New York: water temperature

At sea, 14.4 °C on average across 25 stations, from 10.8 °C (Ogdensburg, NY) to 16.2 °C (LONG ISLAND - 30 NM South of Islip, NY). In fresh water, 10.7 °C on average across 70 stations, from 5.1 °C (Buck Creek Near Inlet Ny) to 15.5 °C (Cannonsville Res Div Channel Nr Grahamsville Ny).

See on the map

Sea and ocean

Lakes and rivers

Where to swim, month by month

The normal sea temperature each month along the coast: pick a month to see where the water is warmest and whether you can swim.

• January 7.7 °C · up to 9.7 °C
• February 5.7 °C · up to 7.6 °C
• March 5.7 °C · up to 6.9 °C
• April 7.9 °C · up to 8.4 °C
• May 11.9 °C · up to 13.0 °C
• June 17.3 °C · up to 18.5 °C
• July 22.6 °C · up to 23.2 °C
• August 23.3 °C · up to 24.1 °C
• September 21.5 °C · up to 22.0 °C
• October 18.0 °C · up to 18.2 °C
• November 14.1 °C · up to 15.0 °C
• December 10.7 °C · up to 12.4 °C

Warmest water today

Where these numbers come from

Every value is a real reading from an instrument, at its position: a buoy, a wharf, a river or lake station. It keeps the time it was measured. A reading too far from those of nearby stations is marked with a “?”. Between stations, the map gives a satellite or model estimate, always labelled as such.

Sources: Golfe du Maine (NERACOOS), Grands Lacs (Seagull), NOAA CO-OPS, NOAA NDBC, USGS, eaux des États-Unis. Sources and credits

Nearby

• Pennsylvania 135 stations · sea 16.9 °C · fresh water 11.1 °C
• Vermont 4 stations · fresh water 7.9 °C
• Connecticut 17 stations · sea 15.0 °C · fresh water 11.1 °C
• Massachusetts 40 stations · sea 13.9 °C · fresh water 9.8 °C
• New Jersey 58 stations · sea 14.6 °C · fresh water 11.9 °C
• New Hampshire 12 stations · sea 12.2 °C · fresh water 7.4 °C