Normally average temperatures in Port Louis during September is 19. Through the month the highs are about 23 degrees with a low of 18 celsius. We have put some more information here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 19 |
| High Temperature | 23 |
| Low Temperature | 18 |
| Sunshine Per Day | 9 |
Useful Links: Port Louis Weather: Average Weather & Yearly Climate