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Warmest beach in Maine in May

158 coastal locations in Maine ranked by their typical May sea temperature. State-wide average in May: 8.7°C.

Warmest in May

Kittery

10.1°C

State May average

8.7°C

across 158 coastal locations in Maine

Vs annual mean

-1.3°C

below the year-round state average

What the Maine water feels like in May

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.

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 May fits in the year

May 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 May 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 May

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

# Location May mean
1 Kittery Maine 10.1°C
2 Ogunquit Maine 10.1°C
3 York Beach Maine 10.1°C
4 York Harbor Maine 10.1°C
5 Atlantic Heights, Piscataqua River, New Hampshire Maine 10.0°C
6 Cape Neddick, Maine Maine 10.0°C
7 Fort Point, York Harbor, Maine Maine 10.0°C
8 Gerrish Island, Portsmouth Harbor, New Hampshire Maine 10.0°C
9 Kennebunk Beach Maine 10.0°C
10 Kittery Point, Portsmouth Harbor, New Hampshire Maine 10.0°C
11 Seapoint, Cutts Island, Maine Maine 10.0°C
12 Seavey Island, Portsmouth Harbor Maine 10.0°C
13 Wells, Webhannet River Maine 10.0°C
14 York Harbor, Maine Maine 10.0°C
15 Wells Maine 9.9°C
16 Back Cove, Casco Bay, Maine Maine 9.9°C
17 Biddeford, Saco River Maine 9.9°C
18 Camp Ellis, Saco River Entrance Maine 9.9°C
19 Cape Porpoise, Maine Maine 9.9°C
20 Fore River, Casco Bay, Maine Maine 9.9°C
21 Pine Point Maine 9.9°C
22 Saco Bay Maine 9.9°C
23 Scarborough Beach Maine 9.9°C
24 Biddeford Pool Maine 9.8°C
25 Biddeford Maine 9.8°C
Show 25 more ▸
26 Goose Rocks Beach Maine 9.8°C
27 Kennebunkport Maine 9.8°C
28 Cliff Island, Luckse Sound, Casco Bay, Maine Maine 9.7°C
29 Cow Island, Casco Bay, Maine Maine 9.7°C
30 Cushing Island, Casco Bay, Maine Maine 9.7°C
31 Doyle Point, Casco Bay, Maine Maine 9.7°C
32 Falmouth Foreside, Casco Bay, Maine Maine 9.7°C
33 Great Chebeague Island, Casco Bay, Maine Maine 9.7°C
34 Great Diamond Island, Casco Bay, Maine Maine 9.7°C
35 Long Island, Casco Bay, Maine Maine 9.7°C
36 Peak Island, Casco Bay, Maine Maine 9.7°C
37 Portland, Casco Bay Maine 9.7°C
38 Portland Head Light, Casco Bay, Maine Maine 9.7°C
39 Presumpscot River Bridge, Casco Bay, Maine Maine 9.7°C
40 Prince Point, Casco Bay, Maine Maine 9.7°C
41 South Freeport, Casco Bay, Maine Maine 9.7°C
42 South Harpswell, Potts Harbor, Casco Bay, Maine Maine 9.7°C
43 Vaill Island, Casco Bay, Maine Maine 9.7°C
44 Higgins Beach Maine 9.7°C
45 Old Orchard Beach Maine 9.7°C
46 Portland Maine 9.7°C
47 Scarborough Maine 9.7°C
48 Brunswick, Androscoggin River, Kennebec River, Maine Maine 9.6°C
49 Cape Elizabeth Maine 9.6°C
50 Cundy Harbor, New Meadows River, Casco Bay, Maine Maine 9.6°C

Coldest 10 in Maine in May

Same data the other way.

# Location May mean
1 Acadia Maine 5.6°C
2 Gulf of Maine Maine 6.7°C
3 Birch Islands, Cobscook Bay, Maine Maine 6.7°C
4 Coffin Point, Coffin Neck Maine 6.7°C
5 Cutler, Little River, Maine Maine 6.7°C
6 Garnet Point, Hersey Neck, Pennamquan River, Cobscook Bay Maine 6.7°C
7 Gravelly Point, Whiting Bay Maine 6.7°C
8 Cutler Naval Base, Machias Bay Maine 6.8°C
9 Shoppee Point, Englishman Bay, Maine Maine 6.8°C
10 Stone Island, Machias Bay, Maine Maine 6.8°C

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