Best Time to Visit San Francisco
United States · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit San Francisco are July, August and September, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
San Francisco sees its warmest weather in September, when daytime highs average around 24°C, and its coolest in January (around 15°C).
Annual precipitation totals roughly 499mm — December is typically the wettest month (~105mm) and July the driest (~0mm).
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 37 days
1/ 37
days ≥2°C above normal
25°C
highest recorded · July 21
-3.9°C
avg anomaly · vs 30-year normal
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 15° / 7°C | 99mm | 🤔 Fair |
| February | 16° / 8°C | 101mm | 👍 Good |
| March | 17° / 9°C | 69mm | 👍 Good |
| April | 19° / 10°C | 35mm | 🌟 Great |
| May | 20° / 11°C | 12mm | 🌟 Great |
| June | 22° / 12°C | 4mm | 🌟 Great |
| July | 23° / 13°C | 0mm | 🌟 Great |
| August | 23° / 14°C | 1mm | 🌟 Great |
| September | 24° / 13°C | 2mm | 🌟 Great |
| October | 22° / 12°C | 20mm | 🌟 Great |
| November | 18° / 9°C | 52mm | 👍 Good |
| December | 15° / 7°C | 105mm | 🤔 Fair |
FAQ
- What is the best time to visit San Francisco?
- Based on 30 years of climate data, the most comfortable months to visit San Francisco are July, August and September, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in San Francisco?
- September is typically the hottest month in San Francisco, with average daytime highs around 24°C.
- What is the rainiest month in San Francisco?
- December is usually the wettest month, with around 105mm of precipitation.