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Coldest sea in North America in April

5,500 coastal locations in North America ranked by typical April sea temperature, coldest first. Region-wide average in April: 12.2°C.

Coldest in April

Cameron Island

-1.7°C April mean in Canada

Regional April average

12.2°C

across all 5,500 coastal locations in North America

Vs annual mean

-2.9°C

below the year-round regional average

What the North America sea feels like in April

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.

North America monthly average 9.3°C to 21.6°C
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  • Warmest month August 21.6°C
  • Coldest month February 9.3°C
  • Annual mean 15.2°C
  • Months above 20°C 3 of 12

Where April fits in the year

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

All twelve North America month rankings:

North America sea temperature map (live)

The map shows today's latest reading at every North America location. The list below is based on the typical April 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 North America locations in April

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

# Location April mean
1 Cameron Island Nunavut -1.7°C
2 Grise Fiord Nunavut -1.7°C
3 Dundas Harbour Nunavut -1.7°C
4 Pisiktarfik Island Nunavut -1.7°C
5 Airstrip Point Nunavut -1.7°C
6 Iceberg Point Nunavut -1.7°C
7 Radstock Bay Nunavut -1.7°C
8 Beechey Island Nunavut -1.7°C
9 Erebus Bay Nunavut -1.7°C
10 Brevoort Harbour Nunavut -1.7°C
11 Hamilton Island Nunavut -1.7°C
12 Wrangel Bay Nunavut -1.7°C
13 Point Hope Alaska -1.7°C
14 Cape Capel Nunavut -1.6°C
15 Milne Inlet Nunavut -1.6°C
16 Sugluk Québec -1.6°C
17 Whale Cove Nunavut -1.6°C
18 Ashe Inlet Nunavut -1.6°C
19 Cape Sheridan Nunavut -1.6°C
20 Doctor Island Nunavut -1.6°C
21 Port Burwell Nunavut -1.6°C
22 Rigby Bay Nunavut -1.6°C
23 Ulukhaktok Northwest Territories -1.6°C
24 Barrow Alaska -1.6°C
25 Cape Krusenstern, Kotzebue Sound Alaska -1.6°C
Show 25 more ▸
26 Kivalina Alaska -1.6°C
27 Northeast Cape, St. Lawrence Island Alaska -1.6°C
28 Alert Nunavut -1.6°C
29 Cape Dalhousie Northwest Territories -1.6°C
30 Cape Kater Nunavut -1.6°C
31 Deception Bay Quebec -1.6°C
32 Fury Point Nunavut -1.6°C
33 Norton Island Nunavut -1.6°C
34 Marble Island Nunavut -1.6°C
35 Pangnirtung Nunavut -1.6°C
36 Flaxman Island Alaska -1.6°C
37 Fossil River entrance, St. Lawrence Island, Alaska Alaska -1.6°C
38 Outside Lopp Lagoon Alaska -1.6°C
39 Savoonga, St. Lawrence Island Alaska -1.6°C
40 Tin City, Bering Sea Alaska -1.6°C
41 Coral Harbour Nunavut -1.6°C
42 Discovery Harbour Nunavut -1.6°C
43 Pim Island Nunavut -1.6°C
44 Sachs Harbour Northwest Territories -1.6°C
45 Cape Espenberg, Kotzebue Sound Alaska -1.6°C
46 Red Dog Dock Alaska -1.6°C
47 Frobisher's Farthest Nunavut -1.6°C
48 Iqaluit (Frobisher Bay) Nunavut -1.6°C
49 Iqaluit Nunavut -1.6°C
50 Lewis Bay Nunavut -1.6°C

Warmest 10 in North America in April

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

# Location April mean
1 Puerto Chiapas Chiapas 29.8°C
2 Puerto Arista Chiapas 29.7°C
3 Mazunte Oaxaca 28.9°C
4 San Agustinillo Oaxaca 28.9°C
5 Zipolite beach Oaxaca 28.9°C
6 Brisas de Zicatela Oaxaca 28.9°C
7 Puerto Escondido Oaxaca 28.9°C
8 Pochutla Oaxaca 28.8°C
9 Puerto Angel Oaxaca 28.8°C
10 La Crucecita Oaxaca 28.6°C

More on this region