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 07:11 AM and sunset is at 04:23 PM.

Days 1–3 Weather Summary

A dusting of snow on Tue morning. Freezing level rising with drizzle on Tue afternoon. Icy conditions (max 6°C on Sat night, min -3°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun morning, light winds from the WSW by Tue morning).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Fri morning. Cool air temperatures (max 12°C on Fri morning, min 1°C on Wed night). Winds increasing (calm on Wed night, strong winds from the NW by Fri afternoon).

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Sun morning. Freeze-thaw conditions (max 5°C on Sun morning, min -8°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri night, calm by Sat afternoon).

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Tue night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -2°C on Mon night). Winds increasing (calm on Mon night, strong winds from the ENE by Wed afternoon).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
Wave Height Map
High Tide
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
6:46PM0.60m
7:07AM0.94m
7:41PM0.62m
8:00AM0.97m
Low Tide
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
12:50PM-0.04m
00:41AM0.02m
1:44PM-0.09m
1:34AM-0.00m
2:35PM-0.12m
Wave
height (m) 
direction
period (s) 
1.1
S
8
1
S
8
0.8
NW
4
0.8
NNW
4
0.5
SE
9
0.4
SE
9
0.4
SW
5
0.4
SW
5
0.4
SE
10
0.6
NW
3
0.6
NNW
3
0.2
S
7
0.4
SE
6
0.4
ESE
8
0.6
ESE
9
0.9
S
6
1.1
S
7
1
S
9
0.7
SSE
9
0.4
SSE
9
0.3
SSE
8
0.7
S
4
0.6
S
5
0.5
S
6
0.5
N
3
0.3
NNE
3
0.2
ESE
7
0.2
ESE
11
0.2
ESE
10
0.6
ESE
4
1.4
ESE
6
1.5
ESE
6
1.5
ESE
8
1.3
ESE
9
1
ESE
9
clear
clear
clear
clear
cloud
cloud
light snow
light rain
light rain
clear
part cloud
cloud
cloud
cloud
light rain
mod rain
part cloud
clear
clear
clear
part cloud
light rain
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
cloudy
cloudy
light snow
light rain
light rain
clear
some clouds
cloudy
cloudy
cloudy
light rain
mod rain
some clouds
clear
clear
clear
some clouds
light rain
clear
clear
clear
clear
some clouds
cloudy
cloudy
light rain
light rain
cloudy
some clouds
clear
clear
 km/h
35
W
35
NW
30
NW
30
NW
20
WNW
20
WSW
10
WSW
10
ENE
10
N
30
NW
20
NNW
0
NE
20
SSW
10
SSW
10
WSW
30
SW
30
WNW
30
N
20
NNE
5
E
15
S
25
SW
20
W
25
NNW
20
N
15
N
10
NNE
5
E
10
ESE
20
ESE
40
E
40
ENE
35
NNE
25
NNE
20
NNE
 mm 
1
1
1
9
2
3
2
max°C
5
2
-1
0
1
3
2
2
3
5
4
3
5
6
8
12
11
-1
-5
-4
4
5
3
3
2
2
0
0
2
3
3
2
1
3
4
Moonrise
8:45
9:22
9:53
10:19
10:42
11:03
11:25
11:48
12:15
12:48
1:30
2:24
Moonset
5:41
6:47
7:54
9:01
10:08
11:16
12:26
1:40
2:57
4:17
5:36
Sunrise
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
7:13
7:13
Sunset
4:23
4:23
4:24
4:24
4:25
4:25
4:27
4:28
4:29
4:29
4:30
4:30
Today's sea temperature in Greenport, Long Island Sound is
6.5° C
(Statistics for 21 Dec 1981-2005 – mean: 8.4 max: 10.3 min: 6.5°C)
Issued (local time): 12 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest