Plum Island Sound (south end) Sea Conditions and Tide Table

Plum Island Sound (south end) 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 06:50 AM and sunset is at 05:02 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Fri night. Air temperatures will be below freezing (max -1°C on Sat morning, min -16°C on Sat night). Winds increasing (light winds from the NE on Fri night, fresh winds from the NE by Sat morning).

Days 4–6 Weather Summary

A light covering of new snow, mostly falling on Wed morning. Icy conditions (max 2°C on Wed afternoon, min -11°C on Mon morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Sat morning, min -8°C on Thu night). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Tue night, min -4°C on Sun morning). Wind will be generally light.

Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sat
21
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
2:38PM2.70m
3:02AM2.76m
3:25PM2.56m
3:47AM2.70m
4:14PM2.42m
4:36AM2.64m
5:06PM2.30m
5:27AM2.58m
6:01PM2.20m
6:21AM2.54m
6:57PM2.15m
7:17AM2.53m
7:53PM2.14m
8:11AM2.56m
8:46PM2.16m
9:02AM2.62m
9:35PM2.23m
9:48AM2.69m
10:19PM2.33m
10:32AM2.76m
11:01PM2.44m
11:15AM2.82m
11:41PM2.58m
11:57AM2.86m
00:22AM2.71m
12:40PM2.88m
1:04AM2.84m
1:25PM2.86m
Low Tide
8:34AM0.02m
8:54PM0.05m
9:23AM0.09m
9:39PM0.18m
10:13AM0.17m
10:27PM0.30m
11:05AM0.25m
11:17PM0.41m
12:00PM0.31m
00:11AM0.48m
12:56PM0.34m
1:05AM0.52m
1:53PM0.34m
1:59AM0.51m
2:46PM0.30m
2:51AM0.47m
3:35PM0.24m
3:39AM0.41m
4:20PM0.17m
4:24AM0.32m
5:01PM0.09m
5:08AM0.23m
5:40PM0.02m
5:51AM0.12m
6:19PM-0.03m
6:34AM0.02m
6:59PM-0.06m
7:19AM-0.06m
Wave
height (m) 
direction
period (s) 
0.8
NE
4
0.6
NE
4
0.6
ENE
5
1
E
4
1.6
ENE
6
1.5
E
11
1.2
E
11
1.1
E
11
1
E
10
0.7
E
10
0.6
E
10
0.4
E
10
0.4
E
11
0.4
E
11
0.3
E
11
0.7
SSE
4
0.6
SE
5
0.6
SW
4
0.6
WNW
3
0.6
WNW
3
0.7
NW
3
0.7
NW
4
0.7
WNW
3
0.5
WSW
3
0.6
W
3
0.6
WNW
3
0.5
N
5
0.3
E
10
0.2
E
10
0.3
E
5
0.9
E
5
1
E
6
0.8
ESE
6
0.9
ESE
8
1
ESE
9
1
ESE
10
1.1
E
10
1.2
E
10
1
E
12
0.6
E
11
0.5
E
11
0.5
E
11
0.3
E
10
0.5
E
10
0.4
E
9
0.9
ENE
5
0.7
ENE
5
cloud
cloud
light snow
light snow
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
light snow
light snow
clear
part cloud
cloud
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
light snow
light snow
part cloud
part cloud
part cloud
cloudy
cloudy
light snow
light snow
cloudy
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
light snow
light snow
clear
some clouds
cloudy
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
clear
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
light rain
cloudy
light snow
light snow
some clouds
some clouds
some clouds
 km/h
20
NNE
15
NNE
15
ESE
25
E
35
NNE
30
NW
25
NW
25
NW
20
NW
15
NW
15
WNW
10
NNW
5
WNW
5
SW
10
SSW
20
S
10
SSW
25
W
25
W
25
WNW
30
WNW
30
WNW
30
WNW
25
WSW
30
W
20
NW
20
WNW
15
N
5
NE
15
ENE
20
ENE
20
NE
10
NNW
5
N
5
SSW
20
SSW
25
SSW
25
SSW
20
SW
10
SW
10
SW
10
WNW
10
N
10
NE
15
NNE
20
NE
10
NE
 mm 
1
max°C
-3
-2
-3
-1
-2
-12
-9
-9
-13
-6
-5
-8
-4
-2
-3
1
2
1
-1
-2
-6
-2
-1
0
2
2
-2
-2
-1
0
0
-2
-2
-1
0
1
4
5
5
6
7
4
1
0
1
-1
0
Moonrise
10:35
11:40
12:45
1:50
2:51
3:48
4:38
5:20
5:54
6:22
6:47
7:08
7:29
7:50
8:12
Moonset
8:53
9:13
9:36
10:03
10:36
11:16
12:05
1:03
2:08
3:17
4:28
5:39
6:50
8:02
9:15
Sunrise
6:50
6:50
6:48
6:48
6:46
6:45
6:43
6:41
6:41
6:39
6:37
6:37
6:35
6:33
6:31
6:31
Sunset
5:02
5:04
5:05
5:07
5:07
5:08
5:10
5:12
5:13
5:14
5:15
5:16
5:17
5:20
5:21
5:22
Today's sea temperature in Plum Island Sound (south end) is
3.7° C
(Statistics for 06 Feb 1981-2005 – mean: 3.7 max: 4.7 min: 2.2°C)
Issued (local time): 12 pm Friday 06 Feb 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest