The Tunisia resorts with the warmest sea water temperature in September are Zarzis, Gabes and Midun.
Below you can see a list of all popular Tunisia resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Zarzis | 87.2°F | 87.0°F | 85.6°F |
| Gabes | 87.2°F | 87.5°F | 85.9°F |
| Midun | 87.1°F | 87.2°F | 85.5°F |
| Djerba | 86.9°F | 87.1°F | 85.5°F |
| Houmt Souk | 86.8°F | 87.0°F | 85.3°F |
| Sfax | 86.2°F | 86.6°F | 85.3°F |
| Mahdia | 85.1°F | 85.1°F | 84.0°F |
| Monastir | 84.8°F | 84.0°F | 83.6°F |
| Port El Kantaoui | 84.8°F | 83.7°F | 83.5°F |
| Skanes | 84.7°F | 83.8°F | 83.6°F |
| Sousse | 84.7°F | 83.6°F | 83.5°F |
| Hammamet | 84.5°F | 83.0°F | 83.3°F |
| Nabeul | 84.4°F | 83.0°F | 83.2°F |
| Enfidha | 84.4°F | 83.2°F | 83.3°F |
| La Goulette | 84.0°F | 81.8°F | 82.1°F |
| Korba | 83.9°F | 82.0°F | 82.4°F |
| La Marsa | 83.9°F | 81.8°F | 82.1°F |
| Tunisia | 83.7°F | 81.7°F | 82.1°F |
| Gammart | 83.7°F | 81.7°F | 82.1°F |
| Bizerte | 82.8°F | 81.4°F | 81.2°F |
| Tabarka | 82.7°F | 82.1°F | 80.9°F |
Please see following sea water temperature averages charts for the warmest Tunisia resorts in September.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
