Port Jefferson Water Temperature

(Today) 2022

12.2°C / 53.9°F

Current weather

18°C / 64°F
(overcast clouds)

Partly cloudy

Wind

8 mph

Humidity

91%


The measurements for the water temperature in Port Jefferson, 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.

Monthly average water temp

Monthly average max / min water temperatures

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

Port Jefferson average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Port Jefferson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3.2 2.6 2.7 3.9 8.2 14.4 20.1 21.6 19.1 14.3 10.9 6.3
Max °C 8.3 6.2 7 11.6 16.3 22.2 24.5 25.2 23.2 20.9 14.6 11.6
Min °F 39.8 38.1 38.5 42.1 50 61 69.9 72.3 68 60.4 53.1 45.4
Max °F 44.9 41.7 42.8 49.8 58.1 68.8 74.3 75.9 72.1 67 56.8 50.7

The warmest water temperature is in August with an average around 74.1°F / 23.4°C. The coldest month is February with an average water temperature of 39.9°F / 4.4°C.


7 day tide forecast for Port Jefferson

SatSunMonTueWedThuFri
  • High 4:11am
    (2.22m)
  • Low 10:41am
    (0m)
  • High 4:51pm
    (2.02m)
  • Low 11:04pm
    (0.18m)
  • High 5:14am
    (2.12m)
  • Low 11:42am
    (0.07m)
  • High 5:54pm
    (2.02m)
  • Low 12:11am
    (0.2m)
  • High 6:19am
    (2.04m)
  • Low 12:44pm
    (0.12m)
  • High 6:57pm
    (2.05m)
  • Low 1:18am
    (0.19m)
  • High 7:23am
    (1.99m)
  • Low 1:43pm
    (0.14m)
  • High 7:56pm
    (2.11m)
  • Low 2:22am
    (0.14m)
  • High 8:24am
    (1.97m)
  • Low 2:38pm
    (0.15m)
  • High 8:52pm
    (2.17m)
  • Low 3:19am
    (0.09m)
  • High 9:21am
    (1.97m)
  • Low 3:28pm
    (0.15m)
  • High 9:41pm
    (2.22m)
  • Low 4:10am
    (0.03m)
  • High 10:11am
    (1.97m)
  • Low 4:14pm
    (0.16m)
  • High 10:26pm
    (2.25m)
7 day tide times for Port Jefferson

*These tide times are estimates based on the nearest accurate location (Port Jefferson, 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.