Castries weather in April
April in Castries: hot, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in Castries · #99 of 604 destinations to visit in April · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Castries climate normals — April
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 35 mm / 1.4 in | 🌦 some rain |
| Rainy days | 12 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 11.5 h/day | |
| Daylight | 12.5 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Castries?
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Castries in April — FAQ
- Is April a good time to visit Castries?
- April in Castries: hot, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Castries on SeasonMap's comfort score (88/100).
- What is the weather like in Castries in April?
- In April, Castries averages a daily high of 28.8°C and a low of 24.3°C, with about 35.1 mm of rain over roughly 11.8 rainy days.
- What is the air quality in Castries in April?
- Castries has a mean US Air Quality Index of about 46 in April.