Sea Temperature

Port Jefferson Sea Temperature

(Today) Jun 2020

14°C / 57.2°F

Current weather

23°C / 73°F
(broken clouds)

Partly cloudy
Wind

10 mph

Humidity

73%


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 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.

Maximum and minimum monthly sea temperatures in Port Jefferson
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3 2.6 3 3.8 7.8 14.3 19.9 21.4 19.2 14.7 11.3 7.1
Max °C 8.4 5.9 6.3 11.1 16 21.9 24.6 25.3 22.6 20.5 14.8 11.8
Min °F 39.6 38 38.7 41.7 49.3 60.8 69.7 72 67.9 60.8 53.7 46.6
Max °F 45 41.3 42 49 57.5 68.4 74.4 75.9 71.3 66.6 57.2 51.3

7 day tide forecast for Port Jefferson

ThuFriSatSunMonTueWed
  • Low 4:46am
    (-0.68m)
  • High 10:51am
    (7.17m)
  • Low 4:56pm
    (-0.18m)
  • High 11:08pm
    (8.33m)
  • Low 5:38am
    (-0.79m)
  • High 11:42am
    (7.22m)
  • Low 5:47pm
    (-0.13m)
  • High 11:58pm
    (8.28m)
  • Low 6:28am
    (-0.76m)
  • High 12:33pm
    (7.19m)
  • Low 6:37pm
    (0.01m)
  • High 12:48am
    (8.09m)
  • Low 7:17am
    (-0.60m)
  • High 1:23pm
    (7.09m)
  • Low 7:27pm
    (0.21m)
  • High 1:37am
    (7.80m)
  • Low 8:05am
    (-0.35m)
  • High 2:14pm
    (6.94m)
  • Low 8:18pm
    (0.46m)
  • High 2:27am
    (7.45m)
  • Low 8:54am
    (-0.05m)
  • High 3:04pm
    (6.77m)
  • Low 9:10pm
    (0.70m)
  • High 3:18am
    (7.08m)
  • Low 9:43am
    (0.26m)
  • High 3:55pm
    (6.61m)
  • Low 10:03pm
    (0.93m)
7 day tide times for Port Jefferson

*These tide times are estimates based on the nearest port (Port Jefferson, Long Island Sound) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average June sea temperatures

  • Max: 21.9°C / 71.4°F
  • Avg: 18.1°C / 64.6°F
  • Min: 14.3°C / 57.7°F
Port Jefferson average sea temperature chart

These average ocean temperatures for Port Jefferson are calculated from several years of archived data.

Map showing location of Port Jefferson (40.946490, -73.069270)

Locations nearby

Variations

Whilst sea temperatures for Port Jefferson are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Port Jefferson

Port Jefferson average sea temperature chart