Weather by month
San Francisco
California
A city that runs its summer in the fall, wraps its July in fog, and squeezes nearly all its rain into a handful of winter months.
The best time to come
September and October are San Francisco's actual summer — warm, clear, fog-free, and the bay at its friendliest. Skip July if you were picturing beach weather; bring the same jacket whenever you come.
The year at a glance
| Month | Highs / lows | Temperature range | Wet days | Water |
|---|---|---|---|---|
| January | 58° / 47° | 8 | 54° | |
| February | 60° / 48° | 8 | 54° | |
| March | 62° / 49° | 7 | 54° | |
| April | 63° / 50° | 4 | 56° | |
| May | 64° / 51° | 2 | 57° | |
| June | 67° / 53° | 1 | 60° | |
| July | 66° / 54° | 0 | 61° | |
| August | 68° / 56° | 0 | 64° | |
| September ● | 70° / 56° | 0 | 65° | |
| October ● | 70° / 54° | 2 | 64° | |
| November | 64° / 51° | 5 | — | |
| December | 58° / 47° | 8 | 55° |
San Francisco facts
- Sits at about 150 ft above sea level.
- 22.9 in of rain in a typical year, with December the wettest month.
- September runs hottest (70° afternoons); January nights are the coldest (47°).