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Warmest sea in France in December

477 coastal locations in France ranked by their typical December sea temperature. Region-wide average in December: 12.8°C. The top of the list is where to find the warmest swimming this month.

Warmest in December

lies Wallis (Mata-Utu)

29.6°C December mean in France

Regional December average

12.8°C

across all 477 coastal locations in France

Vs annual mean

-2.5°C

below the year-round regional average

What the France sea feels like in December

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

France monthly average 10.9°C to 20.3°C
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  • Warmest month August 20.3°C
  • Coldest month February 10.9°C
  • Annual mean 15.3°C
  • Months above 20°C 1 of 12

Where December fits in the year

December sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve France month rankings:

France sea temperature map (live)

The map shows today's latest reading at every France location. The list below is based on the typical December mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest France locations in December

Sorted by the typical December mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location December mean
1 lies Wallis (Mata-Utu) Hahake 29.6°C
2 Clipperton-D Overseas France 27.7°C
3 Ajaccio Aspretto Corse 16.4°C
4 Ajaccio Corse 16.4°C
5 Centuri Corse 16.3°C
6 Evian-les-Bains 16.2°C
7 l'Île-Rousse Corse 16.2°C
8 Annecy 16.1°C
9 Solenzara Corsica 16.1°C
10 Aix-les-Bains 16.0°C
11 Lac d'Aiguebelette 16.0°C
12 Lake Bourget 16.0°C
13 Lyon 16.0°C
14 Thonon-les-Bains 16.0°C
15 Menton 15.9°C
16 Roquebrune-Cap-Martin 15.9°C
17 Lake of Sainte-Croix 15.8°C
18 Mandelieu-la-Napoule 15.7°C
19 Theoule-sur-Mer 15.7°C
20 Vinon-sur-Verdon 15.7°C
21 Antibes 15.6°C
22 Cagnes-sur-Mer 15.6°C
23 Cannes 15.6°C
24 Golfe-Juan 15.6°C
25 Juan-les-Pins 15.6°C
Show 25 more ▸
26 Saint-Laurent-du-Var 15.6°C
27 Sainte Marguerite Island 15.6°C
28 Villeneuve-Loubet 15.6°C
29 Cote d'Azur 15.6°C
30 Frejus 15.6°C
31 Les Issambres 15.6°C
32 Port Grimaud 15.6°C
33 Saint-Aygulf 15.6°C
34 Saint-Tropez 15.6°C
35 Sainte-Maxime 15.6°C
36 Agay 15.4°C
37 Saint-Raphael 15.4°C
38 Beaulieu-sur-Mer 15.4°C
39 Cap d'Ail 15.4°C
40 Cap Estel 15.4°C
41 Cap Ferrat 15.4°C
42 Eze 15.4°C
43 Nice 15.4°C
44 Saint-Jean-Cap-Ferrat 15.4°C
45 Villefranche-sur-Mer 15.4°C
46 Carqueiranne 15.3°C
47 Hyeres 15.3°C
48 La Londe-les-Maures 15.3°C
49 Le Pradet 15.3°C
50 Porquerolles 15.3°C

Coldest 10 in France in December

Same data the other way. Helpful if you want to know which France coasts to avoid for swimming in December.

# Location December mean
1 Sainte-Marie-sur-Mer 2.2°C
2 Rhine (near Strasbourg) 8.7°C
3 Bray Dunes 10.2°C
4 Pas de Calais 10.3°C
5 Dunkerque Hauts-de-France 10.4°C
6 Cayeux Hauts-de-France 10.4°C
7 Le Crotoy 10.5°C
8 Paimbœuf Pays de la Loire 10.5°C
9 Paris 10.5°C
10 Saint Valery Sur Somme 10.5°C

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