Is Washington hot in August?
Days are typically hot at 30.7°C, while nights average 21.4°C.
United States · 1991–2020 normal
Washington in
August.
Typical August weather in Washington: 30.7°C by day, 21.4°C at night, 83 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high30.7°C
Typical low21.4°C
Rain83 mm
Wet days7
In the year-round weather comparison, August scores 56 out of 100 (May leads the year at 82). Daylight is calculated as 13 h 41 from latitude 38.90°.
August at a glance
What is Washington like in August?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 83 mm across about 7 wet days.
How much daylight is there?
There are about 13 h 41 between sunrise and sunset at mid-month, calculated from the place latitude.
Is August a good time to visit?
August ranks 6 of 12 in our weather comparison; May ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4140963
- NOAA station
- USW00013743 · WASHINGTON REAGAN NATL AP
- Station distance
- 5.3 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Washington is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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