June Weather in Washington, United States

Last updated: June 24, 2025

In June, the average temperature in Washington, United States hovers around 26°C (79°F), offering a warm climate for outdoor adventures. Expect temperatures to range from a cool 13°C (56°F) at night to a sweltering 37°C (100°F) during the day. With an average precipitation of 75 mm (3.0 in) spread over 8 days, you're likely to experience some refreshing rain. The air is quite humid, with an average of 82% humidity, so stay hydrated and enjoy the vibrant atmosphere!

June Temperature in Washington

In June, in Washington, the average temperature is 26°C (79°F). Maximums can reach 37°C (100°F), while minimums can drop as low as 13°C (56°F). This makes Washington an ideal destination for travelers seeking warm weather, but it's wise to pack for both hot days and cooler nights.

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

The chart illustrates June 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, June typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (100°F) and lows dropping to around 13°C (56°F).

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

June Precipitation in Washington

In Washington in June, the total precipitation amount is 75 mm (3.0 in) over the course of 8 days.

June Precipitation Trends in Washington

The chart displays monthly precipitation patterns in Washington, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Washington, June typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

June Humidity in Washington

In Washington in June, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

June Average Humidity in Washington

This chart illustrates the average monthly humidity levels in Washington, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Washington is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Washington

In Washington in June, 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 Washington.

Maximum UV Index Levels in Washington for June

The chart shows the monthly maximum UV Index (UVI) for Washington in June, 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 June, the maximum UV index in Washington typically reaches 11, which falls under the extreme exposure category.

Data source: Washington June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	49 mm (1.9 inches)	76%	moderate
February Weather	6°C (42°F)	52 mm (2.1 inches)	76%	high
March Weather	13°C (55°F)	99 mm (3.9 inches)	70%	very high
April Weather	16°C (60°F)	125 mm (4.9 inches)	72%	very high
May Weather	21°C (71°F)	149 mm (5.9 inches)	82%	very high
June Weather	26°C (79°F)	75 mm (3.0 inches)	82%	extreme
July Weather	28°C (83°F)	45 mm (1.8 inches)	80%	extreme
August Weather	28°C (82°F)	61 mm (2.4 inches)	72%	extreme
September Weather	24°C (76°F)	101 mm (4.0 inches)	64%	very high
October Weather	17°C (63°F)	107 mm (4.2 inches)	71%	high
November Weather	11°C (51°F)	30 mm (1.2 inches)	81%	moderate
December Weather	7°C (45°F)	37 mm (1.5 inches)	84%	moderate