Basseterre weather in August
August in Basseterre: warm, rainy, with clean air — an excellent time to visit.
#9 of 12 months in Basseterre · #424 of 897 destinations to visit in August · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Basseterre in August
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Basseterre climate normals — August
| Daytime high | 29°C / 84°F | 🌤 warm |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 94 mm / 3.7 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.7 h | |
| Wind | 30 km/h / 19 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Basseterre in August — FAQ
- Is August a good time to visit Basseterre?
- August in Basseterre: warm, rainy, with clean air — an excellent time to visit. It ranks #9 of 12 months for Basseterre on SeasonMap's comfort score (82/100).
- What is the weather like in Basseterre in August?
- In August, Basseterre averages a daily high of 28.9°C and a low of 26.7°C, with about 93.5 mm of rain over roughly 16.2 rainy days.
- What is the air quality in Basseterre in August?
- Basseterre has a mean US Air Quality Index of about 39 in August.