San Francisco Weather in October

What's the weather like in San Francisco (California) in October 2025?

The climate in San Francisco during October can be summarized as mild and reasonably dry.

October is in the fall / autumn in San Francisco and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 12°C (54°F) is normal.

San Francisco weather averages (imperial / metric)
Daytime temperature 20.8°C 69.4°F
Nightly temperature 12°C 53.6°F
Average temperature 16.4°C 61.5°F
Daily sunshine 8.7 hrs
Avg rainfall 35 mm 1.4 ins
Rainy days 4 days
Sea temperature 14.2°C 57.6°F
Humidity 71%
Windspeed 14.4kph 9 mph

On average October is the 6th driest month of the year in San Francisco with around 35mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.7 hours of sunshine per day.

October temperatures in San Francisco

San Francisco average temperature in October

October rainfall

San Francisco average rain in October

October hourly sunshine

San Francisco average rain in October

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Francisco in October 2025.

Other monthly averages

Best places to visit in October

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

San Francisco weather stats

San Francisco weather statistics
Hottest month: September 21.4°C 70.5°F
Driest month: July 1mm 0ins
Sunniest month: April 11hrs
Coldest month: January 13.2°C 55.8°F
Wettest month: January 125mm 4.9ins
Map showing location of San Francisco (37.77493, -122.41942) San Francisco map pin © Google

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