Long Island Sea Conditions and Tide Table

Long Island Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at — and sunset is at —.

Days 1–4 Weather Summary

Mostly dry. Air temperatures will be below freezing (max -1°C on Sun afternoon, min -13°C on Fri night). Mainly fresh winds.

Days 5–7 Weather Summary

Moderate rain (total 13mm), heaviest on Mon afternoon. Icy conditions (max 6°C on Mon night, min -10°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue afternoon).

Days 8–10 Weather Summary

Mostly dry. Temperatures will be below freezing (max -4°C on Fri afternoon, min -13°C on Wed night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon afternoon, min -11°C on Sat night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tue
6
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
3:55AM6.46m
4:15PM6.64m
4:46AM6.63m
5:09PM6.63m
5:40AM6.79m
6:07PM6.62m
6:37AM6.95m
7:07PM6.61m
7:36AM7.10m
8:09PM6.63m
8:37AM7.24m
9:09PM6.61m
9:36AM7.31m
10:10PM6.69m
10:35AM7.41m
11:08PM6.78m
11:31AM7.47m
00:03AM6.84m
12:24PM7.46m
00:55AM6.86m
1:15PM7.36m
1:45AM6.84m
2:04PM7.18m
Low Tide
9:49PM0.97m
10:11AM1.27m
10:38PM0.93m
11:04AM1.13m
11:31PM0.92m
12:02PM0.99m
00:27AM0.93m
1:02PM0.83m
1:26AM0.93m
2:03PM0.68m
2:26AM0.92m
3:04PM0.53m
3:26AM0.94m
4:04PM0.45m
4:26AM0.86m
5:02PM0.33m
5:23AM0.78m
5:58PM0.25m
6:18AM0.73m
6:50PM0.24m
7:10AM0.73m
7:39PM0.31m
7:59AM0.78m
Wave
height (m) 
direction
period (s) 
0.8
N
4
0.7
N
4
0.5
N
3
0.3
N
3
0.3
N
2
0.4
NNW
3
0.6
NNW
3
0.8
NNW
4
0.5
NW
3
0.1
NW
2
0.2
SSE
2
0.6
SE
3
0.3
SSW
2
0.8
WSW
4
0.9
WSW
4
0.8
W
4
0.7
W
4
0.6
WSW
4
0.3
WNW
3
0.2
W
2
0.3
W
2
0.4
WSW
3
0.3
WSW
2
0.2
WSW
2
0.1
W
2
0.4
NW
3
0.2
WNW
2
0.2
WNW
2
0.1
W
2
0.1
W
2
0
W
1
0.2
SSW
2
0.3
SSW
3
0.1
W
2
0
W
1
0.1
W
1
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
clear
cloud
cloud
mod rain
mod rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
some clouds
clear
clear
clear
some clouds
clear
some clouds
clear
clear
cloudy
cloudy
mod rain
mod rain
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
 km/h
35
NNW
25
NNW
20
NNW
15
NNW
15
NNW
20
NNW
30
NW
35
NW
20
WNW
10
NW
15
SE
25
ESE
20
SW
35
WSW
35
W
30
W
35
WSW
25
WSW
15
WNW
15
W
20
W
20
W
15
WSW
10
WSW
5
WNW
20
NW
15
WNW
15
WNW
10
WNW
5
WSW
5
WSW
15
SW
10
SW
5
NW
5
NNW
10
NNW
 mm 
7
6
max°C
-5
-11
-9
-11
-11
-7
-7
-4
-1
-3
2
4
6
-2
-5
-8
-9
-6
-6
-12
-10
-10
-6
-4
-4
-10
-10
-10
-10
-5
-3
0
3
1
-1
0
Moonrise
11:43
12:01
12:21
12:44
1:13
1:51
2:42
3:48
5:07
6:29
7:50
Moonset
10:42
11:54
1:08
2:25
3:46
5:10
6:32
7:44
8:41
9:24
9:55
10:19
Sunrise
8:04
8:04
8:06
8:06
8:06
8:06
8:06
8:06
8:06
8:06
8:06
8:06
Sunset
4:51
4:52
4:52
4:52
4:53
4:54
4:55
4:57
4:58
4:59
5:00
5:00
Today's sea temperature in Long Island is
5.3° C
(Statistics for 25 Dec 1981-2005 – mean: 5.9 max: 7.1 min: 4.6°C)
Issued (local time): 7 pm Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest