Places › San Francisco, CA › January

San Francisco in January

A good month — score 77 of 100

Typical January days in San Francisco reach about 58°F with nights near 47°F.

What to pack for San Francisco in January

• A warm jacket for evenings and early starts.
• A waterproof shell — rain falls on about 11 days in a typical January.

Every packing line is triggered by a number on this page — the rules are on How we pick.

January vs. the alternatives

The whole year in San Francisco

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.