Washington DC in September
Washington DC in September
Washington DC, United States
Visiting Washington DC in September means experiencing the autumn. During autumn, Washington DC offers crisp air, changing colours, and a cosy atmosphere.
Weather in Washington DC in September
Average highs around 26C and lows near 16.6C. 118mm average precipitation and about 11 rainy days. September typically sits between August and October conditions, so it is useful for travelers wanting a balanced window in Washington DC. Pack quick-dry clothing and a light waterproof layer for September.
Temperature
September brings autumn conditions in Washington DC, United States. The average temperature is about 21.3C, with lows near 16.6C and highs around 26C.
Sunshine Hours
Washington DC, United States usually gets around 9 hours of sunshine per day in September, with roughly 12.4 daylight hours available for sightseeing.
Rain
September sees around 118mm of rainfall over about 11 days. Rain can occur for around 3.9 hours per day on average.
Humidity
Humidity in September is generally moderate for Washington DC, United States, especially when rainfall periods increase.
Additional Information
Average winds are around 14.4 km/h, so pack layers that handle changing conditions. Pack quick-dry clothing and a light waterproof layer for September.
Our September Hotel Picks for Washington DC
InterContinental the Willard Washington D.C. by IHG
Elegant landmark property featuring an ornate lobby & a luxe spa, plus an acclaimed bar & dining.
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The Hay-Adams
Luxe 1928 lodging with fine dining, ornate meeting areas & elegant quarters, plus White House views.
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Four Seasons Hotel Washington, DC
Upscale lodging with restaurants, a spa & an indoor pool, plus complimentary Wi-Fi.
View hotelWhat to Do in Washington DC in September
Washington Monument
Landmark obelisk rising from the National Mall that honors Americas first president.
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Lincoln Memorial
Parthenon-inspired tribute to Abraham Lincoln with a 19-ft. marble statue, murals & reflecting pool.
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The White House
Landmark, historic home & office of the United States president, with tours for visitors.
Explore activityTravel tips for Washington DC in September
Pack quick-dry clothing and a light waterproof layer for September. Book accommodation earlier when events overlap with peak weekends, and keep an eye on changing weather windows for day trips.
