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Coldest sea in France in December

477 coastal locations in France ranked by typical December sea temperature, coldest first. Region-wide average in December: 12.8°C.

Coldest in December

Sainte-Marie-sur-Mer

2.2°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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D
  • 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.

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 coldest France locations in December

Sorted by typical December mean from a decade of daily readings, coldest first. Click any place for the full location page.

# 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
11 St. Nazaire Pays de la Loire 10.5°C
12 Barbatre 10.5°C
13 Corsept 10.5°C
14 La Barre De Monts 10.5°C
15 La Gueriniere 10.5°C
16 Nantes 10.5°C
17 Saint-Jean-de-Monts 10.5°C
18 Saint-Nazaire 10.5°C
19 Le Val Saint Pere 10.5°C
20 Rennes Brittany 10.5°C
21 Dives Normandie 10.6°C
22 Le Senequet Normandy 10.6°C
23 Gouville-sur-Mer Normandy 10.6°C
24 Mont-Saint-Michel Normandy 10.6°C
25 Coutances 10.7°C
Show 25 more ▸
26 Granville Normandy 10.7°C
27 Jullouville Normandy 10.7°C
28 La Manche 10.7°C
29 Portbail 10.7°C
30 Saint Pair Sur Mer Normandy 10.7°C
31 Benerville-sur-Mer 10.8°C
32 Blonville-sur-Mer 10.8°C
33 Deauville Normandy 10.8°C
34 Honfleur 10.8°C
35 Le Havre Normandy 10.8°C
36 Touques 10.8°C
37 Trouville-sur-Mer Normandy 10.8°C
38 Villerville 10.8°C
39 Dieppe Normandy 10.8°C
40 Antifer (Le Havre) Normandie 10.8°C
41 Dunkirk 10.8°C
42 Malo-les-Bains 10.8°C
43 Ault 10.8°C
44 Cayeux Sur Mer 10.8°C
45 Le Treport 10.8°C
46 Caen Normandy 10.9°C
47 Batz Sur Mer 10.9°C
48 Guerande 10.9°C
49 La Baule-Escoublac 10.9°C
50 Le Pouliguen 10.9°C

Warmest 10 in France in December

Same data the other way. The warmest spots for the same month.

# 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

More on this region