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August Weather in Jamestown, United States

Last updated: June 24, 2025

In August, the average temperature in Jamestown, United States hovers around 25°C (78°F). Expect a range that dips to a cool 12°C (54°F), but can soar to a scorching 40°C (105°F). Fortunately, precipitation is minimal, with 0 mm (0.0 in) recorded over 0 days, and an average humidity level of 54% keeps the atmosphere comfortable.

August Temperature in Jamestown

In August in Jamestown, the average temperature is 25°C (78°F), with maximums reaching 40°C (105°F) and minimums dropping as low as 12°C (54°F). This makes Jamestown an ideal destination for travelers seeking warm weather with comfortable 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 25°C (78°F), with highs reaching up to 40°C (105°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec464751576372787772625246
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 0 mm (0.0 in) during 0 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 0 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec183180197834940144489148
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 54%. With an average temperature of 25°C (78°F), this humidity feels like a warm, balmy embrace, making it ideal for leisurely strolls and outdoor adventures, but travelers may want to stay hydrated and take breaks in the shade to fully enjoy the experience.

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 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3589111111109743
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 Weather8°C (46°F)183 mm (7.2 inches)82%moderate
February Weather8°C (47°F)180 mm (7.1 inches)84%moderate
March Weather10°C (51°F)197 mm (7.7 inches)82%very high
April Weather14°C (57°F)83 mm (3.3 inches)78%very high
May Weather17°C (63°F)49 mm (1.9 inches)71%extreme
June Weather22°C (73°F)4 mm (0.1 inches)64%extreme
July Weather26°C (79°F)0 mm (0.0 inches)58%extreme
August Weather25°C (78°F)0 mm (0.0 inches)54%very high
September Weather22°C (72°F)4 mm (0.2 inches)55%very high
October Weather16°C (62°F)44 mm (1.7 inches)62%high
November Weather11°C (52°F)89 mm (3.5 inches)78%moderate
December Weather8°C (46°F)148 mm (5.8 inches)80%moderate

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