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 04:24 PM.

Days 1–4 Weather Summary

Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Thu morning. Icy conditions (max 5°C on Tue night, min -7°C on Thu night). Winds increasing (light winds from the S on Tue afternoon, strong winds from the NW by Wed morning).

Days 5–7 Weather Summary

A dusting of snow turning to light rain (total 4mm) on Sun afternoon. Icy conditions (max 7°C on Sun night, min -4°C on Fri afternoon). Winds increasing (calm on Sat night, strong winds from the W by Mon morning).

Days 8–10 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Wed night, min -4°C on Mon night). Winds decreasing (near gales from the W on Mon night, moderate winds from the W by Wed morning).

Days 11–13 Weather Summary

Mostly dry. Temperatures will be below freezing (max -3°C on Thu afternoon, min -9°C on Thu night). Mainly strong winds.

Tue
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sun
4
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
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
5:45PM0.60m
6:12AM0.89m
6:46PM0.60m
7:07AM0.94m
7:41PM0.62m
8:00AM0.97m
8:38PM0.64m
8:54AM0.99m
9:32PM0.67m
9:47AM0.98m
10:24PM0.70m
10:39AM0.95m
Low Tide
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
11:48PM0.04m
12:50PM-0.04m
00:41AM0.02m
1:44PM-0.09m
1:34AM-0.00m
2:35PM-0.12m
2:28AM-0.03m
3:26PM-0.15m
3:23AM-0.05m
4:17PM-0.16m
4:17AM-0.06m
Wave
height (m) 
direction
period (s) 
0.3
SE
10
0.5
S
5
0.9
NNW
4
0.9
N
4
0.3
ESE
10
0.8
ESE
10
0.8
ESE
10
0.9
N
4
0.7
N
4
0.3
ESE
11
0.4
ENE
3
0.8
ESE
13
0.7
ESE
12
0.6
ESE
12
0.4
ESE
12
0.6
ESE
12
0.9
SSE
6
1
WNW
4
1
WNW
4
1
W
4
1.1
W
4
1
W
4
0.8
WNW
4
0.4
SSW
6
0.4
W
3
0.5
SSW
5
0.9
SSW
7
0.9
SSW
7
0.7
NW
4
0.9
WNW
4
0.9
WNW
4
0.7
WNW
4
0.4
W
3
0.5
WSW
3
0.6
SSW
6
0.7
NNW
4
light rain
part cloud
clear
clear
part cloud
snow showers
part cloud
clear
part cloud
part cloud
light snow
part cloud
clear
part cloud
part cloud
light rain
rain showers
clear
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
light snow
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
light rain
some clouds
clear
clear
some clouds
snow shwrs
some clouds
clear
some clouds
some clouds
light snow
some clouds
clear
some clouds
some clouds
light rain
rain shwrs
clear
cloudy
cloudy
cloudy
some clouds
some clouds
clear
some clouds
some clouds
light snow
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
clear
 km/h
15
SE
30
W
40
NW
30
N
10
WSW
35
SW
30
NW
30
NNW
25
N
10
ENE
20
ENE
25
NE
20
NE
10
ENE
10
SSE
25
S
25
WSW
45
WNW
45
W
50
W
45
W
45
W
35
WNW
20
W
25
W
30
WSW
35
WSW
40
NW
35
WNW
40
WNW
40
WNW
35
WNW
25
WSW
30
WSW
30
W
25
NNW
 mm 
2
3
1
max°C
4
5
4
4
2
4
4
-3
-5
-3
-4
-1
-1
-3
1
5
7
-2
-3
-3
-1
-1
-2
-1
0
3
1
-3
-8
-7
-7
-7
-4
-3
-3
-6
Moonrise
10:19
10:42
11:03
11:25
11:48
12:15
12:48
1:30
2:24
3:30
4:47
Moonset
7:54
9:01
10:08
11:16
12:26
1:40
2:57
4:17
5:36
6:47
7:46
8:31
Sunrise
7:11
7:11
7:13
7:13
7:13
7:13
7:13
7:13
7:13
7:13
7:13
7:13
Sunset
4:24
4:24
4:25
4:25
4:27
4:28
4:29
4:29
4:30
4:30
4:31
4:32
Today's sea temperature in Greenport, Long Island Sound is
6.2° C
(Statistics for 23 Dec 1981-2005 – mean: 8.2 max: 10.3 min: 6.5°C)
Issued (local time): 6 pm Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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