SeasonMapGreat Exuma (Exuma) weather in September
Bahamas
September in Great Exuma: warm, rainy, with clean air — an excellent time to visit.
#9 of 12 months in Great Exuma · #547 of 1383 destinations to visit in September · comfort 84/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Great Exuma in September
No notes yet. Open Great Exuma on the map to add the first one.
Great Exuma climate normals — September
| Daytime high | 29°C / 84°F | 🌤 warm |
|---|---|---|
| Nighttime low | 27°C / 81°F | |
| Sea temperature | 31°C / 87°F | ♨️ bath-warm |
| Rainfall | 103 mm / 4.1 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 11 h/day | |
| Daylight | 12.3 h | |
| Wind | 23 km/h / 15 mph | |
| Air quality (US AQI) | 28 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Great Exuma 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.
Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Great Exuma'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 weatherGreat Exuma's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Great Exuma in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Hurricane season
1 Jun – 30 NovExuma sits south of the track Dorian took into Abaco in 2019, but nothing in the Bahamas is out of range. Flights thin from late August and villa rates fall with the airlift. Source ↗
Where is Great Exuma?
Great Exuma in September — FAQ
- Is September a good time to visit Great Exuma?
- September in Great Exuma: warm, rainy, with clean air — an excellent time to visit. It ranks #9 of 12 months for Great Exuma on SeasonMap's comfort score (84/100).
- What is the weather like in Great Exuma in September?
- In September, Great Exuma averages a daily high of 28.8°C and a low of 27.2°C, with about 103.2 mm of rain over roughly 16.6 rainy days.
- What is the air quality in Great Exuma in September?
- Great Exuma has a mean US Air Quality Index of about 28 in September.