SeasonMapMamoudzou weather in September
Mayotte
September in Mamoudzou: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in Mamoudzou · #61 of 1383 destinations to visit in September · comfort 94/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mamoudzou in September
No notes yet. Open Mamoudzou on the map to add the first one.
Mamoudzou climate normals — September
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Sea temperature | 28°C / 82°F | 😎 warm sea |
| Rainfall | 12 mm / 0.5 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mamoudzou 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.
Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Mamoudzou'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 weatherMamoudzou's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Mamoudzou in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Humpback whales in the lagoon
1 Jul – 31 Oct · usuallyWhale seasonHumpbacks come up from Antarctic waters to calve inside Mayotte's lagoon, the largest double-barrier lagoon in the world, from around July to October. Most sightings are a mother and calf in shallow, sheltered water rather than a breaching adult.
Where is Mamoudzou?
Mamoudzou in September — FAQ
- Is September a good time to visit Mamoudzou?
- September in Mamoudzou: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Mamoudzou on SeasonMap's comfort score (94/100).
- What is the weather like in Mamoudzou in September?
- In September, Mamoudzou averages a daily high of 26.2°C and a low of 23.7°C, with about 11.6 mm of rain over roughly 3.8 rainy days.
- What is the air quality in Mamoudzou in September?
- Mamoudzou has a mean US Air Quality Index of about 27 in September.