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Warmest beach in Maine in March

158 coastal locations in Maine ranked by their typical March sea temperature. State-wide average in March: 4.0°C.

Warmest in March

Casco Bay

4.8°C

State March average

4.0°C

across 158 coastal locations in Maine

Vs annual mean

-5.9°C

below the year-round state average

What the Maine water feels like in March

Water at this temperature is freezing cold, can cause pain and takes your breath away. Unless you are very experienced and are under strict supervision, swimming in this water for more than a few minutes can be very dangerous. Be careful, stay safe, and enjoy the rush of endorphins and exhilaration from a brief cold water swim.

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 March fits in the year

March 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 March 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 March

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

# Location March mean
1 Casco Bay Maine 4.8°C
2 Biddeford Pool Maine 4.5°C
3 Biddeford Maine 4.5°C
4 Goose Rocks Beach Maine 4.5°C
5 Kennebunkport Maine 4.5°C
6 Atlantic Heights, Piscataqua River, New Hampshire Maine 4.5°C
7 Cape Neddick, Maine Maine 4.5°C
8 Fort Point, York Harbor, Maine Maine 4.5°C
9 Gerrish Island, Portsmouth Harbor, New Hampshire Maine 4.5°C
10 Kennebunk Beach Maine 4.5°C
11 Kittery Point, Portsmouth Harbor, New Hampshire Maine 4.5°C
12 Seapoint, Cutts Island, Maine Maine 4.5°C
13 Seavey Island, Portsmouth Harbor Maine 4.5°C
14 Wells, Webhannet River Maine 4.5°C
15 York Harbor, Maine Maine 4.5°C
16 Bremen Maine 4.5°C
17 Bristol Maine 4.5°C
18 Friendship Maine 4.5°C
19 Pemaquid Maine 4.5°C
20 Kittery Maine 4.5°C
21 Ogunquit Maine 4.5°C
22 York Beach Maine 4.5°C
23 York Harbor Maine 4.5°C
24 Back Cove, Casco Bay, Maine Maine 4.5°C
25 Biddeford, Saco River Maine 4.5°C
Show 25 more ▸
26 Camp Ellis, Saco River Entrance Maine 4.5°C
27 Cape Porpoise, Maine Maine 4.5°C
28 Fore River, Casco Bay, Maine Maine 4.5°C
29 Pine Point Maine 4.5°C
30 Saco Bay Maine 4.5°C
31 Scarborough Beach Maine 4.5°C
32 Brunswick, Androscoggin River, Kennebec River, Maine Maine 4.5°C
33 Cape Elizabeth Maine 4.5°C
34 Cundy Harbor, New Meadows River, Casco Bay, Maine Maine 4.5°C
35 Fort Popham, Hunniwell Point, Kennebec River Maine 4.5°C
36 Howard Point, New Meadows River, Casco Bay, Maine Maine 4.5°C
37 Peaks Island Maine 4.5°C
38 South Portland Maine 4.5°C
39 Wilson Cove, Middle Bay, Casco Bay, Maine Maine 4.5°C
40 Boothbay Harbor Maine 4.4°C
41 Reid State Park Maine 4.4°C
42 Cutler Maine 4.3°C
43 Wells Maine 4.3°C
44 Harpswell Center Maine 4.3°C
45 Higgins Beach Maine 4.3°C
46 North Bath Maine 4.3°C
47 Old Orchard Beach Maine 4.3°C
48 Phippsburg Maine 4.3°C
49 Popham Beach Maine 4.3°C
50 Portland Maine 4.3°C

Coldest 10 in Maine in March

Same data the other way.

# Location March mean
1 Acadia Maine 0.7°C
2 Belfast Maine 2.3°C
3 Bucksport Maine 2.3°C
4 Lincolnville Maine 2.3°C
5 Orland Maine 2.3°C
6 Vinalhaven Maine 2.3°C
7 Winterport Maine 2.3°C
8 Bucksport, Penobscot River, Maine Maine 2.6°C
9 Fort Point, Penobscot River Maine 2.6°C
10 Gross Point, Eastern Channel, Penobscot River, Maine Maine 2.6°C

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