June Weather in Washington, United States

Last updated: June 24, 2025

In June, the average temperature in Washington, United States is a pleasant 14°C (57°F). Visitors can expect temperatures to range from a cool 6°C (43°F) at night to a warm 24°C (75°F) during the day. The region sees about 90 mm (3.5 in) of precipitation over 11 days, contributing to an average humidity of 79%. Prepare for a mix of enjoyable weather and occasional showers!

June Temperature in Washington

In June in Washington, the average temperature is 14°C (57°F). Maximums can reach 24°C (75°F) and minimums can be as low as 6°C (43°F). This moderate climate makes it a perfect time for travelers to explore the outdoors and enjoy local attractions.

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 14°C (57°F), with highs reaching up to 24°C (75°F) and lows dropping to around 6°C (43°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 amounts to 90 mm (3.5 in) over the course of 11 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 90 mm (3.5 inches) of precipitation spread over approximately 11 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 79%. With an average temperature of 14°C (57°F), this humidity feels like a warm, sticky embrace that can make even short strolls feel exhausting, creating a sense of heaviness in the air that might dampen your adventurous spirit while exploring.

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 79%, 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 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 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 9, which falls under the very high 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 (24°F)	44 mm (1.7 inches)	91%	low
February Weather	-5°C (23°F)	56 mm (2.2 inches)	91%	moderate
March Weather	-1°C (30°F)	61 mm (2.4 inches)	87%	moderate
April Weather	2°C (36°F)	90 mm (3.5 inches)	87%	high
May Weather	7°C (45°F)	83 mm (3.3 inches)	82%	very high
June Weather	14°C (57°F)	90 mm (3.5 inches)	79%	very high
July Weather	20°C (68°F)	76 mm (3.0 inches)	75%	very high
August Weather	20°C (68°F)	87 mm (3.4 inches)	76%	very high
September Weather	17°C (62°F)	85 mm (3.4 inches)	79%	high
October Weather	11°C (51°F)	114 mm (4.5 inches)	83%	moderate
November Weather	3°C (38°F)	67 mm (2.6 inches)	86%	moderate
December Weather	-1°C (30°F)	70 mm (2.8 inches)	87%	low