Average humidity in Jamestown

On this page you find more information about the monthly relative humidity over the year in Jamestown (), Saint Helena.

Jamestown 's humidity levels vary throughout the year. The highest levels occur in August, reaching 76% (high), while the lowest is recorded in January at 62%.

Throughout the year, the average humidity in Jamestown is 70%.

Humidity plays an important role in how temperatures are felt. During the warmest month, March, the maximum average temperature is around 26°C (79°F). Combined with high humidity during this period, the temperature can feel even warmer than the thermometer shows.

During the coldest month, September, the maximum average temperature is around 21°C (70°F). This period has high humidity. Check out our detailed temperature page for more information.

Jamestown 3-Day Forecast

10-Day Forecast

More climate data for Jamestown

Temperature Rainfall Humidity

See the full Jamestown climate overview or explore weather in Saint Helena.

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