Best Time to Visit San Francisco, California (2026)
The best time to visit San Francisco is March through November, when average highs are 62-71°F with minimal rain. Avoid January when weather conditions are the least favorable for visiting.
Month-by-Month Weather Overview
| Month | High | Low | Rain | Snow | Score |
|---|---|---|---|---|---|
| Jan | 57°F | 46°F | 4.5" | — | 6/10 |
| Feb | 60°F | 48°F | 4" | — | 7/10 |
| Mar | 62°F | 49°F | 3.2" | — | 8/10 |
| Apr | 63°F | 50°F | 1.5" | — | 9/10 |
| May | 64°F | 51°F | 0.7" | — | 10/10 |
| Jun | 67°F | 53°F | 0.2" | — | 10/10 |
| Jul | 67°F | 54°F | 0" | — | 10/10 |
| Aug | 68°F | 55°F | 0.1" | — | 10/10 |
| SepBest | 71°F | 56°F | 0.2" | — | 10/10 |
| Oct | 70°F | 54°F | 1" | — | 10/10 |
| Nov | 63°F | 50°F | 2.5" | — | 9/10 |
| Dec | 57°F | 46°F | 4.3" | — | 6/10 |
Tourism score: 1-10 (higher = better for visiting). Based on temperature comfort, rainfall, and humidity.
When NOT to Visit San Francisco
January is the least ideal time to visit San Francisco. Conditions are less favorable for tourism, with highs of 57°F and 4.5" of rain.
Seasonal Breakdown
Spring
Spring brings mild weather to San Francisco, with highs around 63°F. Expect some rain (5.4" total) but increasingly pleasant days.
Summer
San Francisco has mild summers with highs around 67°F — comfortable for extended outdoor exploration.
Fall
Fall brings comfortable temperatures to San Francisco, with highs around 68°F. Often considered the best season to visit.
Winter
San Francisco has mild winters with highs around 58°F. No heavy coats needed — a light jacket will do.
What to Pack for September in San Francisco
- ✓Light layers
- ✓Sunglasses
- ✓Comfortable walking shoes
- ✓UV-protection sunglasses
Safety in San Francisco
While you're planning, San Francisco has a Very High Risk safety rating based on FBI crime data. See full safety report.
Frequently Asked Questions
What is the best month to visit San Francisco?
The best time to visit San Francisco is March through November, when highs average 62-71°F with comfortable temperatures and manageable rainfall. September scores highest for tourism at 10/10.
What is the weather like in San Francisco in September?
In September, San Francisco has average highs of 71°F and lows of 56°F. Expect 0.2" of rainfall and 72% humidity. Snow is not expected.
Does it snow in San Francisco?
No, San Francisco, California does not typically get snow. Winters stay mild with lows around 46°F.
How hot does San Francisco get?
The hottest month in San Francisco is September, with average highs of 71°F and lows of 56°F. Humidity averages 72%. Summers are warm but generally manageable.
What should I pack for San Francisco?
For the best time to visit (September): Light layers, Sunglasses, Comfortable walking shoes, UV-protection sunglasses. Adjust layers based on the season you're visiting.