Weather in Washington DC in July
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for July in Washington DC.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youWashington DC in July is hot — daytime temperatures average 31.7°C, dropping to 21.4°C at night. The month is very wet, with around 15 rainy days, with roughly 12.1 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Washington DC — every month compared. Once you know when to go, find your Washington DC packing list at 247PackingList.
Get ready for Washington DC in July
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Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
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- Lightweight, breathable clothing
- High SPF sunscreen
- Sunglasses
- Sun hat
- Reusable water bottle
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Washington DC
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 7.4°C | 78.2mm | 10/10 |
| February | 9.5°C | 97.1mm | 10/10 |
| March | 14.4°C | 80.8mm | 10/10 |
| April | 18.7°C | 108.8mm | 9/10 |
| May | 22.9°C | 98.4mm | 10/10 |
| June | 28.7°C | 137.4mm | 9/10 |
| July | 31.7°C | 169.2mm | 9/10 |
| August | 29.8°C | 223.4mm | 8/10 |
| September | 25.8°C | 137.7mm | 9/10 |
| October | 20.4°C | 113.1mm | 9/10 |
| November | 14.1°C | 95.5mm | 10/10 |
| December | 9.5°C | 124.5mm | 9/10 |
Full month-by-month guide: best time to visit Washington DC →
For facts about United States — currency, language and dialling code — see our United States country guide at 247CountryInfo. Travellers also find it useful to keep a Washington DC travel guide to hand. Check clothing sizes in United States before you shop.
Frequently Asked Questions
Is July a good time to visit Washington DC?
July rates 9/10 for visiting Washington DC — excellent time to visit. Expect average highs of 31.7°C, 169.2mm of rain across the month and about 12.1 hours of daily sunshine.
What is the temperature in Washington DC in July?
In July, Washington DC has average highs of 31.7°C (89.1°F) and average lows of 21.4°C (70.5°F).
Does it rain in Washington DC in July?
Yes — July is one of the wetter months in Washington DC, averaging 169.2mm of rain over roughly 15 rainy days. Pack for heavy showers.
What should I wear in Washington DC in July?
For Washington DC in July (31.7°C highs / 21.4°C lows), pack lightweight, breathable clothing plus high spf sunscreen, sunglasses, sun hat.
More essentials for Washington DC in July
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.