Wind, waves, weather & tide forecast Port Jefferson Harbor entrance, Long Island
Daily forecast
as
Last update: 00:37 local time / This forecast is based on the GFS model
Thursday, Sep 18
Wind
Weather
Waves
Tides
02h
9 kts
max 10 kts
1.38 mm
19° C
1013 hpa
1.1 m
7 s
03:19
0.1
m
05h
10 kts
max 12 kts
19° C
1013 hpa
1.0 m
7 s
0.5
m
08h
7 kts
max 10 kts
18° C
1013 hpa
0.9 m
7 s
09:25
2.0
m
11h
4 kts
max 5 kts
20° C
1013 hpa
0.8 m
7 s
1.8
m
14h
4 kts
max 5 kts
22° C
1012 hpa
0.8 m
7 s
0.5
m
17h
4 kts
max 6 kts
24° C
1010 hpa
0.8 m
7 s
15:35
0.2
m
20h
6 kts
max 8 kts
23° C
1011 hpa
0.7 m
7 s
1.8
m
23h
8 kts
max 12 kts
21° C
1011 hpa
0.7 m
7 s
21:47
2.2
m
Friday, Sep 19
Wind
Weather
Waves
Tides
02h
5 kts
max 7 kts
21° C
1011 hpa
0.7 m
7 s
0.7
m
05h
6 kts
max 8 kts
20° C
1011 hpa
0.6 m
7 s
04:10
0.1
m
08h
5 kts
max 7 kts
20° C
1013 hpa
0.6 m
7 s
1.5
m
11h
3 kts
max 5 kts
22° C
1014 hpa
0.6 m
7 s
10:15
2.1
m
14h
3 kts
max 7 kts
24° C
1013 hpa
0.6 m
7 s
0.8
m
17h
2 kts
max 5 kts
25° C
1012 hpa
0.6 m
6 s
16:27
0.1
m
20h
8 kts
max 14 kts
24° C
1015 hpa
0.5 m
7 s
1.4
m
23h
10 kts
max 17 kts
21° C
1017 hpa
0.5 m
7 s
22:35
2.2
m
Saturday, Sep 20
Wind
Weather
Waves
Tides
02h
15 kts
max 23 kts
19° C
1018 hpa
0.5 m
7 s
1.0
m
05h
15 kts
max 20 kts
17° C
1020 hpa
0.5 m
5 s
04:54
0.1
m
08h
15 kts
max 18 kts
17° C
1022 hpa
0.6 m
5 s
1.1
m
11h
14 kts
max 14 kts
18° C
1023 hpa
0.7 m
5 s
10:59
2.2
m
14h
12 kts
max 12 kts
20° C
1023 hpa
0.7 m
6 s
1.2
m
17h
9 kts
max 9 kts
21° C
1022 hpa
0.7 m
6 s
17:13
0.1
m
20h
9 kts
max 11 kts
18° C
1023 hpa
0.7 m
6 s
1.0
m
23h
10 kts
max 14 kts
17° C
1024 hpa
0.6 m
6 s
23:19
2.2
m
Sunday, Sep 21
Wind
Weather
Waves
Tides
02h
8 kts
max 10 kts
17° C
1025 hpa
0.6 m
7 s
1.4
m
05h
8 kts
max 12 kts
16° C
1024 hpa
0.6 m
8 s
05:33
0.1
m
08h
10 kts
max 14 kts
17° C
1025 hpa
0.6 m
12 s
0.8
m
11h
13 kts
max 13 kts
19° C
1025 hpa
0.7 m
12 s
11:40
2.2
m
14h
12 kts
max 12 kts
20° C
1024 hpa
0.8 m
12 s
1.6
m
17h
12 kts
max 12 kts
19° C
1023 hpa
0.9 m
12 s
17:55
0.0
m
20h
8 kts
max 10 kts
17° C
1023 hpa
0.9 m
12 s
0.6
m
23h
6 kts
max 7 kts
16° C
1023 hpa
0.9 m
12 s
00:00
2.2
m
Monday, Sep 22
Wind
Weather
Waves
Tides
02h
5 kts
max 6 kts
15° C
1021 hpa
0.9 m
11 s
1.6
m
05h
6 kts
max 7 kts
15° C
1020 hpa
0.9 m
11 s
06:10
0.1
m
08h
6 kts
max 6 kts
15° C
1020 hpa
0.9 m
11 s
0.5
m
11h
3 kts
max 3 kts
18° C
1020 hpa
0.9 m
11 s
12:17
2.2
m
14h
4 kts
max 4 kts
18° C
1018 hpa
0.9 m
10 s
1.9
m
17h
3 kts
max 4 kts
19° C
1016 hpa
0.9 m
10 s
0.4
m
20h
8 kts
max 9 kts
19° C
1016 hpa
0.9 m
10 s
18:35
0.0
m
23h
9 kts
max 12 kts
19° C
1016 hpa
1.0 m
10 s
1.7
m
Tuesday, Sep 23
Wind
Weather
Waves
Tides
02h
10 kts
max 15 kts
19° C
1015 hpa
0.9 m
9 s
00:39
2.1
m
05h
11 kts
max 17 kts
19° C
1015 hpa
0.9 m
9 s
0.5
m
08h
10 kts
max 15 kts
20° C
1016 hpa
0.9 m
10 s
06:45
0.1
m
11h
11 kts
max 14 kts
22° C
1015 hpa
0.8 m
10 s
1.8
m
14h
9 kts
max 13 kts
24° C
1014 hpa
0.8 m
10 s
12:53
2.2
m
17h
9 kts
max 13 kts
25° C
1012 hpa
0.9 m
9 s
0.7
m
20h
10 kts
max 16 kts
22° C
1013 hpa
0.9 m
9 s
19:13
0.1
m
23h
7 kts
max 10 kts
22° C
1014 hpa
0.9 m
9 s
1.4
m
Wednesday, Sep 24
Wind
Weather
Waves
Tides
02h
8 kts
max 14 kts
22° C
1015 hpa
0.9 m
9 s
01:17
2.0
m
05h
6 kts
max 8 kts
22° C
1015 hpa
0.9 m
9 s
0.8
m
08h
4 kts
max 4 kts
22° C
1016 hpa
0.9 m
10 s
07:19
0.2
m
11h
7 kts
max 8 kts
23° C
1017 hpa
0.9 m
9 s
1.5
m
14h
8 kts
max 8 kts
24° C
1017 hpa
0.9 m
9 s
13:29
2.2
m
17h
7 kts
max 10 kts
24° C
1017 hpa
0.9 m
9 s
1.0
m
20h
8 kts
max 12 kts
21° C
1019 hpa
0.9 m
9 s
19:51
0.1
m
23h
10 kts
max 12 kts
20° C
1020 hpa
0.8 m
9 s
1.1
m
Thursday, Sep 25
Wind
Weather
Waves
Tides
02h
8 kts
max 9 kts
19° C
1020 hpa
0.8 m
9 s
01:56
2.0
m
05h
10 kts
max 12 kts
19° C
1020 hpa
0.8 m
9 s
1.0
m
08h
9 kts
max 10 kts
19° C
1021 hpa
0.8 m
9 s
07:55
0.3
m
11h
9 kts
max 9 kts
20° C
1021 hpa
0.8 m
9 s
1.2
m
14h
10 kts
max 10 kts
22° C
1020 hpa
0.7 m
9 s
14:06
2.2
m
17h
8 kts
max 10 kts
22° C
1019 hpa
0.7 m
9 s
1.3
m
20h
6 kts
max 9 kts
21° C
1019 hpa
0.7 m
8 s
20:30
0.2
m
23h
6 kts
max 9 kts
21° C
1019 hpa
0.7 m
8 s
0.8
m
Friday, Sep 26
Wind
Weather
Waves
Tides
02h
5 kts
max 9 kts
21° C
1018 hpa
0.7 m
8 s
02:36
1.9
m
05h
5 kts
max 9 kts
20° C
1017 hpa
0.7 m
8 s
1.3
m
08h
4 kts
max 6 kts
20° C
1017 hpa
0.7 m
8 s
08:33
0.4
m
11h
3 kts
max 6 kts
23° C
1017 hpa
0.7 m
8 s
1.0
m
14h
6 kts
max 10 kts
25° C
1015 hpa
0.7 m
8 s
14:44
2.1
m
17h
11 kts
max 15 kts
24° C
1014 hpa
0.8 m
8 s
1.5
m
20h
9 kts
max 16 kts
21° C
1014 hpa
0.7 m
8 s
21:12
0.2
m
23h
8 kts
max 15 kts
21° C
1014 hpa
0.7 m
8 s
0.6
m
Saturday, Sep 27
Wind
Weather
Waves
Tides
02h
6 kts
max 15 kts
1.37 mm
20° C
1014 hpa
0.7 m
8 s
03:19
1.8
m
05h
8 kts
max 17 kts
21° C
1013 hpa
0.7 m
8 s
1.5
m
08h
5 kts
max 9 kts
1.44 mm
20° C
1013 hpa
0.7 m
8 s
09:16
0.4
m
11h
5 kts
max 7 kts
21° C
1013 hpa
0.7 m
8 s
0.7
m
14h
5 kts
max 7 kts
22° C
1012 hpa
0.7 m
8 s
15:27
2.0
m
17h
6 kts
max 8 kts
0.98 mm
22° C
1013 hpa
1.8
m
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Additional information
General
This is the wind, wave and weather forecast for Port Jefferson Harbor entrance, Long Island in New York, United States of America. Windfinder specializes in wind, waves, tides and weather reports & forecasts for wind related sports like kitesurfing, windsurfing, surfing, sailing, fishing or paragliding.
Forecast
This forecast is based on the GFS model. Forecasts are available worldwide. The horizontal resolution is about 13 km. Forecasts are computed 4 times a day, at about 1:00 AM, 7:00 AM, 1:00 PM and 7:00 PM Eastern Daylight Time. Predictions are available in time steps of 3 hours for up to 10 days into the future. The arrows point in the direction in which the wind is blowing.Check the wind forecast for Port Jefferson Harbor entrance, Long Island when you search for the best travel destinations for your kiteboarding, windsurfing or sailing vacations in United States of America. Or use our wind forecast to find the wind speed today in Port Jefferson Harbor entrance, Long Island or to have a look at the wind direction tomorrow at Port Jefferson Harbor entrance, Long Island.
Severe Weather Warnings
When a severe weather warning or advisory is provided by the local meteorological institute, we display it as a banner above the wind forecast.The weather warning, for example a high wind warning, can help you prepare for dangerous weather conditions and avoid weather-related risks. The color scale indicates the intensity of the predicted weather event. For more details click or tap on the warning. General information about severe weather warnings can be found in our help section.
Please be aware that severe weather may occur without a prior severe weather warning being reported.
Units
We use knots and degrees Celsius as our default units. These units are often used by sailors, kiters, surfers, windsurfers and paragliders. Use website settings to switch between units and 7 different languages at any time. For converting between wind speed units such as knots, km/h (kilometers per hour), m/s (meters per second), and mph (miles per hour) use our wind speed calculator.