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 04:58 AM and sunset is at 09:49 PM.

Days 1–3 Weather Summary

Moderate rain (total 13mm) heaviest on Mon morning, then becoming colder with a dusting of snow on Mon night. Cool air temperatures (max 12°C on Wed night, min 1°C on Mon night). Winds increasing (light winds from the SW on Tue night, fresh winds from the SW by Wed night).

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Thu morning, min 1°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Very mild (max 16°C on Mon night, min 7°C on Sun morning). Mainly fresh winds.

Days 10–12 Weather Summary

Light rain (total 9mm), mostly falling on Thu night. Very mild (max 15°C on Wed night, min 2°C on Wed night). Winds increasing (calm on Thu afternoon, fresh winds from the NNW by Fri morning).

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
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
night
Wave Height Map
High Tide
11:44AM1.79m
11:54PM1.76m
12:18PM1.82m
00:29AM1.76m
12:51PM1.85m
1:04AM1.78m
1:26PM1.87m
1:43AM1.80m
2:07PM1.88m
2:30AM1.81m
2:54PM1.86m
3:24AM1.81m
3:50PM1.83m
4:27AM1.78m
4:55PM1.78m
5:40AM1.76m
6:09PM1.76m
6:57AM1.75m
7:25PM1.77m
8:09AM1.78m
8:33PM1.79m
9:12AM1.81m
9:33PM1.81m
Low Tide
5:30AM0.28m
5:52PM0.36m
6:05AM0.27m
6:27PM0.33m
6:39AM0.26m
7:02PM0.31m
7:15AM0.26m
7:40PM0.29m
7:56AM0.27m
8:24PM0.28m
8:44AM0.30m
9:14PM0.28m
9:41AM0.34m
10:15PM0.30m
10:47AM0.40m
11:24PM0.32m
12:01PM0.43m
00:40AM0.32m
1:18PM0.43m
1:53AM0.29m
2:28PM0.40m
2:58AM0.25m
3:29PM0.35m
3:53AM0.22m
Wave
height (m) 
direction
period (s) 
0.4
WNW
3.0
0.5
WNW
3.0
0.9
WNW
4.0
0.8
NW
5.0
0.7
NNW
9.0
0.6
NW
5.0
0.4
WNW
4.0
0.4
NW
5.0
0.6
SW
3.0
0.4
W
4.0
0.5
W
3.0
0.6
WNW
4.0
0.4
NW
4.0
0.4
NW
3.0
0.3
NW
3.0
0.3
NW
3.0
0.3
NNW
3.0
0.3
NNE
3.0
0.2
N
3.0
0.2
N
3.0
0.1
N
2.0
0.1
SW
2.0
0.3
SW
2.0
0.4
SSW
3.0
0.4
SSW
3.0
0.4
SSW
3.0
0.4
SSW
3.0
0.5
S
3.0
0.3
S
3.0
0.4
WNW
3.0
0.4
NW
3.0
0.2
WNW
4.0
0.3
NNW
3.0
0.6
NW
3.0
0.5
NW
3.0
0.3
WNW
3.0
mod rain
light rain
snow showers
clear
part cloud
part cloud
light rain
rain showers
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
light rain
cloud
cloud
part cloud
rain showers
part cloud
clear
clear
mod rain
light rain
snow shwrs
clear
some clouds
some clouds
light rain
rain shwrs
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
clear
clear
clear
clear
some clouds
clear
some clouds
cloudy
light rain
cloudy
cloudy
some clouds
rain shwrs
some clouds
clear
clear
 km/h
20
W
30
WNW
30
NW
20
W
15
WSW
20
SW
20
SW
15
SSW
35
SW
10
S
25
WNW
25
W
15
WNW
15
WNW
15
W
10
NW
10
NNW
15
ENE
15
NE
15
NE
15
SE
15
SSW
25
SSW
25
S
30
S
30
S
25
SSE
30
S
15
SSE
25
NW
15
WNW
5
N
15
NNW
30
NNW
20
NW
20
SSW
 mm 
10
1
1
1
2
7
max°C
4
3
1
3
6
8
8
9
12
8
8
4
2
4
4
5
5
7
8
9
12
13
14
16
13
13
16
11
14
15
2
5
10
4
7
9
Moonrise
11:28
11:36
11:43
11:53
12:05
12:23
12:53
1:41
2:52
4:20
5:53
Moonset
9:30
10:57
12:24
1:54
3:27
5:04
6:39
8:02
9:03
9:41
10:03
10:18
Sunrise
4:58
5:01
5:01
5:03
5:05
5:05
5:07
5:09
5:11
5:11
5:13
5:16
Sunset
9:49
9:46
9:45
9:45
9:44
9:42
9:40
9:38
9:37
9:36
9:35
9:32
Today's sea temperature in Long Island is 6.8 °C (Statistics for 14 Jul 1981-2005 – mean: 2.3 max: 4.3 min: 1.3°C)
Issued (local time): 7 am Monday 14 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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