July Weather in Jamestown, United States

Last updated: June 24, 2025

In July, the average temperature in Jamestown, United States hovers around 26°C (79°F), with lows reaching a chilly 13°C (55°F) and highs soaring up to a sizzling 39°C (103°F). Expect 0 mm (0.0 in) of precipitation over 0 days, making it a remarkably dry month. With an average humidity of 58%, the climate feels quite comfortable, perfect for outdoor adventures!

July Temperature in Jamestown

In July in Jamestown, the average temperature is 26°C (79°F). Maximums can reach 39°C (103°F), while minimums can dip as low as 13°C (55°F). This diverse temperature range makes Jamestown an ideal destination for travelers seeking both warmth and cool respite.

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 26°C (79°F), with highs reaching up to 39°C (103°F) and lows dropping to around 13°C (55°F).

Data source: Temperature data for Jamestown generated using information from the Copernicus Climate Change Service.

July Precipitation in Jamestown

In Jamestown in July, the precipitation amount is 0 mm (0.0 in) during 0 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 0 mm (0.0 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Jamestown

In Jamestown in July, humidity is 58%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making outdoor activities enjoyable but slightly muggy, an ideal time to explore the local attractions while staying hydrated.

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 58%, offering insight into how humid the weather typically is during this month.

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 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 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 11, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	183 mm (7.2 inches)	82%	moderate
February Weather	8°C (47°F)	180 mm (7.1 inches)	84%	moderate
March Weather	10°C (51°F)	197 mm (7.7 inches)	82%	very high
April Weather	14°C (57°F)	83 mm (3.3 inches)	78%	very high
May Weather	17°C (63°F)	49 mm (1.9 inches)	71%	extreme
June Weather	22°C (73°F)	4 mm (0.1 inches)	64%	extreme
July Weather	26°C (79°F)	0 mm (0.0 inches)	58%	extreme
August Weather	25°C (78°F)	0 mm (0.0 inches)	54%	very high
September Weather	22°C (72°F)	4 mm (0.2 inches)	55%	very high
October Weather	16°C (62°F)	44 mm (1.7 inches)	62%	high
November Weather	11°C (52°F)	89 mm (3.5 inches)	78%	moderate
December Weather	8°C (46°F)	148 mm (5.8 inches)	80%	moderate