Best time to visit · California
Best time to visit San Francisco
San Francisco averages 89 just-right days a year; June, September and October are best. Most other days miss by being too cool.
(70 to 80°F, dry, sunny)
(45 to 65°F, dry)
(80 to 92°F, bright)
San Francisco weather by month
Bars: share of each month's days that are just right (number = days). Below: average daily high. Outlined bars are the best months.
- Just right 89
- Too cool 212
- Too hot 23
- Too muggy 7
- Too gray 33
When to visit San Francisco
The best time to visit San Francisco for comfortable weather is June, September and October, when 51%, 50% and 48% of days are just right. January, February, March, April, November and December are mostly too cool, with average highs of 56 to 65°F.
Climate table
| Month | Avg high | Dew point | Cloud cover | Just-right days |
|---|---|---|---|---|
| January | 56°F | 44°F | 64% | 0 |
| February | 60°F | 44°F | 63% | 0 |
| March | 63°F | 44°F | 56% | 1 |
| April | 65°F | 46°F | 47% | 3 |
| May | 69°F | 48°F | 40% | 9 |
| June | 73°F | 51°F | 35% | 15 |
| July | 75°F | 53°F | 41% | 14 |
| August | 76°F | 53°F | 41% | 14 |
| September | 76°F | 53°F | 35% | 15 |
| October | 73°F | 48°F | 39% | 15 |
| November | 64°F | 46°F | 52% | 2 |
| December | 57°F | 42°F | 61% | 0 |
How San Francisco compares
With 89 just-right days, San Francisco beats the median of America's 150 largest cities (33 days). It ranks #6 of 16 California places on Goldilocks Map. On muggy days: 7. On gray days: 33.
See every California city ranked →
Places with a similar climate
Nearby
San Francisco averages 89 just-right days a year (70 to 80°F highs, dry, mostly sunny), according to Goldilocks Map: https://goldilocksmap.com/us/california/san-francisco/Set your own perfect weather on the map →
Numbers are expected days in a typical year from 1991 to 2020 climate normals (TerraClimate; cloud cover from CHELSA), on a grid about 35 km wide. Checked against 10 years of daily records at 28 NOAA weather stations: typical error about 10 days a year. How it works. Updated 2026-10-07.