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Coldest sea in Canada in August

829 coastal locations in Canada ranked by typical August sea temperature, coldest first. Region-wide average in August: 14.4°C.

Coldest in August

Alert

-1.6°C August mean in Canada

Regional August average

14.4°C

across all 829 coastal locations in Canada

Vs annual mean

+7.4°C

above the year-round regional average

What the Canada sea feels like in August

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.

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 August fits in the year

August 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 August 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 August

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

# Location August mean
1 Alert Nunavut -1.6°C
2 Cape Sheridan Nunavut -1.6°C
3 Wrangel Bay Nunavut -1.5°C
4 Isachsen Nunavut -1.5°C
5 Discovery Harbour Nunavut -1.4°C
6 Airstrip Point Nunavut -1.3°C
7 Cameron Island Nunavut -1.3°C
8 Greely Fiord Nunavut -1.3°C
9 Iceberg Point Nunavut -1.1°C
10 Cape Barclay Nunavut -1.0°C
11 Dease Peninsula Nunavut -0.9°C
12 Hamilton Island Nunavut -0.8°C
13 Pim Island Nunavut -0.8°C
14 Cape Sibbald Nunavut -0.8°C
15 Entrance Island Nunavut -0.8°C
16 Crown Prince Frederick Island Nunavut -0.7°C
17 Little Cornwallis Island Nunavut -0.7°C
18 Cape Capel Nunavut -0.6°C
19 Peel Point Northwest Territories -0.5°C
20 Crown Prince Frederick Nunavut -0.3°C
21 Natkusiak Peninsula Northwest Territories -0.3°C
22 Bay of Woe Nunavut -0.1°C
23 Winter Harbour Northwest Territories -0.1°C
24 Resolute Nunavut 0.0°C
25 Cape Kater Nunavut 0.2°C
Show 25 more ▸
26 Grise Fiord Nunavut 0.2°C
27 Baffin Nunavut 0.3°C
28 False Strait Nunavut 0.3°C
29 Purfur Cove Nunavut 0.3°C
30 Lavoie Islands (Bernier Bay) Nunavut 0.4°C
31 Cape Skogn Nunavut 0.7°C
32 Beechey Island Nunavut 0.7°C
33 Erebus Bay Nunavut 0.7°C
34 Radstock Bay Nunavut 1.0°C
35 Martin Islands Nunavut 1.1°C
36 Bonne Island Nunavut 1.4°C
37 Rigby Bay Nunavut 1.4°C
38 King Charles Cape Nunavut 1.4°C
39 Fury Point Nunavut 1.5°C
40 Frobisher's Farthest Nunavut 1.5°C
41 Resor Island Nunavut 1.5°C
42 Lewis Bay Nunavut 1.6°C
43 Iqaluit Nunavut 1.6°C
44 Oscar Bay Nunavut 1.6°C
45 Iqaluit (Frobisher Bay) Nunavut 1.6°C
46 Williams Harbour Newfoundland and Labrador 1.6°C
47 Arctic Bay Nunavut 1.8°C
48 Bellot Strait East Nunavut 1.9°C
49 Port Burwell Nunavut 1.9°C
50 Fort Ross Nunavut 2.0°C

Warmest 10 in Canada in August

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

# Location August mean
1 Colchester Ontario 24.6°C
2 Pelee Island Ontario 24.6°C
3 Point Pelee Ontario 24.6°C
4 Mitchell's Bay Ontario 24.1°C
5 Chatham-Kent Ontario 24.1°C
6 Fort Erie Ontario 23.7°C
7 Crystal Beach Ontario 23.6°C
8 Port Stanley Ontario 23.5°C
9 Port Colborne Ontario 23.5°C
10 Port Burwell Ontario 23.5°C

More on this region