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Warmest sea in Canada in December

829 coastal locations in Canada ranked by their typical December sea temperature. Region-wide average in December: 4.2°C. The top of the list is where to find the warmest swimming this month.

Warmest in December

Cobb Seamount

10.7°C December mean in Canada

Regional December average

4.2°C

across all 829 coastal locations in Canada

Vs annual mean

-2.8°C

below the year-round regional average

What the Canada sea feels like in December

Water at this temperature is freezing cold, can cause pain and takes your breath away. Unless you are very experienced and are under strict supervision, swimming in this water for more than a few minutes can be very dangerous. Be careful, stay safe, and enjoy the rush of endorphins and exhilaration from a brief cold water swim.

Canada monthly average 1.8°C to 14.4°C
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  • Warmest month August 14.4°C
  • Coldest month February 1.8°C
  • Annual mean 7.0°C
  • Months above 20°C 0 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 Canada month rankings:

Canada sea temperature map (live)

The map shows today's latest reading at every Canada 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 Canada 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 Cobb Seamount British Columbia 10.7°C
2 Ucluelet British Columbia 9.9°C
3 Tofino British Columbia 9.8°C
4 Bamfield British Columbia 9.7°C
5 Kennedy Cove British Columbia 9.4°C
6 Riley Cove British Columbia 9.4°C
7 Sulphur Passage British Columbia 9.4°C
8 Union Seamount British Columbia 9.4°C
9 Effingham Bay British Columbia 9.4°C
10 Stopper Islands British Columbia 9.4°C
11 Kyuquot British Columbia 9.3°C
12 Cape Scott British Columbia 9.3°C
13 Gold River British Columbia 9.3°C
14 Zeballos British Columbia 9.2°C
15 Port San Juan (Port Renfrew) British Columbia 9.1°C
16 Winter Harbour British Columbia 9.1°C
17 Ceepeecee British Columbia 9.1°C
18 Saavedra Islands British Columbia 9.1°C
19 Point No Point British Columbia 8.8°C
20 Becher Bay British Columbia 8.8°C
21 Pedder Bay British Columbia 8.8°C
22 Sooke Basin British Columbia 8.8°C
23 Oak Bay British Columbia 8.8°C
24 Sooke British Columbia 8.8°C
25 Cowichan Bay British Columbia 8.8°C
Show 25 more ▸
26 Victoria British Columbia 8.8°C
27 Cape St. James British Columbia 8.7°C
28 Gordon Islands British Columbia 8.7°C
29 Heater Harbour British Columbia 8.7°C
30 Rose Harbour British Columbia 8.7°C
31 Copper Islands British Columbia 8.6°C
32 Hunger Harbour British Columbia 8.6°C
33 Armentieres Channel British Columbia 8.6°C
34 Burnaby Island (Section Cove) British Columbia 8.6°C
35 Dawson Harbour British Columbia 8.6°C
36 Sedgwick Bay British Columbia 8.6°C
37 Bedwell Harbour British Columbia 8.6°C
38 Shields Bay British Columbia 8.5°C
39 Addenbroke Island British Columbia 8.5°C
40 Borrowman Bay British Columbia 8.5°C
41 Egg Island British Columbia 8.5°C
42 Mckenney Islands British Columbia 8.5°C
43 Port Louis British Columbia 8.5°C
44 Digby Nova Scotia 8.5°C
45 Blubber Bay British Columbia 8.4°C
46 Channel Island British Columbia 8.4°C
47 Gorge Harbour British Columbia 8.4°C
48 Lund British Columbia 8.4°C
49 Mitlenatch Island British Columbia 8.4°C
50 Prideaux Haven British Columbia 8.4°C

Coldest 10 in Canada in December

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

# Location December mean
1 Dundas Harbour Nunavut -1.7°C
2 Grise Fiord Nunavut -1.7°C
3 Iceberg Point Nunavut -1.7°C
4 Cameron Island Nunavut -1.7°C
5 Radstock Bay Nunavut -1.7°C
6 Wrangel Bay Nunavut -1.7°C
7 Airstrip Point Nunavut -1.7°C
8 Beechey Island Nunavut -1.6°C
9 Cape Sheridan Nunavut -1.6°C
10 Erebus Bay Nunavut -1.6°C

More on this region