June Weather in Washington, United States

Last updated: June 24, 2025

In Washington, United States during June, the average temperature is a warm 27°C (80°F). However, you can expect a temperature range that dips as low as 8°C (47°F) and peaks at a sizzling 40°C (105°F). Precipitation is minimal, with just 1 mm (0.0 in) over the course of 0 days, while the average humidity remains comfortably low at 34%. Enjoy the inviting climate!

June Temperature in Washington

In June in Washington, the average temperature is 27°C (80°F). Maximum temperatures can reach 40°C (105°F), while minimums can drop as low as 8°C (47°F). Be prepared for a wide range of temperatures during your travels!

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 27°C (80°F), with highs reaching up to 40°C (105°F) and lows dropping to around 8°C (47°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 precipitation amount is 1 mm (0.0 in) during a span of 0 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 1 mm (0.0 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Washington

In Washington in June, humidity is 34%. With an average temperature of 27°C (80°F), this humidity feels like a refreshing kiss of warmth, making it perfect for leisurely strolls and sightseeing adventures without feeling too sticky or uncomfortable.

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 34%, 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 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. 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 12, 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	3°C (38°F)	48 mm (1.9 inches)	80%	moderate
February Weather	5°C (41°F)	42 mm (1.7 inches)	82%	high
March Weather	9°C (49°F)	48 mm (1.9 inches)	72%	very high
April Weather	15°C (59°F)	12 mm (0.5 inches)	62%	very high
May Weather	19°C (67°F)	16 mm (0.6 inches)	45%	extreme
June Weather	27°C (80°F)	1 mm (0.0 inches)	34%	extreme
July Weather	29°C (85°F)	9 mm (0.3 inches)	30%	extreme
August Weather	28°C (83°F)	10 mm (0.4 inches)	31%	extreme
September Weather	24°C (75°F)	5 mm (0.2 inches)	47%	very high
October Weather	15°C (59°F)	13 mm (0.5 inches)	62%	high
November Weather	9°C (49°F)	29 mm (1.1 inches)	77%	moderate
December Weather	4°C (39°F)	35 mm (1.4 inches)	80%	moderate