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 07:07 AM and sunset is at 04:22 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm), heaviest 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 S by Fri morning).

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 6°C on Sat night, min -6°C on Mon night). Winds increasing (light winds from the SW on Sat afternoon, strong winds from the WNW by Sun afternoon).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 5°C on Wed afternoon, min -6°C on Tue morning). Winds increasing (calm on Tue morning, fresh winds from the W by Tue night).

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Fri night. Freeze-thaw conditions (max 8°C on Fri night, min -8°C on Sun night). Winds increasing (calm on Fri morning, strong winds from the NW by Sun afternoon).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
8:25AM0.81m
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
Wave
height (m) 
direction
period (s) 
0.8
SSW
5
0.8
S
6
0.6
S
7
0.4
S
7
0.6
S
4
1.2
SSE
6
2.1
SSE
9
1.8
SSE
10
1.6
SSE
10
1
SSE
10
0.7
SSE
10
1
SSE
9
1
S
8
1
S
8
1
WNW
4
0.9
NW
4
0.9
NNW
4
0.6
NNW
4
0.4
SE
10
0.1
SE
10
0.3
SSW
3
0.6
WNW
3
0.4
WNW
3
0.4
NW
3
0.4
NW
3
0.4
NW
3
0.4
N
3
0.3
NNE
3
0.2
ESE
9
0.4
S
3
1.2
S
7
0.9
S
7
0.8
S
7
0.9
WNW
4
1.1
NW
4
1
NNW
4
part cloud
clear
part cloud
clear
clear
light rain
heavy rain
rain showers
part cloud
clear
part cloud
cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
snow showers
clear
clear
cloud
part cloud
clear
part cloud
part cloud
part cloud
light rain
light rain
cloud
clear
clear
clear
clear
some clouds
clear
some clouds
clear
clear
light rain
heavy rain
rain shwrs
some clouds
clear
some clouds
cloudy
clear
clear
clear
some clouds
some clouds
clear
some clouds
cloudy
snow shwrs
clear
clear
cloudy
some clouds
clear
some clouds
some clouds
some clouds
light rain
light rain
cloudy
clear
clear
clear
clear
 km/h
30
SW
35
WSW
10
NW
10
S
15
SSE
35
S
55
S
40
WSW
50
W
30
WNW
15
SW
35
SSW
30
WSW
40
W
40
WNW
35
NW
35
NW
25
NNW
15
N
10
SW
20
WSW
30
WNW
20
WNW
20
NW
20
NW
20
NNW
15
N
15
NNE
5
SSE
25
S
30
SW
30
WSW
30
WNW
40
WNW
45
NW
40
NW
 mm 
3
11
1
4
1
max°C
6
5
4
6
9
13
13
8
0
0
1
6
5
6
-1
-2
-1
-5
-4
-2
1
4
5
2
3
3
-1
-2
-1
8
8
8
5
2
0
-4
Moonrise
5:09
6:11
7:09
8:01
8:45
9:22
9:53
10:19
10:42
11:03
11:25
11:48
Moonset
2:17
2:56
3:43
4:39
5:41
6:47
7:54
9:01
10:08
11:16
12:26
Sunrise
7:07
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
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): 12 pm Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest