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Coldest sea in North America in July

5,500 coastal locations in North America ranked by typical July sea temperature, coldest first. Region-wide average in July: 21.0°C.

Coldest in July

Cape Sheridan

-1.6°C July mean in Canada

Regional July average

21.0°C

across all 5,500 coastal locations in North America

Vs annual mean

+5.8°C

above the year-round regional average

What the North America sea feels like in July

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

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 July fits in the year

July 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 July 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 July

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

# Location July mean
1 Cape Sheridan Nunavut -1.6°C
2 Iceberg Point Nunavut -1.6°C
3 Alert Nunavut -1.6°C
4 Wrangel Bay Nunavut -1.6°C
5 Cameron Island Nunavut -1.5°C
6 Hamilton Island Nunavut -1.5°C
7 Isachsen Nunavut -1.5°C
8 Discovery Harbour Nunavut -1.5°C
9 Cape Barclay Nunavut -1.4°C
10 Cape Capel Nunavut -1.4°C
11 Crown Prince Frederick Island Nunavut -1.4°C
12 Martin Islands Nunavut -1.4°C
13 Grise Fiord Nunavut -1.4°C
14 Crown Prince Frederick Nunavut -1.4°C
15 Cape Kater Nunavut -1.3°C
16 Little Cornwallis Island Nunavut -1.3°C
17 Cape Sibbald Nunavut -1.3°C
18 Dease Peninsula Nunavut -1.3°C
19 Greely Fiord Nunavut -1.3°C
20 Entrance Island Nunavut -1.3°C
21 Airstrip Point Nunavut -1.2°C
22 Pim Island Nunavut -1.1°C
23 Lavoie Islands (Bernier Bay) Nunavut -1.1°C
24 Peel Point Northwest Territories -1.1°C
25 Kivitoo Nunavut -1.1°C
Show 25 more ▸
26 Cape Skogn Nunavut -1.1°C
27 False Strait Nunavut -1.1°C
28 Resolute Nunavut -1.0°C
29 Bay of Woe Nunavut -1.0°C
30 Clyde River Nunavut -0.8°C
31 Cape Hooper Nunavut -0.8°C
32 Sévigny Point Nunavut -0.8°C
33 Cape Dyer Nunavut -0.8°C
34 Natkusiak Peninsula Northwest Territories -0.7°C
35 Winter Harbour Northwest Territories -0.7°C
36 Bonne Island Nunavut -0.6°C
37 Oscar Bay Nunavut -0.6°C
38 Purfur Cove Nunavut -0.5°C
39 Arctic Bay Nunavut -0.5°C
40 Baffin Nunavut -0.5°C
41 Clyde River Nunavut -0.5°C
42 Bellot Strait East Nunavut -0.3°C
43 Prudhoe Bay #2 Alaska -0.3°C
44 Fort Ross Nunavut -0.3°C
45 Radstock Bay Nunavut -0.3°C
46 Cambridge Bay Nunavut -0.2°C
47 Beechey Island Nunavut -0.2°C
48 Erebus Bay Nunavut -0.2°C
49 Cross Island (Dinkum Sands) Alaska -0.1°C
50 Gjoa Haven Nunavut -0.1°C

Warmest 10 in North America in July

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

# Location July mean
1 Apollo Beach Florida 30.8°C
2 Bayshore Gardens Florida 30.8°C
3 Bradenton Florida 30.8°C
4 Coquina Beach Florida 30.8°C
5 Cortez Florida 30.8°C
6 Cypress Point Park Florida 30.8°C
7 Feather Sound Florida 30.8°C
8 Gandy Florida 30.8°C
9 Gibsonton Florida 30.8°C
10 Gulf Gate Estates Florida 30.8°C

More on this region