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 07:09 AM and sunset is at 04:22 PM.

Days 1–3 Weather Summary

Moderate rain (total 16mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds increasing (light winds from the SE on Thu morning, gales from the S by Fri morning).

Days 4–6 Weather Summary

Drizzle at first, then turning colder with dusting of snow on Tue afternoon. Icy conditions (max 6°C on Sun morning, min -5°C on Sun night). Winds increasing (light winds from the NW on Mon night, strong winds from the SW by Tue morning).

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Thu night. Freeze-thaw conditions (max 12°C on Fri afternoon, min -4°C on Wed afternoon). Winds increasing (light winds from the WNW on Wed night, strong winds from the SW by Thu night).

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Sun night. Freeze-thaw conditions (max 6°C on Sun night, min -2°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the NNW by Mon afternoon).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
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
5:45PM0.60m
6:12AM0.89m
Low Tide
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
11:48PM0.04m
Wave
height (m) 
direction
period (s) 
0.5
S
7
0.6
S
7
1.1
SSE
6
2.3
SSE
8
1.9
SSE
11
1.8
SSE
11
1
SSE
10
0.8
SSE
10
1
SSE
9
1.1
S
8
1.1
S
8
0.9
WNW
4
0.9
NNW
4
0.8
NNW
4
0.2
ESE
10
0.8
SSW
4
1.1
SSW
7
0.8
SSW
8
1
NNW
4
0.7
NNW
4
0.3
NNW
3
0.1
SE
10
0.5
SSW
4
1
S
6
1.4
S
9
1.3
S
9
0.8
S
9
0.6
S
8
0.5
S
8
0.3
S
7
0.3
S
7
0.2
SSE
6
0.3
SSE
6
0.3
S
5
0.4
SSE
5
0.9
N
4
clear
clear
light rain
heavy rain
light rain
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
snow showers
clear
clear
clear
clear
part cloud
cloud
mod rain
rain showers
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
part cloud
clear
clear
clear
clear
light rain
heavy rain
light rain
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
light rain
snow shwrs
clear
clear
clear
clear
some clouds
cloudy
mod rain
rain shwrs
clear
some clouds
some clouds
clear
some clouds
cloudy
cloudy
light rain
some clouds
clear
clear
 km/h
10
SE
20
SE
25
SSE
65
S
35
WSW
50
W
25
WNW
15
WSW
30
SSW
35
WSW
40
WNW
40
WNW
35
NW
30
NW
15
W
35
SW
40
WSW
35
WNW
40
NW
30
NNW
10
NW
15
SW
25
SW
35
SW
35
WSW
30
W
20
WNW
20
NNW
5
NW
5
W
0
ESE
10
SE
10
ESE
10
NNW
25
NNW
35
N
 mm 
2
11
3
1
7
1
4
max°C
6
10
13
13
8
0
0
2
7
6
4
-1
-3
-3
0
2
2
4
-2
-2
-3
3
5
8
11
12
6
4
4
3
4
5
6
6
6
0
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
4:23
4:23
4:24
4:24
4:25
4:25
4:27
4:28
4:29
Today's sea temperature in Greenport, Long Island Sound is
6.7° C
(Statistics for 18 Dec 1981-2005 – mean: 8.7 max: 11.9 min: 7.1°C)
Issued (local time): 12 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest