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Warmest beach in Maine in August

158 coastal locations in Maine ranked by their typical August sea temperature. State-wide average in August: 16.7°C.

Warmest in August

Kittery

19.2°C

State August average

16.7°C

across 158 coastal locations in Maine

Vs annual mean

+6.7°C

above the year-round state average

What the Maine water feels like in August

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Maine monthly average 4.0°C to 16.7°C
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  • Warmest month August 16.7°C
  • Coldest month March 4.0°C
  • Annual mean 9.9°C
  • Months above 20°C 0 of 12

Where August fits in the year

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

Maine sea temperature map (live)

Today's reading at every Maine beach we track. The list below uses the typical August 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 warmest Maine beaches in August

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

# Location August mean
1 Kittery Maine 19.2°C
2 Ogunquit Maine 19.2°C
3 York Beach Maine 19.2°C
4 York Harbor Maine 19.2°C
5 Casco Bay Maine 19.2°C
6 Biddeford Pool Maine 19.1°C
7 Biddeford Maine 19.1°C
8 Goose Rocks Beach Maine 19.1°C
9 Kennebunkport Maine 19.1°C
10 Wells Maine 18.9°C
11 Cape Elizabeth Maine 18.9°C
12 Peaks Island Maine 18.9°C
13 South Portland Maine 18.9°C
14 Atlantic Heights, Piscataqua River, New Hampshire Maine 18.8°C
15 Cape Neddick, Maine Maine 18.8°C
16 Fort Point, York Harbor, Maine Maine 18.8°C
17 Gerrish Island, Portsmouth Harbor, New Hampshire Maine 18.8°C
18 Kennebunk Beach Maine 18.8°C
19 Kittery Point, Portsmouth Harbor, New Hampshire Maine 18.8°C
20 Seapoint, Cutts Island, Maine Maine 18.8°C
21 Seavey Island, Portsmouth Harbor Maine 18.8°C
22 Wells, Webhannet River Maine 18.8°C
23 York Harbor, Maine Maine 18.8°C
24 Back Cove, Casco Bay, Maine Maine 18.7°C
25 Biddeford, Saco River Maine 18.7°C
Show 25 more ▸
26 Camp Ellis, Saco River Entrance Maine 18.7°C
27 Cape Porpoise, Maine Maine 18.7°C
28 Fore River, Casco Bay, Maine Maine 18.7°C
29 Higgins Beach Maine 18.7°C
30 Old Orchard Beach Maine 18.7°C
31 Pine Point Maine 18.7°C
32 Portland Maine 18.7°C
33 Saco Bay Maine 18.7°C
34 Scarborough Beach Maine 18.7°C
35 Scarborough Maine 18.7°C
36 Brunswick, Androscoggin River, Kennebec River, Maine Maine 18.6°C
37 Cundy Harbor, New Meadows River, Casco Bay, Maine Maine 18.6°C
38 Fort Popham, Hunniwell Point, Kennebec River Maine 18.6°C
39 Howard Point, New Meadows River, Casco Bay, Maine Maine 18.6°C
40 Wilson Cove, Middle Bay, Casco Bay, Maine Maine 18.6°C
41 Cliff Island, Luckse Sound, Casco Bay, Maine Maine 18.5°C
42 Cow Island, Casco Bay, Maine Maine 18.5°C
43 Cushing Island, Casco Bay, Maine Maine 18.5°C
44 Doyle Point, Casco Bay, Maine Maine 18.5°C
45 Falmouth Foreside, Casco Bay, Maine Maine 18.5°C
46 Great Chebeague Island, Casco Bay, Maine Maine 18.5°C
47 Great Diamond Island, Casco Bay, Maine Maine 18.5°C
48 Long Island, Casco Bay, Maine Maine 18.5°C
49 Peak Island, Casco Bay, Maine Maine 18.5°C
50 Portland, Casco Bay Maine 18.5°C

Coldest 10 in Maine in August

Same data the other way.

# Location August mean
1 Acadia Maine 9.7°C
2 Cutler Naval Base, Machias Bay Maine 12.9°C
3 Shoppee Point, Englishman Bay, Maine Maine 12.9°C
4 Stone Island, Machias Bay, Maine Maine 12.9°C
5 Gulf of Maine Maine 12.9°C
6 Birch Islands, Cobscook Bay, Maine Maine 13.1°C
7 Coffin Point, Coffin Neck Maine 13.1°C
8 Cutler, Little River, Maine Maine 13.1°C
9 Garnet Point, Hersey Neck, Pennamquan River, Cobscook Bay Maine 13.1°C
10 Gravelly Point, Whiting Bay Maine 13.1°C

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