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Hourly Forecast
Daylight Hours
06:58
Sunrise
19:10
Sunset
Moon
Waxing Crescent
12:48
Moonrise
21:28
Moonset
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Weather in San Anselmo today, September 16, 2026
Conditions in San Anselmo on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. Morning skies stay relatively clear, holding cloud close to 2% near 09:00. The early part of the day favours being outside.
The day peaks near 23°C and cools toward 13°C. Expect humidity between 56% and 89%, most humid near 04:00. Winds stay light, near 7.2 km/h by 15:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 19:00. Outdoor plans may still want a flexible backup. Expect visibility near 16.0 km, with poorer spells close to 13.9 km. Expect sunrise at 06:58, sunset at 19:10, and 12 hours 11 minutes of sunlight today overall.
In short, September 16, 2026 looks like a fine day in San Anselmo for being outside, peaking around 23°C.
Frequently asked questions about weather in San Anselmo
How warm does it get in San Anselmo?
The warmest month in San Anselmo is September, with average high temperatures of 24°C. The average temperature during this period is around 18°C.
How cold does it get in San Anselmo?
The coldest month in San Anselmo is December, with average low temperatures of 7°C. The average temperature during this period is around 10°C.
What is the wettest time of year in San Anselmo?
The wettest month in San Anselmo is January, with an average of 125mm of precipitation.
What is the driest time of year in San Anselmo?
The driest month in San Anselmo is July, with an average of 0mm of precipitation.
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