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August Weather in Jamestown, United States

Last updated: June 24, 2025

In Jamestown, United States, the average temperature in August is a pleasant 23°C (74°F), with lows dipping to 12°C (53°F) and highs soaring to 33°C (92°F). During this month, expect an average precipitation of 87 mm (3.4 in) over approximately 13 days, accompanied by a comfortable average humidity of 73%.

August Temperature in Jamestown

In August in Jamestown, the average temperature is 23°C (74°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 12°C (53°F). This makes Jamestown an ideal destination for travelers seeking pleasant weather and a range of outdoor activities.

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 23°C (74°F), with highs reaching up to 33°C (92°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec313443526472767369584236
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 87 mm (3.4 in) spread over 13 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 87 mm (3.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7911111611112513511487919598102
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 73%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket, making traveling a bit sweaty and heavy, but still pleasant if you stay hydrated and take breaks in the shade.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
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 Weather-1°C (31°F)79 mm (3.1 inches)88%moderate
February Weather1°C (35°F)111 mm (4.4 inches)88%moderate
March Weather6°C (43°F)116 mm (4.6 inches)87%high
April Weather11°C (52°F)111 mm (4.4 inches)85%very high
May Weather18°C (64°F)125 mm (4.9 inches)81%very high
June Weather22°C (72°F)135 mm (5.3 inches)82%very high
July Weather24°C (76°F)114 mm (4.5 inches)81%very high
August Weather23°C (74°F)87 mm (3.4 inches)73%very high
September Weather21°C (69°F)91 mm (3.6 inches)73%very high
October Weather14°C (58°F)95 mm (3.8 inches)78%high
November Weather6°C (42°F)98 mm (3.9 inches)89%moderate
December Weather2°C (37°F)102 mm (4.0 inches)87%moderate

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