Where is the sea coldest in United States in January?

Coney Island in United States has the coldest sea in United States in January, averaging about 4.0 °C. Rockaway Beach (4.0 °C) and Jones Beach are the next coolest.

How many beaches in United States are warm enough to swim in January?

None of the top 25 ranked beaches in United States reach 22 °C in January, so a wetsuit is recommended for anything longer than a quick dip.

How are these January sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical January rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in United States in January

Where the sea is coolest across United States during January, ranked by long-term monthly average water temperature. Coney Island (New York, United States) is the coolest at around 4°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Coney Island
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
2
Rockaway Beach
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
3
Jones Beach
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
4
Long Beach NY
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
5
Robert Moses
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
6
Fire Island
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
7
Cooper's Beach
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
8
Main Beach East Hampton
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
9
Ditch Plains
New York · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
10
Revere Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
11
Singing Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
12
Good Harbor Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
13
Nantasket Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
14
Horseneck Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
15
Old Silver Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
16
Craigville Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
17
Mayflower Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
18
Nauset Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
19
Coast Guard Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
20
Marconi Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
21
Race Point
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
22
South Beach Edgartown
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
23
Surfside Beach Nantucket
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
24
Crane Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average
25
Head of the Meadow Beach
Massachusetts · United States · Atlantic Ocean
Cold — wetsuit strongly recommended
4°C
January average

Coldest sea in January elsewhere

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United States in January — frequently asked questions

Where is the sea coldest in United States in January?: Coney Island in United States has the coldest sea in United States in January, averaging about 4.0 °C. Rockaway Beach (4.0 °C) and Jones Beach are the next coolest.
How many beaches in United States are warm enough to swim in January?: None of the top 25 ranked beaches in United States reach 22 °C in January, so a wetsuit is recommended for anything longer than a quick dip.
How are these January sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical January rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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