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Coldest sea in Canada in May

829 coastal locations in Canada ranked by typical May sea temperature, coldest first. Region-wide average in May: 5.3°C.

Coldest in May

Grise Fiord

-1.7°C May mean in Canada

Regional May average

5.3°C

across all 829 coastal locations in Canada

Vs annual mean

-1.7°C

below the year-round regional average

What the Canada sea feels like in May

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

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 May fits in the year

May 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 May 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 May

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

# Location May mean
1 Grise Fiord Nunavut -1.7°C
2 Cameron Island Nunavut -1.7°C
3 Iceberg Point Nunavut -1.7°C
4 Wrangel Bay Nunavut -1.7°C
5 Airstrip Point Nunavut -1.7°C
6 Brevoort Harbour Nunavut -1.6°C
7 Alert Nunavut -1.6°C
8 Cape Sheridan Nunavut -1.6°C
9 Radstock Bay Nunavut -1.6°C
10 Hamilton Island Nunavut -1.6°C
11 Beechey Island Nunavut -1.6°C
12 Cape Kater Nunavut -1.6°C
13 Erebus Bay Nunavut -1.6°C
14 Cape Capel Nunavut -1.6°C
15 Discovery Harbour Nunavut -1.6°C
16 Fury Point Nunavut -1.6°C
17 Dundas Harbour Nunavut -1.6°C
18 Sévigny Point Nunavut -1.6°C
19 Cambridge Bay Nunavut -1.6°C
20 Port Burwell Nunavut -1.6°C
21 Doctor Island Nunavut -1.6°C
22 Rigby Bay Nunavut -1.6°C
23 Ford Harbour Newfoundland and Labrador -1.6°C
24 Kivitoo Nunavut -1.6°C
25 Postville Newfoundland and Labrador -1.6°C
Show 25 more ▸
26 Quaqtaq (Koartac) Quebec -1.6°C
27 Sugluk Québec -1.6°C
28 Cape Dyer Nunavut -1.5°C
29 Cape Skogn Nunavut -1.5°C
30 Isachsen Nunavut -1.5°C
31 Martin Islands Nunavut -1.5°C
32 Resolute Nunavut -1.5°C
33 Shoal Tickle Newfoundland and Labrador -1.5°C
34 Norton Island Nunavut -1.5°C
35 Port de Boucherville Nunavut -1.5°C
36 Whale Cove Nunavut -1.5°C
37 Crown Prince Frederick Island Nunavut -1.5°C
38 Davis Inlet Newfoundland and Labrador -1.5°C
39 Deception Bay Quebec -1.5°C
40 Little Cornwallis Island Nunavut -1.5°C
41 Pisiktarfik Island Nunavut -1.5°C
42 Cape Barclay Nunavut -1.5°C
43 Panorama Island Nunavut -1.5°C
44 Williams Harbour Newfoundland and Labrador -1.5°C
45 Port de Laperriere Nunavut -1.5°C
46 Crown Prince Frederick Nunavut -1.5°C
47 Nain Newfoundland and Labrador -1.5°C
48 Digges Harbour Nunavut -1.5°C
49 Pim Island Nunavut -1.5°C
50 Turnavik Island Newfoundland and Labrador -1.5°C

Warmest 10 in Canada in May

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

# Location May mean
1 Sechelt British Columbia 13.7°C
2 Nanaimo British Columbia 13.7°C
3 Squamish British Columbia 13.7°C
4 Parksville British Columbia 13.5°C
5 Qualicum Beach British Columbia 13.5°C
6 Colchester Ontario 13.5°C
7 Harmac British Columbia 13.5°C
8 Powell River British Columbia 13.4°C
9 Port Alberni British Columbia 13.4°C
10 Hornby Island British Columbia 13.4°C

More on this region