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Coldest sea in Canada in December

829 coastal locations in Canada ranked by typical December sea temperature, coldest first. Region-wide average in December: 4.2°C.

Coldest in December

Dundas Harbour

-1.7°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.

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 Canada 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 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
11 Alert Nunavut -1.6°C
12 Hamilton Island Nunavut -1.6°C
13 Pim Island Nunavut -1.6°C
14 Rigby Bay Nunavut -1.6°C
15 Cape Capel Nunavut -1.6°C
16 Cape Kater Nunavut -1.6°C
17 Milne Inlet Nunavut -1.6°C
18 Pisiktarfik Island Nunavut -1.6°C
19 Discovery Harbour Nunavut -1.6°C
20 Fury Point Nunavut -1.6°C
21 Whale Cove Nunavut -1.6°C
22 Cambridge Bay Nunavut -1.6°C
23 Norton Island Nunavut -1.6°C
24 Sévigny Point Nunavut -1.6°C
25 Marble Island Nunavut -1.6°C
Show 25 more ▸
26 Sachs Harbour Northwest Territories -1.6°C
27 Chesterfield Inlet Nunavut -1.6°C
28 Panorama Island Nunavut -1.6°C
29 Rankin Inlet Nunavut -1.6°C
30 Resolute Nunavut -1.5°C
31 Ulukhaktok Northwest Territories -1.5°C
32 Isachsen Nunavut -1.5°C
33 Martin Islands Nunavut -1.5°C
34 Cape Skogn Nunavut -1.5°C
35 Little Cornwallis Island Nunavut -1.5°C
36 Cape Barclay Nunavut -1.5°C
37 Cape Parry Northwest Territories -1.5°C
38 Coral Harbour Nunavut -1.5°C
39 Crown Prince Frederick Island Nunavut -1.5°C
40 Eskimo Point Nunavut -1.5°C
41 Franklin Bay Northwest Territories -1.5°C
42 Eldorado Saskatchewan -1.5°C
43 Goldfields Saskatchewan -1.5°C
44 Cape Dalhousie Northwest Territories -1.5°C
45 Crown Prince Frederick Nunavut -1.5°C
46 Kivitoo Nunavut -1.5°C
47 Tysoe Point Northwest Territories -1.5°C
48 Arctic Bay Nunavut -1.5°C
49 Cape Dyer Nunavut -1.4°C
50 Cape Hooper Nunavut -1.4°C

Warmest 10 in Canada in December

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

# 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

More on this region