Skip to content
seatemperatures.net

Coldest beach in Connecticut in August

61 coastal locations in Connecticut ranked by their typical August sea temperature. State-wide average in August: 23.3°C.

Coldest in August

West Mystic, Mystic River, Long Island Sound

21.6°C

State August average

23.3°C

across 61 coastal locations in Connecticut

Vs annual mean

+10.1°C

above the year-round state average

What the Connecticut 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.

Connecticut monthly average 3.1°C to 23.3°C
J
F
M
A
M
J
J
A
S
O
N
D
  • Warmest month August 23.3°C
  • Coldest month February 3.1°C
  • Annual mean 13.2°C
  • Months above 20°C 3 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.

Connecticut sea temperature map (live)

Today's reading at every Connecticut 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 Connecticut beaches in August

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

# Location August mean
1 Cos Cob Harbor, Connecticut Connecticut 24.2°C
2 East Norwalk Connecticut 24.2°C
3 Long Neck Point, Long Island Sound Connecticut 24.2°C
4 Mianus Connecticut 24.2°C
5 Rowayton, Fivemile River, Connecticut Connecticut 24.2°C
6 Saugatuck, Saugatuck River, Long Island Sound Connecticut 24.2°C
7 South Norwalk, Connecticut Connecticut 24.2°C
8 South Norwalk, Norwalk River Connecticut 24.2°C
9 Black Rock Harbor, Cedar Creek Connecticut 24.2°C
10 Gulf Beach, Connecticut Connecticut 24.2°C
11 Long Hill, Housatonic River, Connecticut Connecticut 24.2°C
12 Milford Harbor, Connecticut Connecticut 24.2°C
13 Shelton, Housatonic River, Connecticut Connecticut 24.2°C
14 Sniffens Point, Housatonic River, Connecticut Connecticut 24.2°C
15 Stratford, I-95 bridge, Housatonic River, Connecticut Connecticut 24.2°C
16 Branford Connecticut 24.0°C
17 Bridgeport Connecticut 24.0°C
18 Milford Connecticut 24.0°C
19 New Haven Connecticut 24.0°C
20 West Haven Connecticut 24.0°C
21 Great Captain Island Connecticut 23.5°C
22 Clinton Connecticut 23.3°C
23 Guilford Connecticut 23.3°C
24 Hammonasset Beach Connecticut 23.3°C
25 Madison Connecticut 23.3°C
Show 25 more ▸
26 Woodmont Connecticut 23.3°C
27 Haddam, Connecticut River, Connecticut Connecticut 23.2°C
28 Old Lyme Connecticut 22.5°C
29 Old Saybrook Connecticut 22.5°C
30 Saybrook Manor Connecticut 22.5°C
31 Westbrook Connecticut 22.5°C
32 East Haddam Connecticut 22.4°C
33 Essex, Connecticut River, Connecticut Connecticut 22.4°C
34 Hadlyme, Connecticut River, Connecticut Connecticut 22.4°C
35 Lyme, highway bridge, Connecticut River, Connecticut Connecticut 22.4°C
36 Saybrook Jetty, Connecticut River, Connecticut Connecticut 22.4°C
37 Saybrook Point, Connecticut River, Connecticut Connecticut 22.4°C
38 Tylerville, Connecticut River, Connecticut Connecticut 22.4°C
39 Groton Connecticut 22.0°C
40 New London Connecticut 22.0°C
41 Niantic Connecticut 22.0°C
42 Ocean Beach Park Connecticut 22.0°C
43 Waterford Connecticut 22.0°C
44 New London, Thames River Connecticut 21.9°C
45 Norwich, Thames River, Connecticut Connecticut 21.9°C
46 Yale boathouse, Thames River, Connecticut Connecticut 21.9°C
47 Mystic Connecticut 21.8°C
48 Noank Connecticut 21.8°C
49 Stonington Connecticut 21.8°C
50 West Mystic, Mystic River, Long Island Sound Connecticut 21.6°C

Warmest 10 in Connecticut in August

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

# Location August mean
1 Byram Connecticut 24.4°C
2 Cos Cob Connecticut 24.4°C
3 Greenwich Connecticut 24.4°C
4 Old Greenwich Connecticut 24.4°C
5 Stamford Connecticut 24.4°C
6 Darien Connecticut 24.3°C
7 Fairfield Connecticut 24.3°C
8 Norwalk Connecticut 24.3°C
9 Westport Connecticut 24.3°C
10 Cos Cob Harbor, Connecticut Connecticut 24.2°C

Other US states

Related rankings