Basseterre weather in May
May in Basseterre: warm, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Basseterre · #254 of 897 destinations to visit in May · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Basseterre in May
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Basseterre climate normals — May
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Rainfall | 30 mm / 1.2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 12.9 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Basseterre in May — FAQ
- Is May a good time to visit Basseterre?
- May in Basseterre: warm, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Basseterre on SeasonMap's comfort score (87/100).
- What is the weather like in Basseterre in May?
- In May, Basseterre averages a daily high of 27.8°C and a low of 25.7°C, with about 30.3 mm of rain over roughly 9.4 rainy days.
- What is the air quality in Basseterre in May?
- Basseterre has a mean US Air Quality Index of about 35 in May.