Washington weather in April
April in Washington: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Washington · #146 of 604 destinations to visit in April · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Washington climate normals — April
| Daytime high | 19°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 47°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 100 mm / 3.9 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 63% | 💧 humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 13.2 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Washington in April — FAQ
- Is April a good time to visit Washington?
- April in Washington: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Washington on SeasonMap's comfort score (86/100).
- What is the weather like in Washington in April?
- In April, Washington averages a daily high of 19.3°C and a low of 8.5°C, with about 100 mm of rain over roughly 10 rainy days.
- What is the air quality in Washington in April?
- Washington has a mean US Air Quality Index of about 45 in April.