Washington Weather in August

Washington in August averages 20°C (68°F) during the day and 12°C (54°F) at night. This is the wettest month of the year, and part of the summer season.

Rainfall in Washington in August

During the wettest month of the year, an umbrella can be your best friend to stay dry. This month experiences about 15 days of rain according to historical data, averaging 75 mm (3 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Washington in August

If you're visiting Washington in August, expect excellent temperatures with highs of 20°C (68°F) and overnight lows of 12°C (54°F). During August, you'll experience the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Washington in August

The city usually sees around 173 hours of sunlight, indicating a moderately sunny period.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Washington.