United States · Atlantic
New York
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Climate · monthly averages
Sea temperature by month
30-year averages (1996–2025). Min/Max are typical daily lows and highs, not record extremes.
32°F
39°F
46°F
54°F
61°F
68°F
75°F
82°F
January
43.0°F(39°F–46°F)
February
40.0°F(36°F–43°F)
March
41.1°F(38°F–44°F)
April
46.0°F(42°F–49°F)
May
54.5°F(51°F–57°F)
June
64.7°F(62°F–67°F)
July
72.4°F(69°F–75°F)
August
73.8°F(72°F–76°F)
September
70.6°F(69°F–73°F)
October
63.5°F(61°F–66°F)
November
55.5°F(53°F–58°F)
December
48.6°F(45°F–52°F)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MinMin °F | 3938.7 | 3635.7 | 3837.6 | 4242.4 | 5151.2 | 6262.0 | 6969.1 | 7271.6 | 6968.8 | 6161.3 | 5353.1 | 4545.4 |
| AvgAvg °F | 4343.0 | 4040.0 | 4141.1 | 4646.0 | 5454.5 | 6564.7 | 7272.4 | 7473.8 | 7170.6 | 6463.5 | 5555.5 | 4948.6 |
| MaxMax °F | 4646.3 | 4343.4 | 4444.3 | 4949.1 | 5757.2 | 6767.4 | 7575.2 | 7676.0 | 7372.6 | 6666.2 | 5858.4 | 5251.8 |
Warmest in August (73.8°F). Coldest in February (40.0°F). Comfortable for swimming from June to September.
About New York
Upper New York Bay opens with the Statue of Liberty, a 93-metre copper figure designed by Frédéric-Auguste Bartholdi and gifted by France in 1886 to mark a century of American independence. Across the East River, Coney Island's boardwalk fronts a wide Brooklyn strand still anchored by the wooden Cyclone, while Rockaway Beach unspools five and a half miles of Atlantic surf reachable on the A train. The water peaks at a brisk 21-23 °C from July through September, with JFK airport 45 minutes away via the Van Wyck.