Washington weather in September 2021

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26
26°C max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
15
15°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
87
87 mm of monthly rainfall
7
7 (High) UV index

Recommended for D.C.

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

The September weather guide for Washington, D.C. 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.

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How hot is it in Washington in September?

Daytime temperatures usually reach 26°C in Washington in September with low heat and humidity, falling to 15°C 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 87mm.

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 sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Washington in September 2021. Select a month to view Washington sunrise & sunset times for the next twelve months.

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