Average humidity in San Ysidro (CA)

On this page you find more information about the monthly relative humidity over the year in San Ysidro (California), the United States of America.

San Ysidro shows variation in the level of humidity throughout the year. The highest humidity is noted duing July, it reaches up to 80%, which is categorized as very high.

On the other hand, the lowest humidity is recorded in November, with levels falling to 69%.

The average humidity in San Ysidro is approximately 75%, which is high.

Humidity is an essential factor in how you experience temperature. During the warmest month, September, the temperature is around 27°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.