The France resorts with the warmest sea water temperature in September are Portivecju, Bastia and Bunifaziu.
Below you can see a list of all popular France resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2026 | September 2025 | September 2024 |
|---|---|---|---|
| Portivecju | 84.2°F | 79.3°F | 79.6°F |
| Bastia | 83.9°F | 78.9°F | 80.1°F |
| Bunifaziu | 83.5°F | 78.5°F | 78.1°F |
| Aiacciu | 83.3°F | 78.8°F | 77.3°F |
| Corsica | 83.0°F | 78.5°F | 77.3°F |
| Propriano | 82.8°F | 78.2°F | 77.3°F |
| Saint Jean Cap Ferrat | 82.6°F | 78.3°F | 78.5°F |
| Roquebrune Cap Martin | 82.6°F | 78.3°F | 78.7°F |
| Calvi | 82.5°F | 78.6°F | 77.4°F |
| Menton | 82.4°F | 78.3°F | 78.6°F |
| Nice | 82.3°F | 78.1°F | 78.3°F |
| Antibes | 82.1°F | 77.8°F | 78.2°F |
| Juan les Pins | 82.1°F | 77.8°F | 78.2°F |
| Saint Laurent du Var | 82.1°F | 77.9°F | 78.1°F |
| Cannes | 82.1°F | 77.6°F | 78.4°F |
| Theoule Sur Mer | 82.0°F | 77.5°F | 78.5°F |
| Mandelieu la Napoule | 82.0°F | 77.5°F | 78.5°F |
| Golfe Juan | 82.0°F | 77.7°F | 78.2°F |
| Cagnes sur Mer | 82.0°F | 77.8°F | 77.9°F |
| Frejus | 81.4°F | 77.0°F | 78.2°F |
| Cavalaire sur Mer | 81.2°F | 76.5°F | 78.0°F |
| Saint-Tropez | 81.2°F | 76.6°F | 78.1°F |
| Sainte Maxime | 81.1°F | 76.6°F | 78.1°F |
| Le Lavandou | 80.5°F | 75.9°F | 77.8°F |
| La Londe les Maures | 80.1°F | 75.1°F | 77.7°F |
| Toulon | 78.3°F | 73.6°F | 76.6°F |
| La Seyne sur Mer | 78.2°F | 73.4°F | 76.5°F |
| Sanary-sur-Mer | 78.1°F | 73.3°F | 76.5°F |
| Bandol | 78.1°F | 73.2°F | 76.5°F |
| Saint Syr Sur Mer | 77.7°F | 73.1°F | 76.6°F |
| La Ciotat | 77.4°F | 73.1°F | 76.7°F |
| Perpignan | 77.1°F | 73.4°F | 72.4°F |
| Cassis | 77.0°F | 73.0°F | 76.5°F |
| Le Grau Du Roi | 76.8°F | 72.7°F | 72.9°F |
| Montpellier | 76.4°F | 72.2°F | 72.4°F |
| Palavas les Flots | 76.3°F | 72.2°F | 72.3°F |
| Frontignan | 75.7°F | 72.4°F | 72.1°F |
| Marseilles | 75.7°F | 72.8°F | 75.7°F |
| Avignon | 75.3°F | 72.5°F | 73.3°F |
| Narbonne | 75.2°F | 71.8°F | 71.5°F |
| Biarritz | 74.7°F | 73.0°F | 71.6°F |
| Avoriaz | 73.8°F | 70.3°F | 70.8°F |
| Evian-les-Bains | 73.8°F | 70.1°F | 70.4°F |
| Beziers | 73.6°F | 71.3°F | 71.4°F |
| Bordeaux | 73.6°F | 71.0°F | 69.9°F |
| Chamonix | 73.5°F | 70.1°F | 70.0°F |
| Megeve | 72.9°F | 69.0°F | 69.4°F |
| Annecy | 72.8°F | 68.7°F | 69.1°F |
| La Rochelle | 72.5°F | 69.2°F | 67.1°F |
| Arcachon | 72.3°F | 71.2°F | 69.2°F |
| Saint Malo | 69.5°F | 66.9°F | 66.6°F |
| Deauville | 69.4°F | 66.7°F | 66.9°F |
| Etretat | 69.4°F | 67.0°F | 66.8°F |
| Le Havre | 69.4°F | 66.6°F | 66.9°F |
| Rennes | 69.1°F | 66.6°F | 66.4°F |
Please see following sea water temperature averages charts for the warmest France 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.
France Resorts:
NAME
F°
| Antibes |  |
+74 |
| Bordeaux | |
+70 |
| Cannes | |
+74 |
| Corsica |  |
+72 |
| Deauville | |
+64 |
| Etretat |  |
+66 |
| Marseilles | |
+76 |
| Menton |  |
+76 |
| Montpellier | |
+74 |
| Nice | |
+68 |
| Paris | |
+70 |
| Perpignan | |
+74 |
| Saint-Tropez | |
+74 |
| Toulon | |
+76 |
| Toulouse | |
+70 |
