Castries weather in June
June in Castries: hot, a little rain — an excellent time to visit.
#8 of 12 months in Castries · #269 of 604 destinations to visit in June · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Castries climate normals — June
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 78°F | |
| Feels like (high) | 32°C / 90°F | |
| Rainfall | 77 mm / 3 in | 🌦 some rain |
| Rainy days | 16 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 12.9 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
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 June — FAQ
- Is June a good time to visit Castries?
- June in Castries: hot, a little rain — an excellent time to visit. It ranks #8 of 12 months for Castries on SeasonMap's comfort score (83/100).
- What is the weather like in Castries in June?
- In June, Castries averages a daily high of 29.5°C and a low of 25.4°C, with about 76.7 mm of rain over roughly 15.6 rainy days.
- What is the air quality in Castries in June?
- Castries has a mean US Air Quality Index of about 53 in June.