Washington weather in September 2024

Expect 79°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Washington in September. Check more long-term weather averages for Washington in September before you book your next holiday to D.C. in 2024/2025.

79
79°F max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
59
59°F min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
3.4
3.4 inches of monthly rainfall
7
7 (High) UV index

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The September weather guide for D.C., represented by Washington, (Washington) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the USA

How hot is it in Washington in September?

Daytime temperatures usually reach 79°F in Washington in September with low heat and humidity, falling to 59°F at night.

How sunny is it in Washington in September?

There are normally 7 hours of bright sunshine each day in Washington in September - that's 60% of daylight hours.

Does it rain in Washington in September?

There are usually 7 days with some rain in Washington in September and the average monthly rainfall is 3.4 inches.

What is the chance of a hurricane in Washington in September?

On average less than 1 day in September in Washington is likely to be affected by the passage of one or more tropical storms.

Washington September sunrise & sunset times

Browse the sunrise and sunset times for Washington in September 2024. Select a month to view Washington sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	06:37	19:38
Sunday, 15th September 2024	06:50	19:15
Monday, 30th September 2024	07:04	18:51

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D.C. - quick facts
Flight time^✝	8.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	DC Government