July Weather in Charlestown, United States

Last updated: June 24, 2025

In July, the average temperature in Charlestown, United States hovers around 26°C (78°F), making it a warm destination. Expect lows of 15°C (60°F) and highs reaching up to 35°C (95°F). During this month, precipitation averages 95 mm (3.8 in) across approximately 12 days, contributing to a relatively high average humidity of 79%. Perfect for those who enjoy a tropical climate!

July Temperature in Charlestown

In July in Charlestown, the average temperature is 26°C (78°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 15°C (60°F). This pleasant climate makes Charlestown an ideal destination for travelers seeking warm weather and outdoor activities.

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

The chart illustrates July temperature patterns in Charlestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charlestown, July typically has an average temperature of 26°C (78°F), with highs reaching up to 35°C (95°F) and lows dropping to around 15°C (60°F).

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

July Precipitation in Charlestown

In Charlestown in July, the precipitation amount is 95 mm (3.8 in) spread over 12 days.

July Precipitation Trends in Charlestown

The chart displays monthly precipitation patterns in Charlestown, 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 Charlestown, July typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 12 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 Charlestown

In Charlestown in July, humidity is 79%. With an average temperature of 26°C (78°F), this humidity feels like a tropical blanket enveloping you, making outdoor activities less comfortable for traveling.

July Average Humidity in Charlestown

This chart illustrates the average monthly humidity levels in Charlestown, 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 Charlestown is approximately 79%, 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 Charlestown

In Charlestown 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 Charlestown.

Maximum UV Index Levels in Charlestown for July

The chart shows the monthly maximum UV Index (UVI) for Charlestown 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 Charlestown typically reaches 10, which falls under the very high exposure category.

Data source: Charlestown 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 Charlestown Compares to Other Months

Weather in Charlestown varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Charlestown, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Charlestown, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	85 mm (3.3 inches)	87%	moderate
February Weather	4°C (39°F)	120 mm (4.7 inches)	85%	moderate
March Weather	8°C (47°F)	134 mm (5.3 inches)	86%	high
April Weather	13°C (56°F)	137 mm (5.4 inches)	84%	very high
May Weather	19°C (67°F)	128 mm (5.1 inches)	79%	very high
June Weather	24°C (75°F)	145 mm (5.7 inches)	82%	extreme
July Weather	26°C (78°F)	95 mm (3.8 inches)	79%	very high
August Weather	24°C (76°F)	96 mm (3.8 inches)	70%	very high
September Weather	22°C (72°F)	104 mm (4.1 inches)	69%	very high
October Weather	16°C (60°F)	99 mm (3.9 inches)	76%	high
November Weather	7°C (45°F)	92 mm (3.6 inches)	88%	moderate
December Weather	5°C (40°F)	104 mm (4.1 inches)	87%	moderate