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