Grand Baie Weather in September
With daytime temperatures of 25°C (77°F) and nighttime lows of 21°C (70°F), September in Grand Baie brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in Grand Baie in September
Historically, approximately 12 days this month are expected to have rain, averaging 27 mm (1.1 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Grand Baie in September
Grand Baie in September is worth a visit. The temperature is perfect, with 25°C (77°F) during the day and 21°C (70°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 21°C (70°F), the nights are warm and generally comfortable.
Sunshine in Grand Baie in September
The city usually sees around 242 hours of sunlight, indicating many sunny days — a great month for sightseeing.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Grand Baie.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mauritius, check out our Grand Baie's climate page.
Grand Baie Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
25°C (77°F)
Chance of Rain
40%
Precipitation
27 mm (1.1 in)
Rainy days
12 days
Sunshine
242 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grand Baie typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 18°C (64°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Grand Baie in September
Browse day-by-day weather records for Grand Baie spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grand Baie historical weather extremes in September
According to our 49 years of weather records for Grand Baie, the following extremes were recorded between 1976 and 2025.
- The warmest day in September was on September 16, 1982, with a maximum of 31°C (88°F).
- The lowest daytime temperature in September was 15°C (59°F), recorded on September 5, 1977.
- The lowest overnight temperature recorded in September was 10°C (50°F) (September 4, 1984).
Best Places in Mauritius in September
Find out more about the weather in Mauritius and which places have the best travel conditions in this month. See all of Mauritius in September →
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What to Wear in Grand Baie in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Grand Baie in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mauritius, check out our Grand Baie's climate page.
See the full Grand Baie climate overview or explore weather in Mauritius.
