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Coldest beach in Massachusetts in September

222 coastal locations in Massachusetts ranked by their typical September sea temperature. State-wide average in September: 19.3°C.

Coldest in September

Tom Nevers Beach

17.8°C

State September average

19.3°C

across 222 coastal locations in Massachusetts

Vs annual mean

+7.3°C

above the year-round state average

What the Massachusetts water feels like in September

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.

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 September fits in the year

September 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 September 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 September

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

# Location September mean
1 Beverly Cove Massachusetts 18.3°C
2 Boston Massachusetts 18.3°C
3 Carson Beach Massachusetts 18.3°C
4 Chelsea Massachusetts 18.3°C
5 Cohasset Massachusetts 18.3°C
6 Crane Beach Massachusetts 18.3°C
7 Essex Massachusetts 18.3°C
8 Hingham Massachusetts 18.3°C
9 Ipswich Massachusetts 18.3°C
10 Manchester by the Sea Massachusetts 18.3°C
11 Plum Island Massachusetts 18.3°C
12 Quincy Massachusetts 18.3°C
13 Salem Massachusetts 18.3°C
14 Singing Beach Massachusetts 18.3°C
15 South Boston Massachusetts 18.3°C
16 Weymouth Massachusetts 18.3°C
17 Texas Tower, Georges Shoal Massachusetts 18.3°C
18 Amelia Earhart Dam, Mystic River, Boston Harbor Massachusetts 18.2°C
19 Beverly Massachusetts 18.2°C
20 Boston Light, Boston Harbor Massachusetts 18.2°C
21 Charlestown, Charles River entrance, Boston Harbor, Massachusetts Massachusetts 18.2°C
22 Chelsea St. Bridge, Chelsea River, Boston Harbor Massachusetts 18.2°C
23 Crow Point, Hingham Harbor entrance, Massachusetts Massachusetts 18.2°C
24 Deer Island (south end), Boston Harbor, Massachusetts Massachusetts 18.2°C
25 Hull, Massachusetts Massachusetts 18.2°C
Show 25 more ▸
26 Lovell Island Massachusetts 18.2°C
27 Lynn, Lynn Harbor Massachusetts 18.2°C
28 Moon Head, Boston Harbor, Massachusetts Massachusetts 18.2°C
29 Nantasket Beach, Weir River, Massachusetts Massachusetts 18.2°C
30 Neponset, Neponset River, Boston Harbor, Massachusetts Massachusetts 18.2°C
31 Nut Island, Quincy Bay Massachusetts 18.2°C
32 Plum Island Sound (south end) Massachusetts 18.2°C
33 Rainsford Island Massachusetts 18.2°C
34 Salem, Salem Harbor Massachusetts 18.2°C
35 Sheep Island Massachusetts 18.2°C
36 Shipyard Point, Weymouth Fore River Massachusetts 18.2°C
37 Weymouth Back River Massachusetts 18.2°C
38 Weymouth Fore River Bridge, Massachusetts Massachusetts 18.2°C
39 Annisquam, Lobster Cove, Massachusetts Massachusetts 18.1°C
40 Gloucester Massachusetts 17.9°C
41 Good Harbor Beach Massachusetts 17.9°C
42 Newburyport Massachusetts 17.9°C
43 Rockport Massachusetts 17.9°C
44 Salisbury Massachusetts 17.9°C
45 Wingaersheek Beach Massachusetts 17.9°C
46 Merrimacport, Merrimack River Massachusetts 17.8°C
47 Plum Island, Merrimack River Entrance, Merrimack River Massachusetts 17.8°C
48 Riverside, Merrimack River Massachusetts 17.8°C
49 Salisbury Point, Merrimack River Massachusetts 17.8°C
50 Tom Nevers Beach Massachusetts 17.8°C

Warmest 10 in Massachusetts in September

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

# Location September mean
1 Clarks Point, New Bedford, Buzzards Bay Massachusetts 21.1°C
2 Marion Center Massachusetts 21.1°C
3 Marion, Sippican Harbor, Buzzards Bay, Massachusetts Massachusetts 21.1°C
4 Mattapoisett, Mattapoisett Harbor, Buzzards Bay, Massachusetts Massachusetts 21.1°C
5 New Bedford, Buzzards Bay, Massachusetts Massachusetts 21.1°C
6 Round Hill Point, Buzzards Bay Massachusetts 21.1°C
7 South Dartmouth Massachusetts 21.1°C
8 West Island Massachusetts 21.1°C
9 Aquinnah Massachusetts 20.9°C
10 Abiels Ledge Massachusetts 20.6°C

Other US states

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