Average humidity in San Diego (California)
The mean monthly relative humidity over the year in San Diego (California), the United States of America.

- On average, July is the most humid month, at 75.0%.
- On average, January is the least humid month, at 64.0%.
- The average annual percentage of humidity is: 69%
Weather Forecasts for San Diego (California)
partly cloudy and no rain
broken clouds and no rain
clear and no rain