July Weather in Jamestown, United States

Last updated: June 24, 2025

The average temperature in Jamestown, United States during July is a pleasant 22°C (72°F). Expect a minimum of 9°C (48°F) and a maximum of 35°C (95°F). With precipitation totaling 87 mm (3.4 in) over 8 days, you might want to carry an umbrella! The average humidity sits at 76%, ensuring a warm, tropical feel throughout the month.

July Temperature in Jamestown

In July, in Jamestown, the average temperature is 22°C (72°F). The maximum can reach 35°C (95°F), while the minimum can be as low as 9°C (48°F). This makes it a comfortable time to visit, ideal for outdoor activities and exploring the local sights.

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 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 9°C (48°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 87 mm (3.4 in), which occurs over a span of 8 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 87 mm (3.4 inches) of precipitation spread over approximately 8 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 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

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 76%, 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 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 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 9, which falls under the very high 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	-11°C (12°F)	17 mm (0.7 inches)	87%	low
February Weather	-13°C (10°F)	19 mm (0.8 inches)	89%	moderate
March Weather	-3°C (27°F)	25 mm (1.0 inches)	82%	moderate
April Weather	4°C (39°F)	38 mm (1.5 inches)	79%	very high
May Weather	13°C (55°F)	56 mm (2.2 inches)	74%	very high
June Weather	20°C (68°F)	83 mm (3.2 inches)	78%	very high
July Weather	22°C (72°F)	87 mm (3.4 inches)	76%	very high
August Weather	20°C (68°F)	104 mm (4.1 inches)	77%	very high
September Weather	15°C (60°F)	71 mm (2.8 inches)	72%	high
October Weather	6°C (43°F)	74 mm (2.9 inches)	74%	moderate
November Weather	-2°C (29°F)	19 mm (0.7 inches)	85%	moderate
December Weather	-7°C (19°F)	35 mm (1.4 inches)	84%	low