May
Weather in Washington, D.C. for May 2026
Your guide to Washington, D.C. weather in May - trends and predictions
Until now, May 2026 in Washington, D.C. is slightly cooler than the historical average by -1.2 °F.
The forecast for the upcoming days in Washington, D.C. predicts a temperature of 24.8 °F, which is slightly above the historical average.
In general, the average temperature in Washington, D.C. at the beginning of May is 21 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 24 °F by the end of May.
Washington, D.C. experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 192.8 mm.
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Temperatures
Rain 🌧️
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5
Dry days
26
Rainy days
0
Snow days
23°/13°
Temperatures
15 km/h
Avg max wind
71 %
Avg humidity
Washington, D.C. Weather May
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Temperatures trend during May in Washington, D.C.
See the weather trend as well as the moving average line
May weather in Washington, D.C. day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Cloudy | 19° /10° | 0.9 mm | 5 | |
| May 2 | Cloudy | 22° /11° | 0.4 mm | 6 | |
| May 3 |  Partly cloudy | 22° /11° | 1.8 mm | 6 | |
| May 4 |  Patchy rain possible | 21° /12° | 12.9 mm | 5 | |
| May 5 | Patchy rain possible | 22° /12° | 5.1 mm | 6 | |
| May 6 |  Overcast | 21° /12° | 7.8 mm | 5 | |
| May 7 |  Heavy rain at times | 20° /11° | 7 mm | 4 | |
| May 8 | Heavy rain at times | 22° /11° | 1.8 mm | 6 | |
| May 9 | Cloudy | 20° /10° | 15 mm | 5 | |
| May 10 | Patchy rain possible | 21° /9° | 4.2 mm | 6 | |
| May 11 | Patchy rain possible | 19° /11° | 1.9 mm | 2.9 | |
| May 12 |  Sunny | 20° /6° | 0 mm | 7.2 | |
| May 13 |  Moderate rain | 23° /12° | 5.8 mm | 6.2 | |
| May 14 | Patchy rain possible | 13° /8° | 0.1 mm | 4.5 | |
| May 15 | Patchy rain possible | 18° /11° | 0.1 mm | 0.8 | |
| May 16 | Partly cloudy | 19° /9° | 0.1 mm | 4 | |
| May 17 | Sunny | 29° /13° | 0 mm | 6 | |
| May 18 | Patchy rain possible | 35° /17° | 0.2 mm | 6 | |
| May 19 | Patchy rain possible | 31° /18° | 1.1 mm | 5 | |
| May 20 | Sunny | 34° /14° | 0 mm | 5 | |
| May 21 | Sunny | 25° /11° | 0 mm | 5 | |
| May 22 | Patchy rain possible | 28° /15° | 0.1 mm | 5 | |
| May 23 | Patchy rain possible | 30° /16° | 0.1 mm | 5 | |
| May 24 | Overcast | 23° /16° | 0 mm | 4 | |
| May 25 | Overcast | 24° /13° | 0.1 mm | 6 | |
| May 26 | Overcast | 26° /14° | 1.5 mm | 6 | |
| May 27 | Cloudy | 25° /16° | 5.2 mm | 6 | |
| May 28 | Heavy rain at times | 21° /14° | 19.1 mm | 5 | |
| May 29 |  Moderate or heavy rain shower | 23° /13° | 10 mm | 5 | |
| May 30 | Moderate rain at times | 23° /13° | 5.9 mm | 5 | |
| May 31 | Sunny | 26° /12° | 21 mm | 6 | |
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Important Notice
Our weather forecast for Washington, D.C. in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Washington, D.C. forecast closer to your planned date for the most up-to-date weather information.
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Washington, D.C. in May - FAQ
What are the expected maximum and minimum temperatures in Washington, D.C. during May?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Washington, D.C. during May?
Significant rainfall exceeding 192.8 mm is expected in Washington, D.C. during May, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Washington, D.C. during May?
The average wind speed in Washington, D.C. during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Washington, D.C.
Explore the daily rainfall trends and prepare for Washington, D.C.s May weather 💧
Typically, Washington, D.C. has 26 rainy days in May with a total of 192.8 mm of rainfall.
UV exposure in Washington, D.C. during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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