San Francisco (CA) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in San Francisco (California). The numbers are calculated over a 30-year period to provide a reliable average.
- Most rainfall (rainy season) is seen in December.
- San Francisco has dry periods in May, June, July, August, September and October.
- On average, December is the wettest month with 112 mm of precipitation.
- On average, July is the driest month with 0 mm of precipitation.
- The average amount of annual precipitation is 469 mm.
Current rainfall in San Francisco (CA)
clear and no rain
clear and no rain
partly cloudy and no rain