San Francisco weather by month
The best time to visit San Francisco, United States is August. Pick a month for full climate normals and a verdict.
- Januarycool, rainy, clean air72tier B
- Februarycool, a little rain, very humid77tier B
- Marchcool, rainy, clean air79tier B
- Aprilnice, dry, clean air87tier A
- Maynice, dry, clean air89tier A
- Junenice, dry, clean air94tier S
- Julynice, dry, clean air95tier S
- Augustwarm, dry, clean air98tier S
- Septemberwarm, dry, clean air97tier S
- Octobernice, dry, clean air92tier S
- Novembernice, dry, clean air82tier A
- Decembercool, rainy, clean air68tier C