Sag Harbor Water Temperature

(Today) 2025

17.2°C / 62.9°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

15°C / 58°F
(overcast clouds)
Partly cloudy
Wind
1 mph
Humidity
87%

The measurements for the water temperature in Sag Harbor, New York are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Sag Harbor water temperature derived from many years of historical sea surface temperature data.

Sag Harbor average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Sag Harbor
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2 1.8 2.4 3.7 7.7 14.2 19.3 21.1 19 14.5 11.4 7
Max °C 7.8 4.9 5.8 10.2 15.4 21 24.7 25.2 22.2 20.4 14.9 11.8
Min °F 37.9 36.4 37.7 41.2 48.9 60.3 68.9 71.6 67.5 60.4 53.9 46.5
Max °F 43.7 39.5 41.1 47.7 56.6 67.1 74.3 75.7 70.7 66.3 57.4 51.3

The warmest water temperature is in August with an average around 73.6°F / 23.1°C. The coldest month is February with an average water temperature of 37.9°F / 3.3°C.

7 day tide forecast for Sag Harbor

SunMonTueWedThuFriSat
  • High 1:39am
    (0.9m)
  • Low 8:14am
    (0.05m)
  • High 2:24pm
    (0.73m)
  • Low 8:20pm
    (0.2m)
  • High 2:23am
    (0.87m)
  • Low 9:02am
    (0.05m)
  • High 3:09pm
    (0.76m)
  • Low 9:18pm
    (0.19m)
  • High 3:11am
    (0.84m)
  • Low 9:49am
    (0.06m)
  • High 3:58pm
    (0.8m)
  • Low 10:18pm
    (0.17m)
  • High 4:04am
    (0.8m)
  • Low 10:38am
    (0.07m)
  • High 4:51pm
    (0.85m)
  • Low 11:19pm
    (0.13m)
  • High 5:03am
    (0.76m)
  • Low 11:27am
    (0.07m)
  • High 5:47pm
    (0.92m)
  • Low 12:19am
    (0.09m)
  • High 6:05am
    (0.73m)
  • Low 12:18pm
    (0.08m)
  • High 6:43pm
    (0.98m)
  • Low 1:19am
    (0.04m)
  • High 7:06am
    (0.72m)
  • Low 1:11pm
    (0.07m)
  • High 7:37pm
    (1.04m)
7 day tide times for Sag Harbor

*These tide times are estimates based on the nearest accurate location (Sag Harbor, Long Island Sound, New York) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.