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Things to Do in Washington DC in September
Real historical weather for Washington DC in September: average highs of 26°C and lows of 17°C, with around 106mm of rain (averaged over the last 3 years). Washington DC is in United States.
26°C
Average high
17°C
Average low
106mm
Typical rainfall
Real things to do in Washington DC in September
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Private Washington DC City Tour
★ 4.9(1,654 reviews)· 4 hrs
From €491

Washington DC Small-Group Sightseeing Experience
★ 4.9(1,306 reviews)· 4 hrs
From €88

Washington DC "See the City" Guided Sightseeing Segway Tour
★ 4.9(2,000 reviews)· 2h 30m
From €62

Washington DC Sightseeing Tour with Vintage Model-T Classic Cars
★ 4.8(503 reviews)· 2 hrs
From €57

Washington DC Monuments Tour by Electric Cart – Day & Night
★ 4.7(3,007 reviews)· 2 hrs
From €44

Washington DC in One Day: Guided Sightseeing Tour + boat cruise
★ 4.7(3,646 reviews)· 6 hrs
From €79

Washington DC Night Tour: ICONIC Landmarks, Monuments SMALL GROUP
★ 4.7(86 reviews)· 3 hrs
From €40

Washington DC Monuments by Moonlight Tour by Trolley
★ 4.6(4,126 reviews)· 2h 30m
From €54

Washington DC Hop-On Hop-off Trolley Tour with 15 Stops
★ 4.1(2,759 reviews)· 1h 30m
From €49

Skip-the-Line Washington Monument Tickets + Self Guided Book
★ 3.3(216 reviews)· 1 hr
From €18
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FAQs — Washington DC in September
Based on real historical data (averaged over the last 3 years), expect highs around 26°C and lows around 17°C, with roughly 106mm of rain.