SeasonMapGrand Baie weather in December
Mauritius
December in Grand Baie: hot, a little rain, with clean air — an excellent time to visit.
#8 of 12 months in Grand Baie · #158 of 1383 destinations to visit in December · comfort 88/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Grand Baie in December
No notes yet. Open Grand Baie on the map to add the first one.
Grand Baie climate normals — December
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 32°C / 90°F | |
| Sea temperature | 27°C / 81°F | 😎 warm sea |
| Rainfall | 64 mm / 2.5 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 12 h/day | |
| Daylight | 13.3 h | |
| Wind | 25 km/h / 16 mph | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Grand Baie in December
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.
BusyFestive season peak, school holidays in 5 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Grand Baie'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 weatherGrand Baie's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Grand Baie in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Cyclone season
15 Nov – 15 May · usuallyThe Mauritius Meteorological Services run their cyclone warning classes from mid-November to mid-May. A class III shuts the island down, shops and boats included, usually for a day or two; January to March is the likeliest stretch. Source ↗
- Holiday
Festive season peak
15 Dec – 10 Jan · usuallyChristmas & New YearCrowdedBook earlyMauritian families and the European winter arrive at once, and Grand Baie's beaches, boats and restaurants run at capacity. Rates go to their yearly high and the good tables need booking days ahead. Source ↗
Where is Grand Baie?
Grand Baie in December — FAQ
- Is December a good time to visit Grand Baie?
- December in Grand Baie: hot, a little rain, with clean air — an excellent time to visit. It ranks #8 of 12 months for Grand Baie on SeasonMap's comfort score (88/100).
- What is the weather like in Grand Baie in December?
- In December, Grand Baie averages a daily high of 28.8°C and a low of 24.6°C, with about 63.5 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Grand Baie in December?
- Grand Baie has a mean US Air Quality Index of about 25 in December.