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Weather in Port Jefferson for 5 days

Current time in Port Jefferson:

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Local time.
Time zone: GMT -5
winter time
* weather indicated in local time
Thursday, February 27, 2025
The Sun:  Sunrise 06:29, Sunset 17:41.
The Moon:  Moonrise 06:27, Moonset 17:26, Moon phase: new new
 Geomagnetic Field: Active
  Water temperature in the sea: +2 °C
 UV index: 1,9 (Low)

by dayfrom 14:00 to 18:00Rain expected
Air temperature:
 +8...+9 °CThe temperature will riseprecipitation is expected
Weather patterns and meteorological conditions:
Rain expected
southern
Wind: fresh breeze, southern, speed 22-29 km/h
Wind gusts: 61 km/h
Relative humidity: 82-89%
Cloudiness: 100%
Atmospheric pressure: 1003-1005 hPa
Waves in the sea: moderate, wave height of 2 m
Amount of precipitations:  2,2 mm

in the eveningfrom 18:01 to 00:00Sometimes short-term rains
Air temperature:
 +6...+8 °CThe air temperature will go downprecipitation is expected
Weather patterns and meteorological conditions:
Sometimes short-term rains
southwest
Wind: moderate breeze, southwest, speed 18-25 km/h
Wind gusts: 40 km/h
Relative humidity: 90-94%
Cloudiness: 100%
Atmospheric pressure: 1000-1003 hPa
Waves in the sea: slight, wave height of 1 m
Amount of precipitations:  0,7 mm

Friday, February 28, 2025
The Sun:  Sunrise 06:28, Sunset 17:42.
The Moon:  Moonrise 06:53, Moonset 18:43, Moon phase: new new
 Geomagnetic Field: Active
  Water temperature in the sea: +2 °C
 UV index: 3,1 (Moderate)

at nightfrom 00:01 to 06:00Clear skies, no precipitation
Air temperature:
 +4...+6 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
western
Wind: moderate breeze, western, speed 18-22 km/h
Wind gusts: 40 km/h
Relative humidity: 69-79%
Cloudiness: 100%
Atmospheric pressure: 1000-1001 hPa
Waves in the sea: slight, wave height of 1 m

in the morningfrom 06:01 to 12:00Clear skies, no precipitation
Air temperature:
 +4...+6 °CThe temperature will not change
Weather patterns and meteorological conditions:
Clear skies, no precipitation
western
Wind: moderate breeze, western, speed 22-25 km/h
Wind gusts: 43 km/h
Relative humidity: 54-79%
Cloudiness: 18%
Atmospheric pressure: 1003-1005 hPa
Waves in the sea: slight, wave height of 1 m

by dayfrom 12:01 to 18:00Light cloud cover in the sky, no precipitation
Air temperature:
 +6 °CThe temperature will rise
Weather patterns and meteorological conditions:
Light cloud cover in the sky, no precipitation
western
Wind: moderate breeze, western, speed 14-22 km/h
Wind gusts: 36 km/h
Relative humidity: 47-54%
Cloudiness: 64%
Atmospheric pressure: 1005-1007 hPa
Waves in the sea: slight, wave height of 1 m

in the eveningfrom 18:01 to 00:00Cloudy sky, no precipitation
Air temperature:
 +5...+6 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Cloudy sky, no precipitation
southwest
Wind: moderate breeze, southwest, speed 4-22 km/h
Wind gusts: 43 km/h
Relative humidity: 58-74%
Cloudiness: 100%
Atmospheric pressure: 1005-1008 hPa
Waves in the sea: slight, wave height of 1 m

Saturday, March 1, 2025
The Sun:  Sunrise 06:26, Sunset 17:44.
The Moon:  Moonrise 07:16, Moonset 20:00, Moon phase: waxing crescent waxing crescent
 Geomagnetic Field: Unstable
  Water temperature in the sea: +2 °C
 UV index: 2,9 (Low)

at nightfrom 00:01 to 06:00The sky is overcast, no precipitation
Air temperature:
 +5...+6 °CThe air temperature will go down
Weather patterns and meteorological conditions:
The sky is overcast, no precipitation
southern
Wind: fresh breeze, southern, speed 25-36 km/h
Wind gusts: 65 km/h
Relative humidity: 72-80%
Cloudiness: 100%
Atmospheric pressure: 1000-1005 hPa
Waves in the sea: moderate, wave height of 2 m

in the morningfrom 06:01 to 12:00Cloudy sky, no precipitation
Air temperature:
 +5...+8 °CThe temperature will rise
Weather patterns and meteorological conditions:
Cloudy sky, no precipitation
southwest
Wind: moderate breeze, southwest, speed 18-22 km/h
Wind gusts: 40 km/h
Relative humidity: 56-79%
Cloudiness: 100%
Atmospheric pressure: 1000-1001 hPa
Waves in the sea: slight, wave height of 1 m

by dayfrom 12:01 to 18:00Cloudy sky, no precipitation
Air temperature:
 +8...+10 °CThe temperature will rise
Weather patterns and meteorological conditions:
Cloudy sky, no precipitation
western
Wind: fresh breeze, western, speed 22-36 km/h
Wind gusts: 50 km/h
Relative humidity: 42-55%
Cloudiness: 93%
Atmospheric pressure: 999-1001 hPa
Waves in the sea: moderate, wave height of 2 m

in the eveningfrom 18:01 to 00:00Clear skies, no precipitation
Air temperature:
 -1...+7 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northwest
Wind:  strong breezestrong breeze, northwest, speed 32-40 km/h
Wind gusts: 54 km/h
Relative humidity: 45-52%
Cloudiness: 69%
Atmospheric pressure: 1003-1009 hPa
Waves in the sea: rough, wave height of 3 m

Sunday, March 2, 2025
The Sun:  Sunrise 06:25, Sunset 17:45.
The Moon:  Moonrise 07:40, Moonset 21:18, Moon phase: waxing crescent waxing crescent
 Geomagnetic Field: Unstable
  Water temperature in the sea: +2 °C
 UV index: 2,7 (Low)

at nightfrom 00:01 to 06:00Clear skies, no precipitation
Air temperature:
 -5...-1 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northern
Wind: fresh breeze, northern, speed 29-32 km/h
Wind gusts: 50 km/h
Relative humidity: 53-55%
Cloudiness: 44%
Atmospheric pressure: 1011-1013 hPa
Waves in the sea: moderate, wave height of 2 m

in the morningfrom 06:01 to 12:00Clear skies, no precipitation
Air temperature:
 -7...-5 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northwest
Wind: fresh breeze, northwest, speed 29 km/h
Wind gusts: 47 km/h
Relative humidity: 38-54%
Cloudiness: 0%
Atmospheric pressure: 1015-1017 hPa
Waves in the sea: moderate, wave height of 2 m

by dayfrom 12:01 to 18:00Clear skies, no precipitation
Air temperature:
 -4...-2 °CThe temperature will rise
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northwest
Wind: fresh breeze, northwest, speed 25-29 km/h
Wind gusts: 47 km/h
Relative humidity: 34-37%
Cloudiness: 0%
Atmospheric pressure: 1017-1019 hPa
Waves in the sea: moderate, wave height of 2 m

in the eveningfrom 18:01 to 00:00Clear skies, no precipitation
Air temperature:
 -5...-3 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northwest
Wind: fresh breeze, northwest, speed 22-29 km/h
Wind gusts: 36 km/h
Relative humidity: 35-44%
Cloudiness: 0%
Atmospheric pressure: 1019-1023 hPa
Waves in the sea: moderate, wave height of 2 m

Monday, March 3, 2025
The Sun:  Sunrise 06:23, Sunset 17:46.
The Moon:  Moonrise 08:07, Moonset 22:37, Moon phase: waxing crescent waxing crescent
 Geomagnetic Field: Quiet
  Water temperature in the sea: +2 °C
 UV index: 3,1 (Moderate)

at nightfrom 00:01 to 06:00Clear skies, no precipitation
Air temperature:
 -7...-5 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northern
Wind: gentle breeze, northern, speed 18 km/h
Wind gusts: 29 km/h
Relative humidity: 46-59%
Cloudiness: 0%
Atmospheric pressure: 1023-1025 hPa
Waves in the sea: smooth (wavelets), wave height of 0,6 m

in the morningfrom 06:01 to 12:00Clear skies, no precipitation
Air temperature:
 -8...-6 °CThe air temperature will go down
Weather patterns and meteorological conditions:
Clear skies, no precipitation
northwest
Wind: gentle breeze, northwest, speed 14-18 km/h
Wind gusts: 25 km/h
Relative humidity: 51-62%
Cloudiness: 0%
Atmospheric pressure: 1025-1027 hPa
Waves in the sea: smooth (wavelets), wave height of 0,6 m

by dayfrom 12:01 to 18:00Clear skies, no precipitation
Air temperature:
 -5...-1 °CThe temperature will rise
Weather patterns and meteorological conditions:
Clear skies, no precipitation
western
Wind: gentle breeze, western, speed 11-14 km/h
Wind gusts: 25 km/h
Relative humidity: 40-47%
Cloudiness: 17%
Atmospheric pressure: 1025-1027 hPa
Waves in the sea: smooth (wavelets), wave height of 0,6 m

in the eveningfrom 18:01 to 00:00Clear skies, no precipitation
Air temperature:
 -1...0 °CThe temperature will rise
Weather patterns and meteorological conditions:
Clear skies, no precipitation
southwest
Wind: gentle breeze, southwest, speed 7-14 km/h
Wind gusts: 22 km/h
Relative humidity: 41-55%
Cloudiness: 45%
Atmospheric pressure: 1027 hPa
Waves in the sea: smooth (wavelets), wave height of 0,6 m

weather in nearby cities

Sometimes short-term rains Poquott  +8 °C 
Sometimes short-term rains Belle Terre  +8 °C 
Sometimes short-term rains Port Jefferson Station  +8 °C 
Sometimes short-term rains East Setauket  +8 °C 
Sometimes short-term rains Setauket-East Setauket  +8 °C 
Sometimes short-term rains Mount Sinai  +8 °C 
Sometimes short-term rains Terryville  +8 °C 
Sometimes short-term rains Old Field  +8 °C 
Sometimes short-term rains Miller Place  +7 °C 
Sometimes short-term rains Stony Brook  +8 °C 
Sometimes short-term rains Sound Beach  +7 °C 
Sometimes short-term rains Head of the Harbor  +8 °C 
Sometimes short-term rains Selden  +9 °C 
Sometimes short-term rains Centereach  +9 °C 
Sometimes short-term rains Coram  +8 °C 
Sometimes short-term rains Saint James  +9 °C 
Sometimes short-term rains Lake Grove  +9 °C 
Sometimes short-term rains Nissequogue  +8 °C 
Sometimes short-term rains Rocky Point  +7 °C 
Sometimes short-term rains Nesconset  +9 °C 
Sometimes short-term rains Gordon Heights  +8 °C 
Sometimes short-term rains Long Island  +8 °C 
Sometimes short-term rains Long Island  +8 °C 
Sometimes short-term rains Farmingville  +8 °C 
Sometimes short-term rains Lake Ronkonkoma  +9 °C 
Sometimes short-term rains Shoreham  +7 °C 
Sometimes short-term rains Village of the Branch  +9 °C 
Sometimes short-term rains Holtsville  +8 °C 
Sometimes short-term rains Holbrook  +8 °C 
Sometimes short-term rains Smithtown  +9 °C 
Sometimes short-term rains Ronkonkoma  +9 °C 
Sometimes short-term rains Medford  +8 °C 
Sometimes short-term rains Ridge  +8 °C 
Sometimes short-term rains East Shoreham  +7 °C 
Sometimes short-term rains Kings Park  +9 °C 
Sometimes short-term rains Hauppauge  +9 °C 
Sometimes short-term rains Yaphank  +8 °C 
Sometimes short-term rains Islandia  +8 °C 
Sometimes short-term rains North Patchogue  +8 °C 
Sometimes short-term rains Fort Salonga  +8 °C 
Sometimes short-term rains Bohemia  +8 °C 
Sometimes short-term rains Central Islip  +8 °C 
Sometimes short-term rains Patchogue  +8 °C 
Sometimes short-term rains Wading River  +7 °C 
Sometimes short-term rains East Patchogue  +8 °C 
Sometimes short-term rains North Bellport  +8 °C 
Sometimes short-term rains Commack  +9 °C 
Sometimes short-term rains Sayville Heights  +8 °C 

Temperature trend on the chart

DateTemperature,°C96-10756-4-554-1-7-8656-3-6657-6-7969-3-3763-4-1MaximumAverageMinimumat nightin the morningby dayin the evening27.228.201.302.303.3-10-50510

Additional data

Country:USA
Telephone country code:+1
Location:New York State
District:Suffolk County
The name of the city or village:Port Jefferson
Time zone:America/New_York, GMT -5. winter time
Coordinates:Latitude: 40.9465; Longitude: -73.0693;
Aliases (In other languages):English: Port JeffersonРусский: Порт ДжефферсонУкраїнська: Порт Джефферсон
 
Drowned Meadow, Drowned Meadows, Port DZeferson, So-was-sett, Sowassett, USPTJ, bwrt jfrswn, jie fei xun gang, 杰斐逊港
The project was created and is maintained by FDSTAR company, 2025

Weather in Port Jefferson for 5 days

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Protection from UV radiation from the Sun is not necessary. A UV index reading of 0 to 2 means low danger from the sun's UV rays for the average person. Wear sunglasses on bright days. If you burn easily, cover up and use broad spectrum SPF 30+ sunscreen. Bright surfaces, such as sand, water, and snow, will increase UV exposure.
On land:
Thin branches and tree trunks sway, and the wind is felt by the hand.
At Sea:
The sea is rough, not very large waves are well developed in length; many white horses are formed.
On land:
The wind picks up dust and small pieces of paper; small branches are moved.
At Sea:
The sea is moderately rough. Waves appear in the form of elongated ridges, some of which are overturned; fairly frequent white horses.
Protection from UV radiation from the Sun is necessary. A UV index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure. Stay in shade near midday when the sun is strongest. If outdoors, wear sun protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Bright surfaces, such as sand, water, and snow, will increase UV exposure.
On land:
Large branches of trees sway, and thin ones bend; whistling heard in telegraph wires; umbrellas used with difficulty.
At Sea:
Large waves form on the sea; the white foam crests are more extensive everywhere.
On land:
The thin branches and leaves on the trees fluctuate continuously; wind extends light flag.
At Sea:
Light and short waves are clearly visible at sea. Foam of glassy appearance. Perhaps scattered white horses.