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Coldest beach in Massachusetts in August

222 coastal locations in Massachusetts ranked by their typical August sea temperature. State-wide average in August: 20.8°C.

Coldest in August

Texas Tower, Georges Shoal

18.1°C

State August average

20.8°C

across 222 coastal locations in Massachusetts

Vs annual mean

+8.8°C

above the year-round state average

What the Massachusetts water feels like in August

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.

Massachusetts monthly average 3.8°C to 20.8°C
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  • Warmest month August 20.8°C
  • Coldest month February 3.8°C
  • Annual mean 12.0°C
  • Months above 20°C 2 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.

Massachusetts sea temperature map (live)

Today's reading at every Massachusetts 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 coldest Massachusetts beaches in August

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

# Location August mean
1 Beverly Cove Massachusetts 19.5°C
2 Boston Massachusetts 19.5°C
3 Carson Beach Massachusetts 19.5°C
4 Chelsea Massachusetts 19.5°C
5 Cohasset Massachusetts 19.5°C
6 Crane Beach Massachusetts 19.5°C
7 Essex Massachusetts 19.5°C
8 Hingham Massachusetts 19.5°C
9 Ipswich Massachusetts 19.5°C
10 Manchester by the Sea Massachusetts 19.5°C
11 Plum Island Massachusetts 19.5°C
12 Quincy Massachusetts 19.5°C
13 Salem Massachusetts 19.5°C
14 Singing Beach Massachusetts 19.5°C
15 South Boston Massachusetts 19.5°C
16 Weymouth Massachusetts 19.5°C
17 Annisquam, Lobster Cove, Massachusetts Massachusetts 19.4°C
18 Amelia Earhart Dam, Mystic River, Boston Harbor Massachusetts 19.3°C
19 Beverly Massachusetts 19.3°C
20 Boston Light, Boston Harbor Massachusetts 19.3°C
21 Charlestown, Charles River entrance, Boston Harbor, Massachusetts Massachusetts 19.3°C
22 Chelsea St. Bridge, Chelsea River, Boston Harbor Massachusetts 19.3°C
23 Crow Point, Hingham Harbor entrance, Massachusetts Massachusetts 19.3°C
24 Deer Island (south end), Boston Harbor, Massachusetts Massachusetts 19.3°C
25 Hull, Massachusetts Massachusetts 19.3°C
Show 25 more ▸
26 Lovell Island Massachusetts 19.3°C
27 Lynn, Lynn Harbor Massachusetts 19.3°C
28 Moon Head, Boston Harbor, Massachusetts Massachusetts 19.3°C
29 Nantasket Beach, Weir River, Massachusetts Massachusetts 19.3°C
30 Neponset, Neponset River, Boston Harbor, Massachusetts Massachusetts 19.3°C
31 Nut Island, Quincy Bay Massachusetts 19.3°C
32 Plum Island Sound (south end) Massachusetts 19.3°C
33 Rainsford Island Massachusetts 19.3°C
34 Salem, Salem Harbor Massachusetts 19.3°C
35 Sheep Island Massachusetts 19.3°C
36 Shipyard Point, Weymouth Fore River Massachusetts 19.3°C
37 Weymouth Back River Massachusetts 19.3°C
38 Weymouth Fore River Bridge, Massachusetts Massachusetts 19.3°C
39 Gloucester Massachusetts 19.2°C
40 Good Harbor Beach Massachusetts 19.2°C
41 Newburyport Massachusetts 19.2°C
42 Rockport Massachusetts 19.2°C
43 Salisbury Massachusetts 19.2°C
44 Wingaersheek Beach Massachusetts 19.2°C
45 Merrimacport, Merrimack River Massachusetts 19.1°C
46 Plum Island, Merrimack River Entrance, Merrimack River Massachusetts 19.1°C
47 Riverside, Merrimack River Massachusetts 19.1°C
48 Salisbury Point, Merrimack River Massachusetts 19.1°C
49 Tom Nevers Beach Massachusetts 18.8°C
50 Texas Tower, Georges Shoal Massachusetts 18.1°C

Warmest 10 in Massachusetts in August

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

# Location August mean
1 Aquinnah Massachusetts 22.7°C
2 Clarks Point, New Bedford, Buzzards Bay Massachusetts 22.6°C
3 Marion Center Massachusetts 22.6°C
4 Marion, Sippican Harbor, Buzzards Bay, Massachusetts Massachusetts 22.6°C
5 Mattapoisett, Mattapoisett Harbor, Buzzards Bay, Massachusetts Massachusetts 22.6°C
6 New Bedford, Buzzards Bay, Massachusetts Massachusetts 22.6°C
7 Round Hill Point, Buzzards Bay Massachusetts 22.6°C
8 South Dartmouth Massachusetts 22.6°C
9 West Island Massachusetts 22.6°C
10 Bourne Massachusetts 22.4°C

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