The France resorts with the warmest sea water temperature in September are Bastia, Roquebrune Cap Martin and Menton.
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 2023 | September 2022 | September 2021 |
|---|---|---|---|
| Bastia | 78.3°F | 80.9°F | 78.7°F |
| Roquebrune Cap Martin | 77.9°F | 80.1°F | 77.7°F |
| Menton | 77.8°F | 80.0°F | 77.6°F |
| Saint Jean Cap Ferrat | 77.8°F | 80.2°F | 77.7°F |
| Portivecju | 77.8°F | 80.8°F | 79.0°F |
| Theoule Sur Mer | 77.6°F | 79.6°F | 77.5°F |
| Mandelieu la Napoule | 77.6°F | 79.6°F | 77.5°F |
| Nice | 77.6°F | 80.1°F | 77.6°F |
| Cannes | 77.6°F | 79.7°F | 77.5°F |
| Golfe Juan | 77.6°F | 79.8°F | 77.4°F |
| Antibes | 77.6°F | 79.8°F | 77.4°F |
| Juan les Pins | 77.6°F | 79.8°F | 77.4°F |
| Bunifaziu | 77.5°F | 80.3°F | 78.7°F |
| Saint Laurent du Var | 77.5°F | 80.0°F | 77.4°F |
| Cagnes sur Mer | 77.5°F | 79.9°F | 77.4°F |
| Frejus | 77.0°F | 79.4°F | 77.3°F |
| Cavalaire sur Mer | 76.9°F | 78.9°F | 77.0°F |
| Saint-Tropez | 76.9°F | 79.2°F | 77.2°F |
| Calvi | 76.9°F | 80.4°F | 78.5°F |
| Le Lavandou | 76.9°F | 78.6°F | 76.7°F |
| Sainte Maxime | 76.8°F | 79.2°F | 77.2°F |
| La Londe les Maures | 76.8°F | 78.2°F | 76.6°F |
| Cassis | 76.6°F | 76.8°F | 75.4°F |
| La Ciotat | 76.6°F | 76.8°F | 75.4°F |
| Aiacciu | 76.6°F | 80.7°F | 78.8°F |
| Marseilles | 76.5°F | 76.3°F | 74.3°F |
| Saint Syr Sur Mer | 76.4°F | 77.0°F | 75.5°F |
| Bandol | 76.4°F | 77.2°F | 75.8°F |
| Corsica | 76.4°F | 80.7°F | 78.5°F |
| Propriano | 76.3°F | 79.9°F | 78.3°F |
| Sanary-sur-Mer | 76.3°F | 77.2°F | 75.8°F |
| La Seyne sur Mer | 76.2°F | 77.3°F | 75.8°F |
| Toulon | 76.2°F | 77.4°F | 75.9°F |
| Le Grau Du Roi | 75.9°F | 75.9°F | 74.4°F |
| Avignon | 75.7°F | 75.5°F | 73.8°F |
| Biarritz | 75.5°F | 74.3°F | 71.3°F |
| Montpellier | 75.5°F | 75.9°F | 74.2°F |
| Perpignan | 75.4°F | 76.4°F | 74.7°F |
| Palavas les Flots | 75.1°F | 76.0°F | 74.2°F |
| Frontignan | 74.7°F | 76.3°F | 74.2°F |
| Narbonne | 74.7°F | 75.9°F | 73.6°F |
| Beziers | 74.4°F | 75.4°F | 73.0°F |
| Arcachon | 74.2°F | 73.0°F | 70.8°F |
| Bordeaux | 73.8°F | 73.6°F | 70.7°F |
| Avoriaz | 73.8°F | 71.3°F | 70.2°F |
| La Rochelle | 73.5°F | 71.1°F | 69.7°F |
| Evian-les-Bains | 73.3°F | 71.1°F | 70.1°F |
| Chamonix | 72.9°F | 71.2°F | 70.0°F |
| Megeve | 72.7°F | 70.9°F | 69.4°F |
| Annecy | 72.4°F | 70.6°F | 69.0°F |
| Le Havre | 69.8°F | 68.8°F | 67.5°F |
| Deauville | 69.7°F | 69.1°F | 67.6°F |
| Saint Malo | 69.0°F | 68.7°F | 67.0°F |
| Etretat | 69.0°F | 69.3°F | 66.9°F |
| Rennes | 68.5°F | 68.1°F | 66.5°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°
| Annecy |  |
+62 |
| Antibes |  |
+64 |
| Biarritz |  |
+62 |
| Bordeaux | |
+74 |
| Cannes | |
+66 |
| Corsica |  |
+64 |
| Etretat |  |
+56 |
| La Rochelle | |
+68 |
| Marseilles | |
+68 |
| Menton | |
+64 |
| Montpellier | |
+72 |
| Nice | |
+62 |
| Paris | |
+70 |
| Saint-Tropez | |
+68 |
| Toulouse | |
+64 |
