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July Weather in Jamestown, United States

Last updated: June 24, 2025

In Jamestown, United States, the average temperature in July hovers around 23°C (73°F). You'll experience a comfortable range with a minimum of 12°C (54°F) and a maximum that can soar up to 34°C (93°F). However, be prepared for some rain, as the area receives about 138 mm (5.4 in) of precipitation over 15 days. With an average humidity of 82%, the air can feel quite humid, perfect for those who enjoy a tropical ambiance!

July Temperature in Jamestown

In July in Jamestown, the average temperature is 23°C (73°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as 12°C (54°F). This mild climate makes Jamestown an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates July 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, July typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec283138486068737166554034
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.

July Precipitation in Jamestown

In Jamestown in July, the total precipitation amount is 138 mm (5.4 in) recorded over the course of 15 days.

July Precipitation Trends in Jamestown

The chart displays monthly precipitation patterns in Jamestown, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Jamestown, July typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec96102111130140138138102100124105102
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Jamestown

In Jamestown in July, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

July Average Humidity in Jamestown

This chart illustrates the average monthly humidity levels in Jamestown, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Jamestown is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%87%81%83%82%76%77%82%89%86%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Jamestown

In Jamestown in July, 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 July

The chart shows the monthly maximum UV Index (UVI) for Jamestown in July, 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 July, the maximum UV index in Jamestown typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Jamestown July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)96 mm (3.8 inches)88%moderate
February Weather-1°C (31°F)102 mm (4.0 inches)88%moderate
March Weather3°C (38°F)111 mm (4.4 inches)87%high
April Weather9°C (48°F)130 mm (5.1 inches)87%very high
May Weather15°C (60°F)140 mm (5.5 inches)81%very high
June Weather20°C (68°F)138 mm (5.4 inches)83%very high
July Weather23°C (73°F)138 mm (5.4 inches)82%very high
August Weather21°C (71°F)102 mm (4.0 inches)76%very high
September Weather19°C (66°F)100 mm (3.9 inches)77%very high
October Weather13°C (55°F)124 mm (4.9 inches)82%high
November Weather4°C (40°F)105 mm (4.1 inches)89%moderate
December Weather1°C (34°F)102 mm (4.0 inches)86%low

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