Muir Beach Weather

Beach • San Francisco Bay Area

Small cove beach south of Stinson

56°
🙂
Comfort Score
76(B)
Great
Weather updated September 30, 2026 at 10:01 PM PDT

Muir Beach weather at a glance

Muir Beach is a beach at 10 feet in San Francisco Bay Area. Small cove beach south of Stinson. Notable features include quiet and hiking-nearby.

Current conditions are 56°F, feeling like 56°F, with 100% humidity, winds near 3 mph, 100% cloud cover, and a 0% chance of precipitation. Cool and humid with fog or low cloud.

The location-specific climate baseline shows an average daily high of 64°F and an average low of 49°F, with about 10.3 hours of sunshine per day and 1.8 hours of morning fog per day. Expected annual precipitation is approximately 30.2 inches.

Plan your week

10-Day Forecast

Drag or swipe to browse
  1. Today
    Sep 30
    73°54°
    Comfort
    91
    0%
    Precip 0 in
  2. Thu
    Oct 1
    62°54°
    Comfort
    83
    1%
    Precip 0 in
  3. Fri
    Oct 2
    73°53°
    Comfort
    87
    1%
    Precip 0 in
  4. Sat
    Oct 3
    92°64°
    Comfort
    67
    0%
    Precip 0 in
  5. Sun
    Oct 4
    91°68°
    Comfort
    71
    1%
    Precip 0 in
  6. Mon
    Oct 5
    90°65°
    Comfort
    70
    0%
    Precip 0 in
  7. Tue
    Oct 6
    89°65°
    Comfort
    74
    0%
    Precip 0 in
  8. Wed
    Oct 7
    91°68°
    Comfort
    69
    1%
    Precip 0 in
  9. Thu
    Oct 8
    88°65°
    Comfort
    78
    1%
    Precip 0 in
  10. Best day
    Fri
    Oct 9
    70°56°
    Comfort
    96
    0%
    Precip 0 in

Hour by hour

Hourly Forecast

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  1. Today
    Now
    56°
    Comfort
    88
    0%
    0 in
  2. Today
    11 PM
    56°
    Comfort
    88
    0%
    0 in
  3. Thu
    12 AM
    56°
    Comfort
    87
    0%
    0 in
  4. Thu
    1 AM
    55°
    Comfort
    87
    0%
    0 in
  5. Thu
    2 AM
    55°
    Comfort
    86
    0%
    0 in
  6. Thu
    3 AM
    54°
    Comfort
    86
    0%
    0 in
  7. Thu
    4 AM
    54°
    Comfort
    74
    0%
    0 in
  8. Thu
    5 AM
    54°
    Comfort
    74
    0%
    0 in
  9. Thu
    6 AM
    54°
    Comfort
    74
    0%
    0 in
  10. Thu
    7 AM
    55°
    Comfort
    75
    0%
    0 in
  11. Sunrise7:06 AM
  12. Thu
    8 AM
    54°
    Comfort
    75
    0%
    0 in
  13. Thu
    9 AM
    55°
    Comfort
    75
    0%
    0 in
  14. Thu
    10 AM
    55°
    Comfort
    76
    0%
    0 in
  15. Thu
    11 AM
    57°
    Comfort
    78
    0%
    0 in
  16. Thu
    12 PM
    60°
    Comfort
    81
    0%
    0 in
  17. Thu
    1 PM
    61°
    Comfort
    83
    0%
    0 in
  18. Thu
    2 PM
    62°
    Comfort
    84
    0%
    0 in
  19. Thu
    3 PM
    62°
    Comfort
    84
    0%
    0 in
  20. Thu
    4 PM
    61°
    Comfort
    80
    1%
    0 in
  21. Thu
    5 PM
    58°
    Comfort
    77
    1%
    0 in
  22. Thu
    6 PM
    56°
    Comfort
    75
    1%
    0 in
  23. Sunset6:53 PM
  24. Thu
    7 PM
    55°
    Comfort
    74
    1%
    0 in
  25. Thu
    8 PM
    55°
    Comfort
    74
    1%
    0 in
  26. Thu
    9 PM
    55°
    Comfort
    75
    1%
    0 in
  27. Thu
    10 PM
    55°
    Comfort
    80
    1%
    0 in
  28. Thu
    11 PM
    55°
    Comfort
    83
    1%
    0 in
  29. Fri
    12 AM
    55°
    Comfort
    76
    1%
    0 in
  30. Fri
    1 AM
    55°
    Comfort
    75
    0%
    0 in
  31. Fri
    2 AM
    54°
    Comfort
    74
    0%
    0 in
  32. Fri
    3 AM
    54°
    Comfort
    73
    0%
    0 in
  33. Fri
    4 AM
    54°
    Comfort
    74
    0%
    0 in
  34. Fri
    5 AM
    53°
    Comfort
    73
    1%
    0 in
  35. Fri
    6 AM
    54°
    Comfort
    74
    0%
    0 in
  36. Fri
    7 AM
    53°
    Comfort
    73
    0%
    0 in
  37. Sunrise7:07 AM
  38. Fri
    8 AM
    53°
    Comfort
    73
    0%
    0 in
  39. Fri
    9 AM
    55°
    Comfort
    76
    0%
    0 in
  40. Fri
    10 AM
    61°
    Comfort
    81
    0%
    0 in
  41. Fri
    11 AM
    60°
    Comfort
    80
    0%
    0 in
  42. Fri
    12 PM
    61°
    Comfort
    81
    0%
    0 in
  43. Fri
    1 PM
    60°
    Comfort
    79
    0%
    0 in
  44. Fri
    2 PM
    60°
    Comfort
    79
    0%
    0 in
  45. Fri
    3 PM
    66°
    Comfort
    85
    0%
    0 in
  46. Fri
    4 PM
    73°
    Comfort
    89
    0%
    0 in
  47. Fri
    5 PM
    72°
    Comfort
    95
    0%
    0 in
  48. Fri
    6 PM
    72°
    Comfort
    94
    0%
    0 in
  49. Sunset6:51 PM
  50. Fri
    7 PM
    68°
    Comfort
    91
    0%
    0 in
  51. Fri
    8 PM
    68°
    Comfort
    94
    0%
    0 in
  52. Fri
    9 PM
    68°
    Comfort
    96
    0%
    0 in

Current Conditions

Temperature
56°F
Feels like 56°F
Humidity
100%
Dew point 56°F
Wind
3 mph
NW • Gusts 5 mph
Cloud Cover
100%
Fog / low cloud
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal75
Wind100
Night Sky0
Moisture100
Precipitation100

Weather Maps

About the weather maps for Muir Beach

Each preview is centered on Muir Beach, 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 Muir Beach. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
73°Fforecast
5° above normal
Normal: 69°F
Rainfall Year-to-Date
17.2"
18% below average
30-yr avg: 21.0"
Sunny Days
10last 28 days
17 fewer than baseline
Typical: 27
Foggy Days
25last 28 days
vs 7 typical
Foggier than usual
Avg Wind Speed
10.3 mphlast 28 days
2.2 mph windier than baseline
Typical: 8.0 mph
Comfort Score
7028-day avg
7 pts below typical
Recent baseline: 77
What the Muir Beach climate comparisons mean

These cards compare recent conditions at Muir Beach 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 Beach 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

74
Avg Comfort
63.8°
Avg High
49.4°
Avg Low
40%
Perfect Days
☀️ Avg Sunshine10.3h/day
🌫️ Avg Fog1.8h/day
💧 Avg Annual Rain30.2"
🌧️ Rainy Days/yr72 (20%)
🌫️ Foggy Days/yr102
✨ Perfect Days (80+)269

🌟 Best Months to Visit

1. June85
68° / 51.7° · ☀️ 13.3h
6 foggy days · 1 rainy days
2. July78
69.2° / 53.3° · ☀️ 13.2h
10 foggy days · 0 rainy days
3. May76
64.3° / 49.7° · ☀️ 12.7h
6 foggy days · 4 rainy days

⚠️ Challenging Months

1. December31
56.1° / 44.6° · ☀️ 6.7h
💧 6.2" · 12 rainy days · 10 foggy days
2. January31
55.8° / 44.4° · ☀️ 7h
💧 6.2" · 11 rainy days · 11 foggy days
3. February39
58.1° / 45.5° · ☀️ 8.2h
💧 5.6" · 11 rainy days · 9 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
October 20247756° / 53.2°8.5h0d0.23"1
November 20247356.7° / 51.9°6.1h8d6.39"14
December 20246555.5° / 51.1°4.4h14d8.81"9
January 20257955.9° / 50°6.9h6d0.26"18
February 20256954.3° / 49.3°6.3h7d9.43"11
March 20257453.9° / 48.8°7.5h7d2.66"12
April 20257453.4° / 49.4°8h13d0.36"8
May 20258054.7° / 50.2°11.1h10d0.16"19
June 20257154.5° / 50.6°8.4h22d0"6
July 20256856.5° / 53°6.8h27d0"3
August 20257759.5° / 54.7°9.2h18d0"12
September 20257862.4° / 57.4°7.2h17d0.1"16
October 20258062° / 56.4°7.1h8d0.88"17
November 20257358.5° / 52.8°6.1h10d3.9"9
December 20256454.5° / 49°4.7h11d5.92"4
January 20267558.3° / 52.3°6.5h5d5.65"18
February 20267157.8° / 52.1°6h4d6.67"10
March 20268659.4° / 53°9.4h5d0.05"23
April 20267857.2° / 52.7°8.8h7d4.07"16
May 20267655.8° / 51.2°9.7h16d0.72"13
June 20267456.9° / 53.1°8h14d0.01"12
July 20267858.2° / 53.8°9.8h16d0"15
August 20267059.1° / 54.7°6.4h28d0"3
Last updated: 9/2/2026

Climate Trends

Average Temperature by Month

64°F60°F56°F52°F47°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 Muir Beach climate charts

The temperature chart compares average monthly highs and lows at Muir Beach, 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 Beach. 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 Muir Beach

This heatmap shows how average temperature at Muir Beach 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 Muir Beach

This heatmap shows when fog or low cloud is most likely at Muir Beach. 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 Muir Beach

This heatmap shows the typical hourly wind pattern at Muir Beach 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 Muir Beach

This heatmap shows average cloud cover at Muir Beach 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 Muir Beach

This heatmap shows the average solar radiation reaching Muir Beach 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
37.8597, -122.5758
⛰️
Elevation
10 ft
🏷️
Type
Beach
✨
Amenities
🅿️ parking🚻 restrooms
🏷️
Tags
#quiet#hiking-nearby
Map
Loading map...
Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Muir Beach

What is the weather at Muir Beach right now?

Current conditions at Muir Beach are 56°F, feeling like 56°F, with 100% humidity, winds near 3 mph, 100% cloud cover, and a 0% chance of precipitation. Cool and humid with fog or low cloud

What temperatures are typical at Muir Beach?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 64°F and an average low of 49°F at Muir Beach. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Muir Beach get?

The location-specific climate baseline estimates about 30.2 inches of precipitation and 72 days with measurable rain in a typical year at Muir Beach. The monthly breakdown shows when that rain is most likely.

How often is Muir Beach foggy?

Muir Beach averages about 1.8 hours of morning fog per day across the location-specific climate baseline, with approximately 102 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 Muir Beach for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are March 2026 (59°F/53°F average high/low and a 86 comfort score), May 2025 (55°F/50°F average high/low and a 80 comfort score), and October 2025 (62°F/56°F average high/low and a 80 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Muir Beach?

Muir Beach is a beach at 10 feet. Small cove beach south of Stinson. Notable features include quiet and hiking-nearby.

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