Average humidity in San Diego (CA)
On this page you find more information about the monthly relative humidity over the year in San Diego (California), the United States of America.
San Diego shows variation in the level of humidity throughout the year. The highest humidity is noted duing July, it reaches up to 75%, which is categorized as high. On the other hand, the lowest humidity is recorded in January, with levels falling to 64%.
The average humidity in San Diego is approximately 69%, which is high.
Humidity is an essential factor in how you experience temperature. During the warmest month, September, the temperature is around 26°C. When this period is accompanied by high humidity, it results in a higher perceived temperature. This can cause greater discomfort, while in winter it can make the air feel much colder, adding to the cooler temperatures. Check out our detailed temperature page for more information.
Forecast for San Diego (CA)
Sat Dec 21
18°C | 9°C
NW 
4 m/s
4 m/s
almost clear and no rain
Sun Dec 22
19°C | 9°C
W 3 m/s
3 m/s
broken clouds and no rain
Mon Dec 23
19°C | 11°C
W 3 m/s
3 m/s
almost clear and no rain
