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Is it too cold to swim in New York City?
The latest NASA JPL satellite analysis, dated November 3, 2026, gives 60°F (15.7°C) at the nearest water pixel. That is cold water.
Between 60°F and 70°F, which the National Center for Cold Water Safety rates as dangerous. It recommends a wetsuit or drysuit below 70°F. Temperature is only one factor: check rip current and surf alerts, and swim near lifeguards.
How cold is too cold to swim?Water temperature through the year
Average water temperature by month, satellite 2016–2025. Warmest in August.
Average ocean temperature by month
| Month | Average | Coldest year | Warmest year |
|---|---|---|---|
| January | 43°F | 40°F | 46°F |
| February | 40°F | 37°F | 42°F |
| March | 42°F | 40°F | 45°F |
| April | 47°F | 44°F | 50°F |
| May | 56°F | 54°F | 60°F |
| June | 66°F | 65°F | 67°F |
| July | 74°F | 72°F | 76°F |
| August | 74°F | 73°F | 76°F |
| September | 71°F | 70°F | 73°F |
| October | 64°F | 62°F | 66°F |
| November | 56°F | 53°F | 57°F |
| December | 48°F | 45°F | 50°F |
Other water temperature readings nearby
| Source | Water | Distance | Updated |
|---|---|---|---|
| The Battery tide station | 61°F | 9.3 mi | 2 h ago |
| Sandy Hook tide station | 60°F | 9.3 mi | 2 h ago |
| Newark Bay at PVSC at Newark NJ bay gauge | 61°F | 14 mi | 71 min ago |
| Hog Island Channel at Island Park NY bay gauge | 60°F | 14 mi | 2 h ago |
| Raritan Bay at Keansburg NJ bay gauge | 62°F | 15 mi | 71 min ago |
| Kings Point tide station | 60°F | 18 mi | 61 min ago |
| Reynolds Channel at Point Lookout NY bay gauge | 61°F | 18 mi | 73 min ago |
| Arthur Kill at Perth Amboy NJ bay gauge | 59°F | 19 mi | 65 min ago |
| New York Harbor Entrance - 15 NM SE of Breezy Point , NY buoy | 61°F | 19 mi | 81 min ago |
| East Creek at Sands Point NY bay gauge | 63°F | 22 mi | 79 min ago |
Water temperatures at nearby beaches
Frequently asked questions
Is it too cold to swim in New York City?
The latest NASA JPL satellite analysis, dated November 3, 2026, gives 60°F (15.7°C) at the nearest water pixel. That is cold water. Between 60°F and 70°F, which the National Center for Cold Water Safety rates as dangerous. It recommends a wetsuit or drysuit below 70°F. Temperature is only one factor: check rip current and surf alerts, and swim near lifeguards. How cold is too cold?
When is the water warmest at New York City?
Based on satellite data from 2016 to 2025, the water is warmest in August (average 74°F) and coldest in February (average 40°F).
Where does this water temperature come from?
We show NASA JPL’s daily MUR satellite analysis for the nearest water, about 0.4 mi away, when no suitable current in-water sensor is available. Satellite values are typically a degree or two cooler than afternoon readings at the shore. Satellite vs. buoy temperatures.
Sources: NASA JPL MUR satellite analysis; NOAA National Data Buoy Center; U.S. Geological Survey; NOAA Tides & Currents; forecast and alerts from the National Weather Service. Readings are provisional. All New York water temperatures · Methodology