Average Weather during January in San Francisco (California), United States of America

The average minimum temperature (usually the minimum temperature is noted during the night) in San Francisco in January is 7.0°C (44.6°F). The amount of rain in January is high with an average of 111mm (4.4in). The average maximum daytime temperature lies around 14.0°C (57.2°F). This makes January the coldest month of the year. The sun will occasionally show itself with 185 hours of sunshine during the whole month.


So what to wear in January? Visitors traveling to San Francisco should plan on bringing a totally waterproof rain jacket since it will often be raining. Also plan on bringing your warm clothes, it can be a bit chilly during this period. With a water temperature of around 12.0°C (53.6°F), there is no need to bring your swimwear.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in January look at the numbers below.

Monthly Averages

Show in Celsius

Min Temperature 44 °F
Max Temperature 57 °F
Water Temperature 53 °F
Chance of Rain 40%
Precipitation 4 in
Rainy Days 12
Sunshine Hours 185

Where to stay in San Francisco

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

More Climate Information For San Francisco

Weather and Climate offers all the information you need to know about the climate in San Francisco.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in United States of America and climate and forecast data for all other countries in the world.