August · United States
Best time to visit Washington DC in August Weather, crowds & prices
Weather in Washington DC in August
Average temperature 26°C, 98 mm of rain, about 25 days with 6+ hours of sunshine and 66% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
6.9/10
Ranked #6 of 12 months
- Avg temp
- 26°C
- Rainfall
- 98 mm
- Humidity
- 66%
- Days with 6h+ sun
- 25
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$ · Moderate Cost ($$)
August in Washington DC scores 6.9/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 26°C, 98 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
The National Mall lines up the Capitol, Smithsonian museums, and memorials within a walkable core.
August in Washington DC — middling scores, decent value
August averages 26°C (78°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 98 mm, so plan one flexible day in three; you still get about 25 days with 6+ hours of sunshine and 13.5 hours of daylight.
It scores 6.9/10 here, 6th of 12 months, against 8.5/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Figure on mid-season pricing, with this is one of the busiest months here.
Flexible dates? June scores 1.6 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Washington DC in August?
- In August, Washington DC averages 26°C, 98 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is August a good time to visit Washington DC?
- August earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Washington DC in August?
- Expect about 98 mm of rain in August. Average humidity is 66% and there are about 25 days with 6+ hours of sunshine.
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