In September warmest sea in Sicily is usually observed in the following locations: Milazzo, Mondello, Casteldaccia.
Table below shows the average sea water temperature for marine resorts of Sicily in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Milazzo | 80.1°F | 80.5°F | 78.2°F |
| Mondello | 80.1°F | 79.6°F | 78.2°F |
| Casteldaccia | 79.9°F | 79.6°F | 78.2°F |
| Cefalu | 79.9°F | 80.0°F | 78.3°F |
| Termini Imerese | 79.9°F | 79.9°F | 78.4°F |
| Patti | 79.9°F | 80.2°F | 78.0°F |
| Capo d'Orlando | 79.9°F | 80.0°F | 78.0°F |
| Calava | 79.8°F | 80.1°F | 77.9°F |
| Sant'Agata di Militello | 79.8°F | 80.1°F | 78.1°F |
| Gioiosa Marea | 79.7°F | 80.0°F | 77.8°F |
| Sicily | 79.6°F | 79.7°F | 78.1°F |
| Campofelice di Roccella | 79.6°F | 79.7°F | 78.3°F |
| Palermo | 79.5°F | 79.0°F | 77.8°F |
| Aci Castello | 79.4°F | 80.6°F | 78.2°F |
| Acireale | 79.2°F | 80.6°F | 78.0°F |
| Terrasini | 79.2°F | 79.4°F | 77.5°F |
| Giardini Naxos | 79.1°F | 80.3°F | 77.5°F |
| Taormina | 79.1°F | 80.3°F | 77.4°F |
| San Vito Lo Capo | 79.0°F | 79.5°F | 77.6°F |
| Letojanni | 78.9°F | 80.2°F | 77.3°F |
| Trapani | 78.5°F | 78.5°F | 76.4°F |
| Castellammare del Golfo | 78.3°F | 79.0°F | 77.5°F |
| Favignana | 77.9°F | 77.1°F | 76.0°F |
| Messina | 77.6°F | 79.7°F | 77.3°F |
| Marsala | 77.1°F | 76.0°F | 75.6°F |
| Mazara del Vallo | 76.9°F | 76.2°F | 75.1°F |
Charts below show average sea water temperature for Sicily resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Sicily resorts at that time.
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