Temperature in Washington State in August

Daytime highs, nighttime lows and the warmest cities in Washington State, the United States of America this August.

Washington State, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in August ranging from 11°C (52°F) in Mount Rainier National Park to 32°C (90°F) in Pasco. Nighttime temperatures generally drop to 15°C (59°F) in Pasco and -1°C (30°F) in Mount Rainier National Park . The month of August is in the summer season. In Washington State, the United States of America, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

What is the temperature of the different cities in Washington State, the United States of America in August?

Discover the typical August temperatures for the most popular locations of Washington State on the map below. Detailed insights are just a click away.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Washington State, check out our Washington State's climate page.

See also: Washington State weather by month.

Best Places to Visit in Washington State in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Washington State.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in Washington State

Washington State temperatures in August: frequently asked questions

How hot does it get in Washington State, the United States of America in August?

Average daytime highs in Washington State, the United States of America during August reach about 25°C (77°F) in Seattle.

How cold does it get at night in Washington State, the United States of America in August?

Nighttime temperatures in Seattle typically drop to around 14°C (57°F) in August.

What is the warmest city in August in Washington State, the United States of America?

Data insights from our comprehensive database indicate that Pasco is the city with the highest warmth. Daytime peaks average near 32°C (90°F), while the nights are characterized by a low temperature close to 15°C (59°F).

What is the coldest city in August in Washington State, the United States of America?

When looking through our records, we find that Mount Rainier National Park stands out as the coolest city in Washington State, the United States of America for the month of August. Daytime highs average 11°C (52°F) and it cools down to about -1°C (30°F) at night.

How much sun does Washington State, the United States of America get in August?

Seattle enjoys approximately 280 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

Interested in more climate information?

We have much more information about the climate in Washington State.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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