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 -0.8 °F.
The forecast for the coming days of May 2026 predicts a temperature of 26.6 °F , which is warmer than usual.
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 23.9 °F by the end of May.
Washington, D.C. experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 184.6 mm.
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Temperatures
Rain 🌧️
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3
Dry days
28
Rainy days
0
Snow days
23°/13°
Temperatures
15 km/h
Avg max wind
70 %
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 | Cloudy | 21° /9° | 1 mm | 5 | |
| May 12 | Partly cloudy | 21° /10° | 1.8 mm | 6 | |
| May 13 |  Moderate or heavy rain shower | 22° /12° | 16.4 mm | 6 | |
| May 14 | Overcast | 21° /13° | 13.8 mm | 5 | |
| May 15 | Partly cloudy | 24° /12° | 3.8 mm | 6 | |
| May 16 | Patchy rain possible | 25° /13° | 1.6 mm | 6 | |
| May 17 | Partly cloudy | 25° /14° | 3.7 mm | 7 | |
| May 18 | Partly cloudy | 25° /12° | 2.5 mm | 7 | |
| May 19 |  Sunny | 27° /14° | 0.4 mm | 6 | |
| May 20 | Overcast | 28° /14° | 1 mm | 7 | |
| May 21 | Partly cloudy | 26° /14° | 6.5 mm | 6 | |
| May 22 | Moderate or heavy rain shower | 27° /14° | 6.2 mm | 6 | |
| May 23 | Partly cloudy | 22° /14° | 3.3 mm | 5 | |
| May 24 | Patchy rain possible | 23° /13° | 3.1 mm | 5 | |
| May 25 | Overcast | 24° /13° | 1.2 mm | 5 | |
| May 26 |  Fog | 29° /18° | 0.1 mm | 1.4 | |
| May 27 | Patchy rain possible | 23° /16° | 1.6 mm | 6.9 | |
| May 28 | Sunny | 26° /15° | 0 mm | 8.5 | |
| May 29 | Sunny | 26° /10° | 0 mm | 8.6 | |
| May 30 | Sunny | 20° /11° | 0 mm | 0.8 | |
| May 31 | Sunny | 19° /9° | 0 mm | 4 | |
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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 184.6 mm is expected in Washington, D.C. during May, occurring over more than 28 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 28 rainy days in May with a total of 184.6 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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