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May Weather in Jamestown, United States

Last updated: June 24, 2025

In Jamestown, United States, the average temperature in May hovers around 20°C (68°F), providing a comfortable climate for outdoor activities. However, be prepared for a wide temperature range, with minimums dipping to 1°C (34°F) and soaring highs of 33°C (92°F). During this month, expect 141 mm (5.6 in) of precipitation over 13 days, and with an average humidity of 82%, it's advisable to stay hydrated and enjoy the lush surroundings!

May Temperature in Jamestown

In May in Jamestown, the average temperature is 20°C (68°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 1°C (34°F). This variability makes it essential for travelers to pack versatile clothing to accommodate both warm days and cooler nights.

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

The chart illustrates May 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, May typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (34°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.

May Precipitation in Jamestown

In Jamestown in May, the precipitation amount is 141 mm (5.6 in) spread over 13 days.

May Precipitation Trends in Jamestown

The chart displays monthly precipitation patterns in Jamestown, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Jamestown, May typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10018815215514114213713812113374144
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Jamestown

In Jamestown in May humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

May Average Humidity in Jamestown

This chart illustrates the average monthly humidity levels in Jamestown, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Jamestown is approximately 82%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Jamestown

In Jamestown in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Jamestown.

Maximum UV Index Levels in Jamestown for May

The chart shows the monthly maximum UV Index (UVI) for Jamestown in May, 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 May, the maximum UV index in Jamestown typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Jamestown May 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 May 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 May’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 May’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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