San Francisco January weather
San Francisco, United States · January
Mild temperatures, but rain + wind can feel colder than expected
January is one of the more rain-prone months in San Francisco. Temperatures are usually mild, but wind and wet conditions can feel sharply cool.
On windy rain days, a rain shell often works better than an umbrella, and wet pavement makes footwear matter.
January averages at a glance
Average low
around 7–9°C
Average high
around 13–15°C
Average precipitation
around 80–120 mm
Rainy days
about 8–12 days
What to wear in January in San Francisco
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Light rain shell + layers works well.
- • A sweater/hoodie layer helps in wind.
- • Shoes that handle wet pavement help.
Travel tips for visiting San Francisco in January
- • Bridges and waterfront routes amplify wind chill.
- • Rain clusters can slow transit timing—keep buffer time.
January weather in San Francisco — FAQ
Q. Is January cold?
A. Usually mild, but rain and wind can make it feel quite cold.
Q. Does it rain often?
A. It’s among the wetter months, though totals vary year to year.
Explore San Francisco
These pages are connected so you can compare conditions and decide for yourself.