Click on a day for an hourly weather forecast
The weather in Grand Baie in September is hot. The average temperatures are between 21°C and 24°C.
As it is almost never rain during September in Grand Baie the weather is perfect for hanging out outside and exploring all that Grand Baie has to offer.
Our weather forecast can give you a great sense of what weather to expect in Grand Baie in September 2025.
If you’re planning to visit Grand Baie in the near future, we highly recommend that you review the 14 day weather forecast for Grand Baie before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 25° | 8 | 23 | 0 | 188 mm | Good | Grand Baie in January |
| February | 28° / 26° | 9 | 20 | 0 | 192 mm | Good | Grand Baie in February |
| March | 28° / 26° | 7 | 24 | 0 | 141 mm | Good | Grand Baie in March |
| April | 27° / 25° | 4 | 26 | 0 | 89 mm | Perfect | Grand Baie in April |
| May | 26° / 23° | 1 | 30 | 0 | 50 mm | Perfect | Grand Baie in May |
| June | 24° / 22° | 1 | 29 | 0 | 42 mm | Perfect | Grand Baie in June |
| July | 23° / 21° | 1 | 30 | 0 | 40 mm | Perfect | Grand Baie in July |
| August | 23° / 21° | 1 | 30 | 0 | 44 mm | Perfect | Grand Baie in August |
| September | 24° / 21° | 0 | 30 | 0 | 21 mm | Perfect | Grand Baie in September |
| October | 25° / 22° | 1 | 30 | 0 | 26 mm | Perfect | Grand Baie in October |
| November | 26° / 23° | 2 | 28 | 0 | 46 mm | Perfect | Grand Baie in November |
| December | 28° / 25° | 3 | 28 | 0 | 70 mm | Perfect | Grand Baie in December |