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Warmest beach in New York in September

241 coastal locations in New York ranked by their typical September sea temperature. State-wide average in September: 21.9°C.

Warmest in September

Long Island

29.7°C

State September average

21.9°C

across 241 coastal locations in New York

Vs annual mean

+8.3°C

above the year-round state average

What the New York water feels like in September

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.

New York monthly average 4.0°C to 23.4°C
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  • Warmest month August 23.4°C
  • Coldest month February 4.0°C
  • Annual mean 13.5°C
  • Months above 20°C 3 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.

New York sea temperature map (live)

Today's reading at every New York 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 warmest New York beaches in September

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

# Location September mean
1 Long Island New York 29.7°C
2 Centerport New York 22.9°C
3 Cold Spring Harbor New York 22.9°C
4 Eatons Neck New York 22.9°C
5 Halesite New York 22.9°C
6 Hudson river (Albany) New York 22.9°C
7 Huntington Bay New York 22.9°C
8 Northport New York 22.9°C
9 East Setauket New York 22.8°C
10 Long Island New York 22.8°C
11 Mount Sinai New York 22.8°C
12 Nissequogue New York 22.8°C
13 Port Jefferson New York 22.8°C
14 Smithtown New York 22.8°C
15 Stony Brook New York 22.8°C
16 Beacon, Flushkill, Hudson River New York 22.8°C
17 Cold Spring Harbor, Oyster Bay New York 22.8°C
18 Eatons Neck Point, Long Island New York 22.8°C
19 Huntington Harbor Lighthouse, Huntington Bay, Long Island New York 22.8°C
20 Hyde Park, Hudson River New York 22.8°C
21 New Hamburg, Hudson River, New York New York 22.8°C
22 Newburgh, Hudson River, New York New York 22.8°C
23 Peekskill, Hudson River, New York New York 22.8°C
24 Poughkeepsie, Hudson River, New York New York 22.8°C
25 Cedar Beach, Long Island New York 22.7°C
Show 25 more ▸
26 Mount Sinai Harbor, Long Island, New York New York 22.7°C
27 Port Jefferson Harbor entrance, Long Island, New York New York 22.7°C
28 Bellport New York 22.6°C
29 East Moriches New York 22.6°C
30 Mastic New York 22.6°C
31 Miller Place New York 22.6°C
32 Moriches New York 22.6°C
33 Shoreham New York 22.6°C
34 Moriches Inlet, Long Island New York 22.5°C
35 Moriches Inlet, New York New York 22.5°C
36 Patchogue, Patchogue River, Great South Bay New York 22.5°C
37 Bronx New York 22.1°C
38 City Island New York 22.1°C
39 East River New York 22.1°C
40 Larchmont New York 22.1°C
41 Midland Beach New York 22.1°C
42 New Rochelle New York 22.1°C
43 New York City New York 22.1°C
44 New York New York 22.1°C
45 Staten Island New York 22.1°C
46 Sunken Meadow New York 22.1°C
47 Yonkers New York 22.1°C
48 Bensonhurst New York 22.1°C
49 Breezy Point New York 22.1°C
50 Brighton Beach New York 22.1°C

Coldest 10 in New York in September

Same data the other way.

# Location September mean
1 Lake Champlain New York 18.3°C
2 Plattsburgh New York 18.3°C
3 Westport New York 18.3°C
4 Goat Island New York 20.1°C
5 Youngstown New York 20.1°C
6 Olcott New York 20.1°C
7 Lake George New York 20.2°C
8 Tonawanda New York 20.3°C
9 Rochester New York 20.6°C
10 Alexandria Bay New York 20.6°C

Other US states

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