July Weather in Washington, United States

Last updated: June 24, 2025

In Washington, United States, the average temperature in July hovers around 26°C (79°F), with a minimum of 14°C (57°F) and a maximum reaching 36°C (98°F). Expect 89 mm (3.5 in) of precipitation spread over about 10 days, contributing to an average humidity of 79%. Whether you're soaking up the sun or seeking shelter from the rain, be prepared for a diverse climate this month!

July Temperature in Washington

In July in Washington, the average temperature is 26°C (79°F). Maximum can reach 36°C (98°F) and minimum can be as low as 14°C (57°F). It's a great time for travelers seeking warm weather while still having the option to enjoy cooler evenings.

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

The chart illustrates July temperature patterns in Washington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Washington, July typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (98°F) and lows dropping to around 14°C (57°F).

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

July Precipitation in Washington

In Washington in July, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

July Precipitation Trends in Washington

The chart displays monthly precipitation patterns in Washington, 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 Washington, July typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 10 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 Washington

In Washington in July humidity is 79%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel exhausting. Travelers should be prepared for a heavy air that clings to the skin, making hydration essential while navigating the sights and sounds of the city.

July Average Humidity in Washington

This chart illustrates the average monthly humidity levels in Washington, 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 Washington 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 Washington

In Washington 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 Washington.

Maximum UV Index Levels in Washington for July

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

Data source: Washington 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 Washington Compares to Other Months

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

This table compares monthly weather conditions in Washington, 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 (33°F)	93 mm (3.7 inches)	87%	moderate
February Weather	3°C (37°F)	114 mm (4.5 inches)	85%	moderate
March Weather	8°C (47°F)	139 mm (5.5 inches)	86%	high
April Weather	13°C (55°F)	123 mm (4.8 inches)	84%	very high
May Weather	20°C (67°F)	133 mm (5.2 inches)	79%	very high
June Weather	24°C (76°F)	118 mm (4.6 inches)	82%	extreme
July Weather	26°C (79°F)	89 mm (3.5 inches)	79%	very high
August Weather	24°C (76°F)	91 mm (3.6 inches)	70%	very high
September Weather	22°C (72°F)	71 mm (2.8 inches)	69%	very high
October Weather	16°C (60°F)	97 mm (3.8 inches)	76%	high
November Weather	7°C (44°F)	102 mm (4.0 inches)	88%	moderate
December Weather	4°C (39°F)	104 mm (4.1 inches)	87%	moderate