Washington, D. C. Weather in August

What's the weather like in Washington, D. C. (Washington, D.C.) in August 2024?

The climate in Washington, D. C. during August can be summarized as hot, humid and damp.

August is in the summer in Washington, D. C. and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 20°C (67°F) is normal.

Washington, D. C. weather averages (imperial / metric)
Daytime temperature 30°C 85.9°F
Nightly temperature 19.5°C 67°F
Average temperature 24.7°C 76.5°F
Daily sunshine 9.1 hrs
Avg rainfall 103 mm 4.1 ins
Rainy days 9 days
Sea temperature 24.2°C 75.6°F
Humidity 71%
Windspeed 12.2kph 8 mph

On average August is the wettest month of the year in Washington, D. C. with around 103mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

August temperatures in Washington, D. C.

Washington, D. C. average temperature in August

August rainfall

Washington, D. C. average rain in August

August hourly sunshine

Washington, D. C. average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Washington, D. C. in August 2024.