Muir Beach, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Muir Beach, a community in Marin County, California.
Today
60°F
Light Rain
Rain. Mostly cloudy. High near 60, with temperatures falling to around 58 in the afternoon. South southwest wind 6 to 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Muir Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Light Rain | 6 to 22 mph SSW | 90% |
| Tonight | 55°F | Chance Light Rain then Mostly Cloudy | 7 to 16 mph ESE | 37% |
| Wednesday | 60°F | Mostly Sunny | 5 to 18 mph N | 4% |
| Wednesday Night | 56°F | Mostly Cloudy | 6 to 18 mph NNW | 0% |
| Thursday | 61°F | Sunny | 3 to 9 mph NNW | 0% |
| Thursday Night | 56°F | Mostly Clear | 3 to 10 mph NW | 0% |
| Friday | 65°F | Sunny | 2 to 6 mph NNW | 0% |
| Friday Night | 55°F | Mostly Clear | 1 to 6 mph NNW | 0% |
| Saturday | 67°F | Sunny | 2 to 7 mph NNE | 0% |
| Saturday Night | 56°F | Partly Cloudy | 6 mph NW | 0% |
| Sunday | 67°F | Mostly Sunny | 2 to 6 mph NW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 2 to 6 mph NW | 0% |
| Monday | 65°F | Partly Sunny | 3 to 9 mph NW | 2% |
| Monday Night | 55°F | Mostly Cloudy | 3 to 9 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Muir Beach (37.862, -122.580). Updated through the day.
Growing snapshot for Muir Beach
Growing season
365 days
Hardiness zone
10a
More local growing data for Muir Beach: nearby ZIP 94965 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alto
Belvedere
Black Point-Green Point
Bolinas
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Dillon Beach
Fairfax
Inverness
Kentfield
Lagunitas-Forest Knolls
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Lucas Valley-Marinwood
Marin City
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Novato
Petaluma Center
Point Reyes Station
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San Anselmo
San Francisco
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Sausalito
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Tamalpais-Homestead Valley
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Climate data from the nearest NOAA station, San Francisco Dwtn, Ca (7.2 mi from Muir Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.