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August Weather in Jamestown, United States

Last updated: June 24, 2025

In August, the average temperature in Jamestown, United States is a pleasant 24°C (76°F). Expect a range that can dip as low as 14°C (57°F) and soar up to 36°C (98°F). With an average humidity of 74%, it feels quite warm and humid. Keep in mind that precipitation is likely, with about 138 mm (5.4 in) falling over 16 days throughout the month.

August Temperature in Jamestown

In August in Jamestown, the average temperature is 24°C (76°F), with a maximum that can reach 36°C (98°F) and a minimum that can drop to 14°C (57°F). This makes Jamestown a comfortable destination for travelers, suitable for both warm activities and cooler evenings.

August Weather in Jamestown: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Jamestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jamestown, August typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (98°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec394451576873777571614744
Data source: Temperature data for Jamestown generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Jamestown

In Jamestown in August, the precipitation amount is 138 mm (5.4 in), falling over a span of 16 days.

August Precipitation Trends in Jamestown

The chart displays monthly precipitation patterns in Jamestown, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Jamestown, August typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec10018815215514114213713812113374144
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Jamestown

In Jamestown in August, humidity is 74%. With an average temperature of 24°C (76°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel a bit sticky and requiring plenty of hydration as you explore.

August Average Humidity in Jamestown

This chart illustrates the average monthly humidity levels in Jamestown, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Jamestown is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Jamestown

In Jamestown in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Jamestown.

Maximum UV Index Levels in Jamestown for August

The chart shows the monthly maximum UV Index (UVI) for Jamestown in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Jamestown typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Jamestown August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Jamestown Compares to Other Months

Weather in Jamestown varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Jamestown, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Jamestown, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)100 mm (3.9 inches)87%moderate
February Weather7°C (44°F)188 mm (7.4 inches)86%high
March Weather10°C (51°F)152 mm (6.0 inches)86%high
April Weather14°C (58°F)155 mm (6.1 inches)82%very high
May Weather20°C (68°F)141 mm (5.6 inches)82%extreme
June Weather23°C (74°F)142 mm (5.6 inches)83%extreme
July Weather25°C (78°F)137 mm (5.4 inches)80%extreme
August Weather24°C (76°F)138 mm (5.4 inches)74%very high
September Weather22°C (72°F)121 mm (4.8 inches)71%very high
October Weather16°C (62°F)133 mm (5.2 inches)78%high
November Weather8°C (47°F)74 mm (2.9 inches)88%moderate
December Weather6°C (44°F)144 mm (5.7 inches)88%moderate

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