SeasonMapSint Eustatius (Statia) weather in September
Sint Eustatius
September in Sint Eustatius: warm, rainy, with clean air — an excellent time to visit.
#11 of 12 months in Sint Eustatius · #576 of 1383 destinations to visit in September · comfort 84/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sint Eustatius in September
No notes yet. Open Sint Eustatius on the map to add the first one.
Sint Eustatius climate normals — September
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Sea temperature | 30°C / 87°F | ♨️ bath-warm |
| Rainfall | 100 mm / 3.9 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.9 h/day | |
| Daylight | 12.2 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sint Eustatius in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Quietschool holidays in 2 of the markets that fill it, one of its worst months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sint Eustatius's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSint Eustatius's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Sint Eustatius in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Hurricane season
1 Jun – 30 NovClosuresThe island sits in the middle of the chain and both Irma and Maria came within reach in 2017. With one ferry, one small runway and a handful of guesthouses, a near miss still shuts the place for days. Source ↗
Nearby, and something's on
Within 300 km of Sint Eustatius — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sint Eustatius?
Sint Eustatius in September — FAQ
- Is September a good time to visit Sint Eustatius?
- September in Sint Eustatius: warm, rainy, with clean air — an excellent time to visit. It ranks #11 of 12 months for Sint Eustatius on SeasonMap's comfort score (84/100).
- What is the weather like in Sint Eustatius in September?
- In September, Sint Eustatius averages a daily high of 28.3°C and a low of 26.6°C, with about 100.2 mm of rain over roughly 16.4 rainy days.
- What is the air quality in Sint Eustatius in September?
- Sint Eustatius has a mean US Air Quality Index of about 35 in September.
Other months in Sint Eustatius
Compare Sint Eustatius in September
Warmer or cooler than Sint Eustatius in September
Similar destinations in Caribbean — September
Within 300 km: Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov.