Mamoudzou weather by month
The best time to visit Mamoudzou is August to October — 93/100 in August, 26°C and 2 rainy days. The best season is the dry season, May to November (91/100 on average).
The worst month is January at 70/100 — hot, soaked, clean air. See January →
Updated September 2026 · climate normals from ERA5 reanalysis
Best season: May to November (91/100 on average) · worst January (70/100)
- Days
- 26°C
- Nights
- 24°C
- Wet days
- 2
- Sun
- 10.8 h
- Humidity
- 74%
- Daylight
- 12 h

Mamoudzou, month by month
Comfort score out of 100 for the kind of trip Mamoudzou is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Mamoudzou through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Mamoudzou in August
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 4 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Traveller notes on Mamoudzou
What people who have been say about the place — the year-round notes first, then month by month.
There's no Mamoudzou-specific forum thread for March, so this leans on the wider Indian Ocean region's pattern rather than a direct traveler account: neighboring islands like Mauritius and Madagascar describe March as hot, humid and genuinely wet, squarely inside the cyclone-season window for this part of the ocean. Mayotte's own climate record fits that regional pattern - warm, rainy, and humid rather than dry - though the destination's own numbers suggest a bit less total rainfall than some of its more exposed neighbors see this time of year.
Forum coverage specific to Mamoudzou's September weather is thin, with most forum activity centered on general trip planning, accommodation and diving logistics rather than granular climate detail. Mayotte sits within the same Indian Ocean seasonal pattern as nearby Madagascar and the Comoros, where the austral winter months (roughly May through October) bring a notably drier, cooler stretch than the hot, wet December-to-March cyclone season - September sits comfortably within that drier window. Given the limited detailed trip reports available, travelers planning a September visit should expect the general pattern of a Southern Hemisphere dry season to hold, with real specifics best confirmed closer to travel dates given how few firsthand accounts exist for this destination.
Add your own note from Mamoudzou's card on the map.