San Anselmo, CA Weather
San Anselmo, CA climate is mild during summer when temperatures tend to be in the 60's and cool during winter when temperatures tend to be in the 50's.
The warmest month of the year is July with an average maximum temperature of 85.00 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 40.60 degrees Fahrenheit.
Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 31 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.
The annual average precipitation at San Anselmo is 47.47 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is January with an average rainfall of 9.60 Inches.
Weather Data
Current Conditions
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Fair, 57°F | Humidity: 53% | Dewpoint: 40°F |
| Wind Speed: CALM | Heat Index: 57°F | ||
| Barometer: 30.10 in. | Wind Chill: 57°F |
Weather Forecast
| Hi: 66°F | Today: Mostly sunny. Patchy fog in the morning. Highs in the 60s to lower 70s. Northwest winds 10 to 20 mph. | |
| Lo: 45°F | ||
| Hi: 65°F | Monday: Partly cloudy. Highs in the 60s. Southwest winds around 5 mph. | |
| Lo: 49°F | ||
| Hi: 65°F | Tuesday: Partly cloudy. A chance of showers. Highs in the 60s. North winds around 5 mph...Becoming west in the afternoon. Chance of showers 30 percent. | |
| Lo: 49°F | ||
| Hi: 63°F | Veterans day: Mostly cloudy in the morning then becoming partly cloudy. A chance of showers. Highs in the lower to mid 60s. | |
| Lo: 45°F | ||
| Hi: 66°F | Thursday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s. | |
| Lo: 41°F | ||
| Hi: 66°F | Friday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s. | |
| Lo: 41°F | ||
| Hi: 66°F | Friday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s. | |
| Lo: 45°F |
Moon, Sunrise and Sunset
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Moon Phase: Waning Gibbous Moon | Civil Twilight: 6:15 AM PST |
Sunrise: 6:42 AM PST |
| Sunset: 5:04 PM PST |
Civil Twilight: 5:32 PM PST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 56.2 | 61.4 | 65.3 | 70.6 | 76.0 | 81.8 | 85.0 | 84.4 | 82.1 | 75.4 | 63.4 | 56.3 | 71.5 |
| Mean °F | 48.5 | 52.2 | 54.7 | 58.2 | 62.5 | 66.9 | 69.2 | 69.0 | 67.3 | 62.5 | 54.2 | 48.5 | 59.5 |
| Min °F | 40.7 | 43.0 | 44.1 | 45.8 | 48.9 | 52.0 | 53.4 | 53.6 | 52.5 | 49.6 | 45.0 | 40.6 | 47.4 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 9.60 | 9.10 | 7.05 | 2.56 | 1.20 | 0.24 | 0.01 | 0.12 | 0.50 | 2.33 | 7.47 | 7.29 | 47.47 |

