Average humidity in Half Moon Bay (CA)

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

Half Moon Bay's humidity levels vary throughout the year. The highest levels occur in January, reaching 80% (very high), while the lowest is recorded in June at 71%.

Throughout the year, the average humidity in Half Moon Bay is 75%.

Humidity plays an important role in how temperatures are felt. During the warmest month, September, the maximum average temperature is around 22°C (72°F). Combined with high humidity during this period, the temperature can feel even warmer than the thermometer shows.

During the coldest month, December, the maximum average temperature is around 15°C (59°F). This period has high humidity. Check out our detailed temperature page for more information.