- Book online with TUI & save up to 7% on holidays
- FREE child places available for select holidays
- Pay £0 deposits with direct debit & spread the cost
Washington weather in September 2025
Expect 26°C 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 2025/2026.
- 2626°C max day temperature
- 7 hours of sunshine per day
- 77 days with some rainfall
- 1515°C min night temperature
- 1212 hours of daylight per day
- LLow heat & humidity
- 8787 mm of monthly rainfall
- 77 (High) UV index
More about Washington
- Overview
- Best time to visit
- Weather by month
- 5-day weather forecast
- Destinations
- Travel advice
- Deals & discounts
Washington by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for D.C.
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 / mm) | Imperial (°F / inches)
More about the USA
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 September sunrise & sunset times
Browse the sunrise and sunset times for Washington in September 2025. Select a month to view Washington sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:37 | 18:38 |
Monday, 15th September 2025 | 05:50 | 18:16 |
Tuesday, 30th September 2025 | 06:03 | 17:52 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- easyJet holidays
- Love Holidays
- British Airways
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport