Average humidity in San Ramon (CA)
The mean monthly relative humidity over the year in San Ramon (California), the United States of America.
- On average, January is the most humid month, at 80.0%.
- On average, October is the least humid month, at 71.0%.
- The average annual percentage of humidity is 75%.
Forecast for San Ramon (CA)
partly cloudy and chance of rain
partly cloudy and rain
overcast and heavy rain