Key West weather in April
April in Key West: hot, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Key West · #157 of 604 destinations to visit in April · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Key West climate normals — April
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 33 mm / 1.3 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 11.6 h/day | |
| Daylight | 12.7 h | |
| Wind | 27 km/h / 17 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Key West in April — FAQ
- Is April a good time to visit Key West?
- April in Key West: hot, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Key West on SeasonMap's comfort score (85/100).
- What is the weather like in Key West in April?
- In April, Key West averages a daily high of 26°C and a low of 24.6°C, with about 33 mm of rain over roughly 6.4 rainy days.
- What is the air quality in Key West in April?
- Key West has a mean US Air Quality Index of about 50 in April.