Marigot (French Saint Martin) weather in September
September in Marigot: sweltering, rainy, with clean air — fine if you can take 37°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#11 of 12 months in Marigot · #735 of 1413 destinations to visit in September · comfort 79/100 (tier B)
- Days
- 32°C
- Nights
- 27°C
- Wet days
- 18
- Sun
- 10.7 h
- Humidity
- 81%
- Daylight
- 12 h
Traveller notes on Marigot in September
St. Martin's forum describes September as generally sunny day after day, hot and humid, with scattered 20-30 minute showers - often at night - rather than sustained rain. It's also the height of hurricane season (August through October are the most active months), so travel insurance gets recommended repeatedly. Marigot's French-side restaurant scene thins out noticeably in September as many close for the month, though posters said there's still enough open to eat well, just without the full peak-season variety - the trade-off being a genuinely quiet, uncrowded month for whatever stays open.
Other months in Marigot
Forum posters call early March a genuinely nice time weather-wise, though it lands squarely in peak season - the Heineken Regatta (March 6-9 in a recent year) and SXM Music Festival (March 12-16) bring real crowds, mostly concentrated around Simpson Bay rather than blanketing the whole island. Marigot itself, on the French side, is described as distinctly low-key and French rather than typical Caribbean-touristy - fine restaurants, sidewalk shopping and an open-air market, with posters specifically noting the absence of the T-shirt-shop hawking common elsewhere in the Caribbean. One-way traffic and general congestion in town are called out as a genuine annoyance worth planning around, and a short ferry ride over to nearby Anguilla (Shoal Bay specifically) is a commonly recommended day trip from Marigot.
Add your own note from Marigot's card on the map.
Marigot climate normals — September
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.
Within 300 km: Philipsburg's Sea turtle nesting around 1 Apr – 30 Nov.