Greenport, Long Island Sound Sea Conditions and Tide Table

Greenport, Long Island Sound 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 04:22 PM.

Days 1–4 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Icy conditions (max 13°C on Thu night, min -2°C on Fri night). Winds increasing (calm on Wed night, near gales from the W by Fri afternoon).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 7°C on Sat night, min -4°C on Mon night). Winds decreasing (strong winds from the WNW on Sun afternoon, light winds from the SW by Mon night).

Days 8–10 Weather Summary

A dusting of snow turning to light rain (total 2mm) on Thu morning. Freeze-thaw conditions (max 5°C on Tue night, min -2°C on Wed afternoon). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Wed night).

Days 11–13 Weather Summary

A dusting of snow turning to light rain (total 2mm) on Sat morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -5°C on Sun afternoon). Winds decreasing (fresh winds from the NW on Sun morning, light winds from the NE by Sun night).

Wed
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
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
AM
Wave Height Map
High Tide
8:56PM0.57m
9:01AM0.82m
9:34PM0.58m
9:36AM0.83m
10:12PM0.59m
10:12AM0.83m
10:51PM0.60m
10:49AM0.83m
11:31PM0.61m
11:28AM0.81m
00:12AM0.62m
12:09PM0.79m
00:56AM0.64m
12:53PM0.75m
1:42AM0.66m
1:43PM0.71m
2:31AM0.69m
2:38PM0.67m
3:24AM0.73m
3:38PM0.63m
4:20AM0.78m
4:42PM0.61m
5:16AM0.84m
Low Tide
2:49PM0.03m
2:39AM0.11m
3:29PM0.02m
3:20AM0.12m
4:10PM0.00m
4:01AM0.12m
4:50PM-0.01m
4:43AM0.13m
5:31PM-0.01m
5:27AM0.14m
6:14PM-0.00m
6:13AM0.15m
6:56PM0.01m
7:03AM0.16m
7:41PM0.03m
7:57AM0.15m
8:27PM0.05m
8:56AM0.14m
9:14PM0.06m
9:56AM0.11m
10:04PM0.06m
10:56AM0.07m
10:55PM0.06m
11:54AM0.02m
Wave
height (m) 
direction
period (s) 
0.8
S
6
0.7
S
7
0.5
S
7
0.6
S
7
1.1
SSE
6
2
SSE
8
1.7
SSE
10
1.5
SSE
10
0.9
SSE
10
0.6
SSE
10
1
SSE
9
1.1
S
8
1
S
8
1
WNW
4
1.1
NW
4
1.1
NW
4
0.4
NW
3
0.3
SE
10
1
SSW
5
0.8
SSW
7
0.8
NW
4
0.7
NNW
4
0.1
SE
10
0.3
SSW
2
0.4
SSW
4
0.5
S
6
0.4
S
6
0.3
S
6
0.6
E
4
0.6
ESE
4
0.4
ESE
4
0.5
SE
5
0.6
NNW
3
0.8
NNW
4
0.2
N
3
0.1
SE
9
clear
clear
clear
clear
rain showers
mod rain
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
clear
clear
part cloud
part cloud
light snow
light rain
part cloud
part cloud
cloud
cloud
light snow
light rain
clear
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
rain shwrs
mod rain
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
clear
clear
some clouds
some clouds
light snow
light rain
some clouds
some clouds
cloudy
cloudy
light snow
light rain
clear
some clouds
cloudy
cloudy
cloudy
 km/h
30
WSW
15
NNW
10
S
15
SSE
30
S
45
SSE
35
WSW
50
W
30
WNW
15
SW
30
SSW
30
WSW
40
W
45
WNW
40
NW
40
NW
20
WNW
20
SW
40
SW
30
W
35
NW
30
NNW
5
NNW
20
SSW
10
S
20
N
15
NE
10
NE
20
NE
15
E
10
WNW
25
WNW
30
NW
30
NNW
10
N
15
E
 mm 
1
6
1
1
1
1
max°C
6
5
5
9
13
12
7
0
0
1
7
6
7
-1
-1
-1
-2
2
3
5
2
0
1
2
4
2
1
2
2
2
3
1
-2
-3
-5
-4
Moonrise
6:11
7:09
8:01
8:45
9:22
9:53
10:19
10:42
11:03
11:25
11:48
12:15
Moonset
2:56
3:43
4:39
5:41
6:47
7:54
9:01
10:08
11:16
12:26
1:40
Sunrise
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
Sunset
4:22
4:22
4:22
4:22
4:23
4:23
4:24
4:24
4:25
4:25
4:27
4:28
Today's sea temperature in Greenport, Long Island Sound is
7.3° C
(Statistics for 17 Dec 1981-2005 – mean: 8.8 max: 11.9 min: 7.3°C)
Issued (local time): 6 pm Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest