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Photo: Lebrouillard · CC BY-SA 3.0
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Water temperature in France

Atlantic 29.8 °C, Mediterranean 24.3 °C, English Channel 18.2 °C. The coldest spot is La Touvre, La Touvre au Gond-Pontouvre at 12.9 °C. As of October 16, 2026, 2,144 locations from Copernicus Marine Service and Hub'Eau.

29.9 °C
Modelwarmest spot · Karibik, Petit-Canal, Anse Maurice
12.9 °C
coldest · La Touvre, La Touvre au Gond-Pontouvre
20.6 °C
average of all spots
2,144
locations

Updated on October 16, 2026

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The warmest spot of each kind of water

Good to know

Swimming along France's three coastlines

France faces the Channel, the Atlantic and the Mediterranean, and its overseas territories add the Caribbean and the Indian Ocean. The Mediterranean coast has the longest season, starting early in summer and often lasting well into autumn. Brittany and the Channel coast stay cooler and tend to feel their best in August, with the Atlantic shore from the Loire to the Basque Country somewhere in between. Alpine lakes such as Lac d'Annecy, Lac du Bourget and Lake Geneva usually peak in late summer.

Most of the 2144 sites come from the official list of coastal bathing sites published by the health ministry through Atlasanté. Water temperatures at these sites are modelled by the Open-Meteo marine model rather than measured, and the app marks them as model values. Measured readings come from buoys and coastal stations distributed by the Copernicus Marine Service, with a handful of river gauges from Hub'Eau. For the Savoy lakes and Lake Geneva, BrrChecker uses the Alplakes lake models.

Regional health agencies sample every official bathing site during the season, and each one receives an EU bathing water rating from excellent to poor. On the Atlantic, surf and rip currents deserve respect, so it is worth swimming at lifeguarded beaches and following the flags. In the south, a Mistral wind can push the warm surface layer offshore, and the sea near the beach may be noticeably colder for a day or two afterwards.

Regions

France, region by region

8 regions, each with today's range and its best-known spots. Tap one to open the region's list.

Atlantic
Photo: Lebrouillard · CC BY-SA 3.0
Atlantic15.1–29.8 °C
955 coasts & beaches
Atlantic, Remire-Montjoly, Plage du Gosselin 29.8 °C · Atlantic, Remire-Montjoly, Plage du Rorota 29.8 °C · Atlantic, Remire-Montjoly, Montjoly-Plage Louis Caristan 29.8 °C
Mediterranean
Photo: Michal Osmenda from Brussels, Belgium · CC BY 2.0
Mediterranean20.8–24.3 °C
755 coasts & beaches
Mediterranean, Ghisonaccia, Tour de Vignale 24.3 °C · Mediterranean, Prunelli-Di-Fiumorbo, Calzarellu 24.2 °C · Mediterranean, Serra-Di-Fiumorbo, PLAGE U Quarcione 24.2 °C
English Channel
Photo: Jarosław Baranowski · CC BY-SA 3.0
English Channel16.8–18.2 °C
211 coasts & beaches
English Channel, Colleville-sur-Mer, Plage du Village de Vacances 18.2 °C · English Channel, Saint-Laurent-sur-Mer, Les Moulins 18.2 °C · English Channel, Vierville-sur-Mer, Plage du Monument 18.2 °C
Karibik
Photo: Enrevseluj · CC BY-SA 4.0
Karibik29.1–29.9 °C
170 coasts & beaches
Karibik, Petit-Canal, Anse Maurice 29.9 °C · Karibik, Gosier (le), Petit Havre 29.8 °C · Karibik, Gosier (le), Pte de la Verdure 29.8 °C
Indian Ocean
Photo: Morbi Ney · CC BY-SA 2.0
Indian Ocean24.5–29.4 °C
41 coasts & beaches
Indian Ocean, Bandraboua, Mgouedajou 29.4 °C · Indian Ocean, Dembeni, Iloni 29.4 °C · Indian Ocean, Koungou, Longoni 29.4 °C
Lac d'Annecy
Photo: Guilhem Vellut from Annecy, France · CC BY 2.0
Lac d'Annecy18.4 °C
2 lakes
Lac d'Annecy, Annecy, Plage d'Albigny 18.4 °C · Lac d'Annecy, Talloires 18.4 °C
Lac du Bourget
Photo: Florian Pépellin · CC BY-SA 4.0
Lac du Bourget18.3 °C
2 lakes
Lac du Bourget, Aix-les-Bains, Le Rowing 18.3 °C · Lac du Bourget, Le Bourget-du-Lac 18.3 °C
Lac Léman
Photo: Dmitry A. Mottl · CC BY-SA 4.0
Lac Léman16.7 °C
2 lakes
Lac Léman, Thonon-les-Bains 16.7 °C · Lac Léman, Évian-les-Bains 16.6 °C
Right now

2,144 spots, 3 kinds of water

6 lakes5 rivers2,133 coasts & beaches

283 readings are measurements from official and open networks, above all Copernicus Marine Service and Hub'Eau; 1,861 values come from models. Beyond temperature, this page carries 1,893 official bathing-water ratings, tides for 1,188 coastal spots and wave height at 2,118 buoys.

© BrrChecker – all rights reserved. The compilation, texts, images and BrrScore are protected; the readings belong to the sources named. Automated extraction is not permitted.

About the data

France is coastline: Atlasanté lists the official bathing sites from Brittany to the Côte d'Azur with the season's samples, the marine model fills the open sea, Hub'Eau adds river measurements, and Lake Geneva comes via Alplakes.

All spots

By region, with today's reading

Atlantic955 spots
Atlantic, BiarritzModel20.5 °C
Atlantic, AngletModel20.3 °C
Atlantic, HossegorModel20.2 °C
Atlantic, ArcachonModel19.8 °C
Atlantic, MimizanModel19.8 °C
and 835 more spots in the app
Mediterranean755 spots
and 635 more spots in the app
English Channel211 spots
and 91 more spots in the app
Karibik170 spots
and 50 more spots in the app
Indian Ocean41 spots
Lac d'Annecy2 spots
Lac du Bourget2 spots
Lac Léman2 spots
Other waters and lidos6 spots
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