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Coldest beach in Alaska in October

653 coastal locations in Alaska ranked by their typical October sea temperature. State-wide average in October: 9.0°C.

Coldest in October

Barter Island

0.3°C

State October average

9.0°C

across 653 coastal locations in Alaska

Vs annual mean

+1.6°C

above the year-round state average

What the Alaska water feels like in October

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.

Alaska monthly average 3.9°C to 12.5°C
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  • Warmest month August 12.5°C
  • Coldest month March 3.9°C
  • Annual mean 7.4°C
  • Months above 20°C 0 of 12

Where October fits in the year

October sits inside the state pattern shown on the left. Browse a different month for a fresh ranking.

Alaska sea temperature map (live)

Today's reading at every Alaska beach we track. The list below uses the typical October mean from a decade of daily history.

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 Alaska beaches in October

Sorted by typical October mean. Click any beach for the full location page.

# Location October mean
1 Dall Point, Hooper Bay Alaska 5.6°C
2 Carolyn Island, Golovnin Bay, Alaska Alaska 5.4°C
3 Carolyn Island, Golovnin Bay, Norton Sound, Alaska Alaska 5.4°C
4 Cape Romanzof, Bering Sea, Alaska Alaska 5.4°C
5 St. Michael, Norton Sound Alaska 5.4°C
6 St. Matthew Island, Bering Sea, Alaska Alaska 5.4°C
7 North Bay, Stuart Island, Norton Sound, Alaska Alaska 5.4°C
8 Helmick Point (SE of), Kuskokwim River Alaska 5.3°C
9 Popokamute, Alaska Alaska 5.3°C
10 Nome, Norton Sound Alaska 5.2°C
11 Unalakleet Alaska 5.1°C
12 Pikmiktalik River entrance, Norton Sound, Alaska Alaska 5.1°C
13 Kokechik Bay, Bering Sea, Alaska Alaska 5.0°C
14 Black, Black River, Bering Sea, Alaska Alaska 5.0°C
15 Point Spencer, Port Clarence, Norton Sound Alaska 4.7°C
16 Lost River, Seward Peninsula Alaska 4.7°C
17 Outside Lopp Lagoon Alaska 4.6°C
18 Tin City, Bering Sea Alaska 4.6°C
19 Shaktoolik Alaska 4.5°C
20 Moghoweyik River entrance, St. Lawrence Island, Alaska Alaska 4.4°C
21 Northeast Cape, St. Lawrence Island Alaska 4.4°C
22 Nunam Iqua (Sheldon Point) Alaska 4.4°C
23 Apoon Mouth, Yukon River, Norton Sound, Alaska Alaska 4.3°C
24 Teller, Port Clarance, Norton Sound, Alaska Alaska 4.3°C
25 Teller, Port Clarence Alaska 4.3°C
Show 25 more ▸
26 Cape Espenberg, Kotzebue Sound Alaska 4.2°C
27 Kotzebue Alaska 4.2°C
28 Point Hope Alaska 4.2°C
29 Shishmaref Inlet 2 Alaska 4.2°C
30 Akeftapak, St. Lawrence Island Alaska 4.2°C
31 Deering, Kotzebue Sound Alaska 4.2°C
32 Fossil River entrance, St. Lawrence Island, Alaska Alaska 4.1°C
33 Maknik Lagoon entrance, St. Lawrence Island, Alaska Alaska 4.1°C
34 Powooiliak Point, St. Lawrence Island, Alaska Alaska 4.1°C
35 Cape Krusenstern, Kotzebue Sound Alaska 4.1°C
36 Kivalina Alaska 4.1°C
37 Red Dog Dock Alaska 4.0°C
38 Savoonga, St. Lawrence Island Alaska 3.9°C
39 Kiwalik, Kotzebue Sound, Alaska Alaska 3.9°C
40 Goodhope Bay, Kotzebue Sound Alaska 3.9°C
41 Kotzebue, Kotzebue Sound Alaska 3.8°C
42 Barrow (offshore) Alaska 2.3°C
43 Point Barrow, Alaska Alaska 2.3°C
44 Point Barrow Alaska 2.3°C
45 Barrow Alaska 1.9°C
46 Prudhoe Bay #2 Alaska 0.7°C
47 Cross Island (Dinkum Sands) Alaska 0.6°C
48 Flaxman Island Alaska 0.6°C
49 Prudhoe Bay Alaska 0.5°C
50 Barter Island Alaska 0.3°C

Warmest 10 in Alaska in October

Same data flipped. The warmest spots in the state for this month.

# Location October mean
1 Forrester Island, Dall Island, Alaska Alaska 11.4°C
2 Eagle Point, Meares Passage, Alaska Alaska 11.2°C
3 Natalia Point, Tlevak Strait, Alaska Alaska 11.2°C
4 Sakie Bay, Dall Island, Alaska Alaska 11.2°C
5 Sea Otter Harbor, Dall Island, Alaska Alaska 11.2°C
6 View Cove, Tlevak Strait, Alaska Alaska 11.2°C
7 Windy Cove entrance Alaska 11.2°C
8 American Bay, Kaigani Strait, Alaska Alaska 11.1°C
9 Diver Islands, Meares Passage, Alaska Alaska 11.1°C
10 Gooseneck Harbor, Dall Island, Alaska Alaska 11.1°C

Other US states

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