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Washington Weather in August

With daytime temperatures of 37°C (99°F) and nighttime lows of 22°C (72°F), August in Washington brings extremely high temperatures during the day. Some rainfall is to be expected during the month.

Rainfall in Washington in August

Past climate data indicates that roughly 4 days will see rain, totalling around 21 mm (0.8 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Washington in August

Temperatures in Washington in August top out at 37°C (99°F) and drop to 22°C (72°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.

If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Washington. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

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

Washington Temperature in August

Min TemperatureMin Temperature 22°C (72°F)  
Max TemperatureMax Temperature 37°C (99°F)  
Chance of RainChance of Rain 15%  
PrecipitationPrecipitation 21 mm (0.8 in)  
Rainy daysRainy days 4 days  

Best Places in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Washington in August

Hot weather in August means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Pack a light rain jacket or compact umbrella for occasional showers.

What To Do in Washington in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Camping
10/10

Select a Month

Check the conditions for any month of the year.

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

More climate data for Washington