Plum Gut Harbor, Plum Island, Long Island Sound Sea Conditions and Tide Table

Plum Gut Harbor, Plum Island, 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 07:00 AM and sunset is at 04:19 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 5°C on Tue afternoon, min -6°C on Mon morning). Winds decreasing (fresh winds from the NNW on Sun night, calm by Mon night).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Low air temperatures (max 9°C on Wed morning, min 1°C on Thu afternoon). Winds decreasing (strong winds from the SW on Wed afternoon, calm by Thu night).

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max 0°C on Sat morning, min -5°C on Sat night). Winds decreasing (fresh winds from the NW on Sun afternoon, calm by Mon afternoon).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Tue afternoon. Freeze-thaw conditions (max 7°C on Thu night, min -3°C on Tue afternoon). Winds decreasing (near gales from the N on Tue afternoon, calm by Wed night).

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
11:08AM1.09m
11:50PM0.78m
12:04PM1.00m
00:49AM0.77m
1:03PM0.91m
1:50AM0.77m
2:06PM0.81m
2:53AM0.77m
3:11PM0.73m
3:56AM0.79m
4:17PM0.68m
4:54AM0.81m
5:19PM0.64m
5:46AM0.83m
6:13PM0.62m
6:31AM0.85m
7:00PM0.61m
7:11AM0.87m
7:41PM0.61m
7:48AM0.88m
8:19PM0.62m
8:24AM0.89m
Low Tide
5:45PM-0.11m
5:50AM0.03m
6:39PM-0.06m
6:52AM0.07m
7:34PM-0.01m
7:56AM0.10m
8:30PM0.04m
9:02AM0.12m
9:25PM0.07m
10:06AM0.12m
10:19PM0.10m
11:06AM0.12m
11:10PM0.11m
12:01PM0.10m
11:57PM0.12m
12:50PM0.08m
00:42AM0.12m
1:34PM0.06m
1:25AM0.12m
2:16PM0.04m
2:06AM0.12m
2:56PM0.02m
Wave
height (m) 
direction
period (s) 
0.2
ESE
9
0.2
ESE
8
0.8
W
4
1
N
4
0.5
N
3
0.3
NNE
2
0.1
E
9
0.4
SSW
2
1.1
SW
4
0.7
SSW
3
1.3
SSW
5
1.1
SW
4
0.4
NW
3
0.1
SE
10
0
E
9
0.1
SE
8
0.4
NW
2
0.3
NNW
3
0.1
SE
7
0.1
SE
6
0.5
N
3
0.6
NNW
3
0.7
NW
4
0.4
NW
3
0
E
10
0
E
10
0.9
NE
4
1.5
NE
5
2.1
NNE
6
1.6
N
6
0.8
NNW
4
0.8
E
12
0.5
E
12
0.2
E
12
0.6
SW
3
part cloud
part cloud
clear
cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
rain showers
clear
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
light snow
cloud
light snow
part cloud
clear
clear
clear
part cloud
cloud
some clouds
some clouds
clear
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
rain shwrs
clear
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
light snow
cloudy
light snow
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
5
NNW
15
SW
35
WNW
35
N
20
NNE
15
N
10
SSW
25
SSW
40
WSW
35
SSW
45
SW
40
WSW
20
NW
10
WNW
5
WNW
10
N
20
NNW
15
NNW
10
WNW
10
WNW
25
NNW
30
NW
30
NW
15
WNW
10
W
5
S
30
NE
45
NNE
55
N
45
N
30
NNW
30
NW
20
WNW
15
SW
25
WSW
 mm 
2
max°C
3
4
3
-4
-3
-4
-1
5
7
9
9
8
3
3
1
3
3
-1
0
0
-3
-2
-1
-2
0
0
-2
-1
-2
-1
2
2
-1
3
5
Moonrise
7:16
8:32
9:44
10:52
11:57
1:00
2:01
3:03
4:06
5:09
6:11
Moonset
10:00
10:39
11:09
11:34
11:56
12:15
12:35
12:55
1:18
1:44
2:16
2:55
Sunrise
7:00
7:01
7:01
7:03
7:03
7:03
7:05
7:05
7:07
7:07
7:07
7:09
Sunset
4:19
4:19
4:19
4:19
4:20
4:20
4:20
4:20
4:20
4:21
4:21
4:21
Today's sea temperature in Plum Gut Harbor, Plum Island, Long Island Sound is
9.5° C
(Statistics for 07 Dec 1981-2005 – mean: 9.9 max: 12.8 min: 8.4°C)
Issued (local time): 12 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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