SeasonMapMarigot (French Saint Martin) weather in September
Saint Martin
September in Marigot: sweltering, rainy, with clean air — fine if you can take 37°C afternoons.
#11 of 12 months in Marigot · #722 of 1383 destinations to visit in September · comfort 79/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Marigot in September
No notes yet. Open Marigot on the map to add the first one.
Marigot climate normals — September
| Daytime high | 32°C / 90°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 37°C / 99°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 135 mm / 5.3 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 12.2 h | |
| Wind | 27 km/h / 17 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 Marigot 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.
Quiettravelers describe it as quiet, school holidays in 2 of the markets that fill it
Sourced from traveler notes: “…eak-season variety - the trade-off being a genuinely quiet, uncrowded month for whatever stays open.” — SaintMartinFrenchSideRegular
Peak crowdsBusyShoulder seasonQuiet
Best months for Marigot'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 weatherMarigot's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Marigot in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Atlantic hurricane season
1 Jun – 30 NovIrma came through in September 2017 and took the roof off much of Marigot, and the island has rebuilt around that memory. Most seasons pass quietly; mid-August to mid-October is the stretch that concentrates the risk. Source ↗
- Season
Autumn shutdown
1 Sep – 31 OctOff-season shutdownClosuresSeptember and October are the island's annual break: a good share of the restaurants and hotels close for maintenance and staff holidays. Prices are at their lowest and so is the number of places to eat.
Nearby, and something's on
Within 300 km of Marigot — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Marigot?
Marigot in September — FAQ
- Is September a good time to visit Marigot?
- September in Marigot: sweltering, rainy, with clean air — fine if you can take 37°C afternoons. It ranks #11 of 12 months for Marigot on SeasonMap's comfort score (79/100).
- What is the weather like in Marigot in September?
- In September, Marigot averages a daily high of 32.3°C and a low of 26.9°C, with about 135 mm of rain over roughly 17.9 rainy days.
- What is the air quality in Marigot in September?
- Marigot has a mean US Air Quality Index of about 35 in September.
Other months in Marigot
Compare Marigot in September
Warmer or cooler than Marigot in September
Similar destinations in Caribbean — September
Within 300 km: Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov.