Grand Baie, Mauritius weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: September – June
What is the weather like in Grand Baie, Mauritius in September?
In September, Grand Baie, Mauritius is warm: daytime highs average 24 °C, and even at night it stays warm at around 20 °C. The sea averages 23.7 °C – pleasant for swimming. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 36 mm in total. All in all, September is a good month for a holiday in Grand Baie, Mauritius.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 71 | 78 | 88 |
| Day | 23° | 24° | 25° |
| Night | 20° | 20° | 21° |
| Sea | 24° | 24° | 24° |
| Sun | 7 h | 8 h | 8 h |
| Rain days | 11 | 12 | 10 |
More details for September
- Daylight
- 11 h 57 min06:06 – 18:04
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or more
- Wind
- 28 km/haverage daily peak
- Cloud cover
- 43 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+4Indian/Mauritius
How the score comes together
- Temperatureweight 35 %85 %
- Seaweight 25 %96 %
- Sunshineweight 20 %77 %
- Few rainy daysweight 20 %45 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Grand Baie, Mauritius in September: quick answers
Is Grand Baie, Mauritius hot in September?
Warm rather than hot: in September, daytime highs in Grand Baie, Mauritius average 24 °C and nights cool to about 20 °C.
Can you swim in Grand Baie, Mauritius in September?
Yes. In September the sea averages 23.7 °C – pleasant for swimming.
Does it rain much in Grand Baie, Mauritius in September?
Rain is frequent, with about 12 rainy days and 36 mm in total.
Grand Baie, Mauritius month by month
The whole year in Grand Baie, MauritiusAll destinations: MauritiusWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)