Experience the mild Mediterranean climate of San Francisco, where temperatures typically range from 48°F to 63°F during the best visiting season, late spring to early fall. Known as the 'foggiest' city in America, an iconic marine layer often blankets the city, adding a unique charm. For an unforgettable experience, explore the Golden Gate Park under the ethereal foggy mornings, then warm up with a cup of local coffee at one of the vibrant cafes.
Today's Forecast
5-Day Forecast
San Francisco Climate & Weather Averages
San Francisco is warmest in September, when daytime highs average 70°F, and coldest in December at around 56°F. The wettest month is December. The table below shows the monthly averages for San Francisco, based on recorded data from 2015–2024.
| Month | Avg High | Avg Low | Rainfall |
|---|---|---|---|
| Jan | 57° | 46° | 4.9 in |
| Feb | 59° | 46° | 3.5 in |
| Mar | 59° | 48° | 3.7 in |
| Apr | 61° | 50° | 1.3 in |
| May | 63° | 52° | 0.7 in |
| Jun | 67° | 55° | 0.1 in |
| Jul | 67° | 56° | 0 in |
| Aug | 68° | 58° | 0 in |
| Sep | 70° | 58° | 0.1 in |
| Oct | 69° | 55° | 1.1 in |
| Nov | 62° | 50° | 2.3 in |
| Dec | 56° | 46° | 5.1 in |
Best time to visit: June–August offers the most comfortable conditions, with daytime highs around 67°F. Pack light, breathable layers and a light waterproof — San Francisco sees rain year-round, peaking in December. For the coldest spell around December, bring a warm coat.
Source: Open-Meteo ERA5 archive. Averages computed from daily records.