Washington, D.C. weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Fair
Best time to visit: April – June, September – October
What is the weather like in Washington, D.C. in March?
In March, Washington, D.C. is cool: daytime highs average 13 °C, and nights cool down to about 2 °C. The sea averages 5.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 90 mm in total. All in all, March is a so-so month for a holiday in Washington, D.C..
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 28 | 52 | 80 |
| Day | 8° | 13° | 19° |
| Night | −1° | 2° | 8° |
| Sea | 3° | 5° | 10° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 9 | 10 | 10 |
More details for March
- Daylight
- 11 h 53 min07:21 – 19:14
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 50 %49 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 30 %57 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Washington, D.C. in March: quick answers
Is Washington, D.C. hot in March?
No. In March, Washington, D.C. is cool: daytime highs average 13 °C and nights drop to about 2 °C.
Can you swim in Washington, D.C. in March?
Only if you don't mind cold water: in March the sea averages just 5.0 °C. Comfortable swimming is possible from June to September.
Does it rain much in Washington, D.C. in March?
Rain is frequent, with about 10 rainy days and 90 mm in total.
Washington, D.C. month by month
The whole year in Washington, D.C.All destinations: USAWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences