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Washington weather in August 2025
Expect 86°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Washington in August. Check more long-term weather averages for Washington in August before you book your next holiday to D.C. in 2025/2026.
- 8686°F max day temperature
- 8 hours of sunshine per day
- 99 days with some rainfall
- 6868°F min night temperature
- 1414 hours of daylight per day
- HHigh heat & humidity
- 4.14.1 inches of monthly rainfall
- 88 (Very High) UV index
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Recommended for D.C.
The August weather guide for D.C., represented by Washington, (Washington) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
More about the USA
How hot is it in Washington in August?
Daytime temperatures usually reach 86°F in Washington in August with high heat and humidity, falling to 68°F at night.
How sunny is it in Washington in August?
There are normally 8 hours of bright sunshine each day in Washington in August - that's 62% of daylight hours.
Does it rain in Washington in August?
There are usually 9 days with some rain in Washington in August and the average monthly rainfall is 4.1 inches.
What is the chance of a hurricane in Washington in August?
On average less than 1 day in August in Washington is likely to be affected by the passage of one or more tropical storms.
Washington August sunrise & sunset times
Browse the sunrise and sunset times for Washington in August 2025. Select a month to view Washington sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 05:09 | 19:19 |
Saturday, 16th August 2025 | 05:23 | 19:01 |
Sunday, 31st August 2025 | 05:36 | 18:39 |
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