the average high is 59°F or lower. The coldest nights come around Jan 8, with an average low near 43°F.

  • Rainy seasonOct 26 – Apr 19 · 89% of the year's rain

    The rainy season runs from Oct 26 to Apr 19, when a day has at least a 20% chance of measurable rain. That stretch brings 89% 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 Oct 19 and half of its annual total by Jan 21.

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, Muir Woods National Monument averaged 1 day a year at 90°F or hotter and no freezing nights. It averaged 23 days a year with at least half an inch of rain and 2 afternoons with wind of 20 mph or more at 2 PM. About 118 mornings a year had 3 or more hours of fog or low cloud.

In the same record, the hottest day was Sep 9, 2026 (92°F) and the coldest night was Feb 18, 2026 (38°F). The wettest day was Nov 23, 2024 (2.93 in.), and the strongest 2 PM gust was 48 mph on Mar 12, 2025.

  • 1day at 90°F or hotter
  • 0nights at or below freezing
  • 23days with ½ in. of rain or more
  • 2afternoons with 20+ mph wind
  • 118mornings with 3+ hours of fog or low cloud
  • Hottest day92°FSep 9, 2026
  • Coldest night38°FFeb 18, 2026
  • Wettest day2.93 inNov 23, 2024
  • Strongest 2 PM gust48 mphMar 12, 2025

What shapes Muir Woods National Monument's weather

The floor of Muir Woods stays cool even after the morning fog lifts. A dense redwood canopy filters out most of the sunlight, and the steep canyon walls cut the day short. Cool air also settles along the creek bottom. Mill Valley, about two miles east over the ridge, has a similar climate on paper, but its sunny streets feel much warmer than the shaded canyon.

Fog is also the forest's summer water. Rain is rare here from June through September, but fog condenses on redwood needles and drips to the ground and into the creek. The Park Service says redwoods get up to 40% of their water from fog. It also says Northern California gets about a third less fog than it did a century ago, as coastal ocean temperatures have risen.

Rain returns from late October to early May. Big winter storms swell Redwood Creek until it breaks through the sandbar at Muir Beach, which lets coho salmon and steelhead swim up to spawn.

Tips for visiting Muir Woods National Monument

  • Reserve parking before you leave

    Drivers need a parking reservation from GoMuirWoods.com, and they often sell out. Hikers and bikers arriving under their own power don't need one.

  • Save your reservation offline

    There is no cell phone service or Wi-Fi at or around Muir Woods, so download your reservation and maps before you go.

  • Dress for 40s to 70s °F

    The Park Service says the forest is cool most of the year, with temperatures ranging from about 40 to 70°F. Bring a layer even in summer.

  • Ride the shuttle from Larkspur

    In the busy season, the Muir Woods Shuttle runs from the Larkspur Ferry Terminal on Fridays, weekends, and holidays. Shuttle riders need a reservation too.

  • No dogs or bikes in the forest

    Pets are not permitted in Muir Woods, and bikes are not allowed on its trails.

  • Allow extra time for the drive

    Traffic and narrow, winding roads often make the trip longer than expected.

Muir Woods National Monument through the seasons

Spring (March–May)
Spring is the tail of the rainy season, which the Park Service says runs to early May. The creek still runs full and the trails stay damp.
Summer (June–August)
Summer is cool and dry under the canopy, and fog often fills the canyon in the morning before burning off in the afternoon. It is also the busiest season for the shuttle and parking.
Fall (September–October)
The Park Service says some call August through October the best weather of the year here, with less fog and milder afternoons.
Winter (November–February)
Rainy season. After heavy rains breach the sandbar at Muir Beach, you can watch coho salmon and steelhead spawning from the footbridges over Redwood Creek.

Activities and the weather that matters

  • Walking the main trail: Good in any weather. On foggy summer mornings, fog condensing on the redwoods drips onto the trail, the forest's main source of moisture between early summer and late fall.
  • Salmon watching: Salmon watching needs a wet winter. The spawning run starts once heavy late-fall or winter rain opens the creek mouth at Muir Beach.
  • Hiking up toward Mount Tamalpais: Trails climbing out of the canyon can rise above summer morning fog into sun. Wet winter storms make the steep sections muddy.

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

83
Avg Comfort
64.9°
Avg High
48.4°
Avg Low
68%
Perfect Days
☀️ Avg Sunshine (recent)8.8h/day
🌫️ Avg Fog (recent)1.9h/day
💧 Avg Annual Rain35.8"
🌧️ Rainy Days/yr72 (20%)
🌫️ Foggy Days/yr (recent)95
✨ Perfect Days (80+)494

🌟 Best Months to Visit

1. August79
73° / 53.9° · ☀️ 10.9h
6 foggy days · 1 rainy days
2. May77
65.4° / 48.8° · ☀️ 11.8h
5 foggy days · 4 rainy days
3. June75
69.7° / 51° · ☀️ 11.8h
8 foggy days · 2 rainy days

⚠️ Challenging Months

1. December26
55.9° / 43.3° · ☀️ 4.7h
💧 7.8" · 11 rainy days · 18 foggy days
2. January32
55.7° / 43.1° · ☀️ 6.7h
💧 6.8" · 11 rainy days · 9 foggy days
3. February40
58.4° / 44.2° · ☀️ 6.3h
💧 6.8" · 11 rainy days · 7 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
November 20247559° / 49.3°6.1h6d7.52"17
December 20246657.2° / 48.8°4.7h16d10.85"12
January 20258157.2° / 46.2°7.1h7d0.31"20
February 20257357.3° / 46.1°6.4h8d11.09"15
March 20257656.7° / 45.6°7.6h8d3.25"15
April 20258557.7° / 46.8°10h5d0.4"20
May 20259264.6° / 49.6°12.3h1d0.17"29
June 20258961.6° / 49.5°12.3h6d0"26
July 20258560.5° / 51.7°11.4h11d0"22
August 20259668.4° / 54.9°11.4h2d0"31
September 20258767.9° / 56.6°8.8h10d0.11"24
October 20258465.3° / 53.9°7.5h10d0.92"22
November 20257359.5° / 50.6°5.9h14d4.51"9
December 20256254.2° / 46.4°4.7h19d6.89"3
January 20267459.1° / 49.8°6.3h11d6.74"18
February 20267359.7° / 49.4°6.2h5d8.15"14
March 20269469.6° / 53.5°9.7h4d0.05"27
April 20268261.1° / 49.7°9.4h6d4.41"21
May 20268762.5° / 50.7°11.2h9d0.73"23
June 20268764.3° / 52.4°11.3h10d0"22
July 20269266.7° / 53.7°11.7h6d0"25
August 20268864.3° / 53.9°10.4h10d0"26
September 20269067.3° / 55.1°9.8h5d0.31"24
October 20269169.2° / 54.8°8.5h2d0.32"29
Last updated: 11/9/2026

Climate Trends

Average Temperature by Month

72°F65°F58°F50°F43°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 Muir Woods National Monument climate charts

The temperature chart compares average monthly highs and lows at Muir Woods National Monument, 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 Muir Woods National Monument. 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 Muir Woods National Monument, the warmest typical hour is 4 PM in August (77°F). The coldest is 7 AM in January (47°F).
  • Fog: Fog or low cloud covers Muir Woods National Monument in 45% of 7 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM, but 15% of mid-afternoon hours are still foggy. April mornings are the least foggy (16%).
  • Wind: From April through August, wind at Muir Woods National Monument typically builds after 1 PM. In May it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 7 mph.
  • Cloud Cover: June middays are the clearest at Muir Woods National Monument (15% average cloud cover), and December middays are the cloudiest (39%).
  • Solar Radiation: The strongest typical sun at Muir Woods National Monument comes at 1 PM in July, averaging 970 W/m².
How to read the hourly heatmaps for Muir Woods National Monument

This heatmap shows how average temperature at Muir Woods National Monument 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 Muir Woods National Monument. 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 Muir Woods National Monument 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 Muir Woods National Monument 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 Muir Woods National Monument 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 Muir Woods National Monument

  • October 2026 recap: October 2026 at Muir Woods National Monument averaged a high of 69°F, 4°F warmer than October 2025 (65°F).
  • Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 32.7 in. of rain to Muir Woods National Monument, 91% of the 35.8 in. normal.

Location Details

📍
Coordinates
37.8919, -122.5714
⛰️
Elevation
137 ft
🏷️
Type
Park
🏷️
Tags
#cool#foggy#redwoods#tourist

Muir Woods National Monument weather questions

Everything you need to know about weather and visiting Muir Woods National Monument

What is the weather like at Muir Woods National Monument today?

It's 57°F at Muir Woods National Monument right now, with a comfort score of 80 (great). Today's forecast high at Muir Woods National Monument is 62°F, close to the mid November normal of 62°F. The best window today is 9 AM to noon, at about 53°F with a 4 mph wind (comfort 58).

What is the best month to visit Muir Woods National Monument?

By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Muir Woods National Monument are September, July, and August. The best hours are usually 10 AM to 1 PM in September, 11 AM to 2 PM in July, and 11 AM to 2 PM in August. The warm season lasts about 3 months, from Jul 4 to Oct 3, when the average high is 71°F or warmer. Highs peak around Sep 8 at about 73°F.

What are the warmest and coldest months at Muir Woods National Monument?

September is the warmest month at Muir Woods National Monument, with an average high of 73°F. January is the coldest, with an average low of 43°F.

When does the fog burn off at Muir Woods National Monument?

Fog or low cloud covers Muir Woods National Monument in 45% of 7 AM hours in December, the foggiest month. It usually thins to a third of that by 4 PM, but 15% of mid-afternoon hours are still foggy. April mornings are the least foggy (16%).

When is it windiest at Muir Woods National Monument?

From April through August, wind at Muir Woods National Monument typically builds after 1 PM. In May it peaks around 5 PM, averaging 11 mph with 10% of those hours windy, while mornings average 7 mph.

How much rain does Muir Woods National Monument get?

December is the wettest month (7.8 in.), out of about 35.8 in. a year. The rainy season runs from Oct 26 to Apr 19, when a day has at least a 20% chance of measurable rain. That stretch brings 89% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 32.7 in. of rain to Muir Woods National Monument, 91% of the 35.8 in. normal.

How does Muir Woods National Monument weather compare with Rodeo Beach?

Rodeo Beach, 4.5 miles away, runs about 18°F cooler than Muir Woods National Monument on summer afternoons. It also has far more summer morning fog, 48% of morning hours compared with 24%.

Do I need a reservation to visit Muir Woods?

If you drive, yes. Parking reservations must be made ahead of time at GoMuirWoods.com and often sell out, especially on weekends and holidays. Visitors who arrive on foot or by bike don't need a parking reservation.

What kind of place is Muir Woods National Monument?

Muir Woods National Monument protects an old-growth coast redwood forest along Redwood Creek, in a canyon on the southwest flank of Mount Tamalpais. The forest lies about three miles up the creek from Muir Beach. The National Park Service runs it, and Mount Tamalpais State Park surrounds it. The Park Service puts the average tree's age at 600 to 800 years, and the tallest redwood here reaches about 258 feet. Unlike most Marin parks, Muir Woods requires drivers to reserve parking, and there is no cell service once you arrive.

What is Muir Woods National Monument weather like in November?

November at Muir Woods National Monument averages a high of 62°F and a low of 47°F, with 3.9 in. of rain over about 8 rainy days. About 26% of morning hours are foggy. Afternoon wind averages 6 mph.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Muir Woods National Monument.

Data sources and methods

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