Click on a day for an hourly weather forecast
The weather in Port Au Prince in September is hot. The average temperatures are between 18°C and 32°C. Usually the days in September are hot while the nights are a bit cooler.
There’s going to be many days of rain during the month of September in Port Au Prince.
Port Au Prince should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Port Au Prince in September 2025.
If you’re planning to visit Port Au Prince in the near future, we highly recommend that you review the 14 day weather forecast for Port Au Prince before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 30° / 15° | 1 | 30 | 0 | 28 mm | Good | Port Au Prince in January |
| February | 31° / 16° | 3 | 26 | 0 | 43 mm | Good | Port Au Prince in February |
| March | 30° / 17° | 7 | 24 | 0 | 102 mm | Ok | Port Au Prince in March |
| April | 31° / 18° | 11 | 20 | 0 | 164 mm | Ok | Port Au Prince in April |
| May | 31° / 18° | 15 | 16 | 0 | 268 mm | Ok | Port Au Prince in May |
| June | 32° / 19° | 12 | 18 | 0 | 171 mm | Ok | Port Au Prince in June |
| July | 33° / 19° | 14 | 17 | 0 | 219 mm | Ok | Port Au Prince in July |
| August | 33° / 19° | 15 | 16 | 0 | 239 mm | Ok | Port Au Prince in August |
| September | 32° / 18° | 17 | 13 | 0 | 287 mm | Ok | Port Au Prince in September |
| October | 32° / 18° | 15 | 16 | 0 | 246 mm | Ok | Port Au Prince in October |
| November | 30° / 17° | 10 | 20 | 0 | 138 mm | Ok | Port Au Prince in November |
| December | 30° / 16° | 2 | 29 | 0 | 40 mm | Good | Port Au Prince in December |