Monthly climate ·Washington D.C. weather in August
In August, Washington D.C. averages around 29° by day and 20° at night, with 14 rain days a month — about a 44% chance of rain on any given day.
By day
29°C
At night
20°C
Daily rain chance
44%
Rain days a month
14
Monthly precipitation
159 mm
Sunshine hours a day
10.6
Average of 2016–2025 (Open-Meteo archive). Typical climate — not a forecast.
Is August a good time to visit Washington D.C.?
August is a rainy month in Washington D.C. — 14 rain days on average. Fine if you do not mind the rain, and usually a cheaper season too.
Every month in Washington D.C.
Frequently asked questions
- What is the weather in Washington D.C. in August?
- In August, temperatures in Washington D.C. average between 20° at night and 29° by day, with 14 rain days a month (average of 2016–2025).
- How much rain falls in Washington D.C. in August?
- Washington D.C. gets about 159 mm of rain in August on average, spread over roughly 14 rain days.
- Is August a good time to visit Washington D.C.?
- August is a rainy month in Washington D.C. — 14 rain days on average. Fine if you do not mind the rain, and usually a cheaper season too.