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 — and sunset is at 06:17 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Thu afternoon, min 5°C on Tue morning). Mainly fresh winds.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Thu night, min 9°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Moderate rain (total 16mm), heaviest on Sun night. Very mild (max 17°C on Mon afternoon, min 9°C on Tue morning). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 7mm), mostly falling on Fri night. Warm (max 23°C on Sat afternoon, min 7°C on Fri morning). Mainly fresh winds.

Days 14–17 Weather Summary

Moderate rain (total 16mm), heaviest on Sat night. Warm (max 20°C on Wed afternoon, min 2°C on Mon morning). Winds decreasing (fresh winds from the NW on Sun afternoon, calm by Mon morning).

Tuesday
6
Wednesday
7
Thursday
8
Friday
9
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wed
21
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
night
AM
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
7:42PM2.92m
8:22AM2.61m
8:46PM2.90m
9:22AM2.71m
9:46PM2.89m
10:16AM2.82m
10:41PM2.87m
11:05AM2.91m
11:30PM2.84m
11:49AM2.96m
00:16AM2.79m
12:31PM2.98m
00:59AM2.72m
1:11PM2.96m
1:41AM2.65m
1:51PM2.91m
2:22AM2.57m
2:32PM2.85m
3:05AM2.48m
3:15PM2.77m
3:49AM2.40m
4:02PM2.70m
4:38AM2.33m
4:52PM2.62m
5:30AM2.28m
5:47PM2.57m
6:25AM2.27m
6:43PM2.54m
Low Tide
2:14AM0.05m
2:34PM0.21m
3:13AM0.04m
3:35PM0.12m
4:07AM0.02m
4:31PM0.03m
4:56AM0.02m
5:23PM-0.03m
5:42AM0.05m
6:10PM-0.07m
6:25AM0.11m
6:54PM-0.06m
7:06AM0.18m
7:37PM-0.03m
7:47AM0.26m
8:19PM0.03m
8:27AM0.34m
9:02PM0.11m
9:10AM0.42m
9:47PM0.20m
9:56AM0.49m
10:35PM0.29m
10:45AM0.55m
11:27PM0.36m
11:39AM0.60m
00:21AM0.40m
12:36PM0.60m
Wave
Height (m)
Direction
Period (s)
0.9
E
8
0.9
NNE
5
0.7
E
8
0.3
E
8
0.3
E
8
0.4
SE
4
0.6
S
4
0.9
S
4
0.6
SSE
6
0.3
ESE
8
0.5
NW
3
0.4
WNW
3
0.3
ESE
8
0.4
NNW
3
0.4
NE
4
0.2
ESE
8
0.3
ESE
8
0.6
SSE
4
0.8
SE
5
0.7
SE
5
0.6
SE
7
1.3
ENE
6
1.2
ENE
7
0.9
ENE
7
0.6
E
7
0.6
S
3
0.6
SSE
3
0.8
S
4
0.8
SSW
4
0.7
NNW
4
1.3
NNE
5
1
NE
5
0.9
ENE
6
1
ESE
5
1.1
SE
6
0.9
SE
7
0.7
SE
7
1.2
NE
5
1.2
ENE
6
0.9
ESE
8
0.5
ESE
9
0.5
ESE
8
0.7
SE
6
0.5
ESE
8
0.3
ESE
8
0.5
SSW
3
0.6
SW
4
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
heavy rain
light rain
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
light rain
light rain
cloud
heavy rain
light rain
rain showers
clear
clear
cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
heavy rain
light rain
some clouds
some clouds
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
light rain
light rain
cloudy
heavy rain
light rain
rain shwrs
clear
clear
cloudy
cloudy
some clouds
some clouds
cloudy
clear
km/h
25
WNW
30
WNW
25
NW
15
W
15
SSW
20
SSW
20
SW
30
SSW
20
WNW
15
W
25
WNW
20
WNW
15
W
25
NW
15
NW
5
WNW
20
SSW
25
SSW
20
SE
15
N
5
NE
20
NNE
15
NE
15
SE
15
SSW
20
SSW
25
SSW
30
SW
30
WSW
25
NW
30
NNE
20
E
20
SE
25
SSE
25
SSW
15
SW
20
WNW
25
N
35
NW
15
NW
5
W
20
S
25
SSW
20
WSW
15
W
25
SW
25
W
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
1
—
—
—
—
—
—
—
—
—
—
—
—
—
4
1
—
12
5
1
—
—
—
—
—
—
—
—
max °C
14
9
14
11
12
18
15
19
23
18
15
17
15
11
14
13
13
18
14
14
17
16
9
9
10
12
16
16
20
22
14
8
10
15
20
23
14
9
10
5
5
9
8
12
16
13
17
Moonrise
—
2:04
—
—
3:18
—
—
4:30
—
—
5:40
—
—
6:49
—
—
7:58
—
—
9:07
—
—
10:14
—
—
11:18
—
—
12:16
—
—
1:07
—
—
1:50
—
—
2:25
—
—
2:54
—
—
—
3:18
—
—
Moonset
—
—
4:23
—
—
4:47
—
—
5:08
—
—
5:28
—
—
5:50
—
—
6:13
—
—
6:40
—
—
7:13
—
—
7:52
—
—
8:40
—
—
—
9:34
—
—
10:34
—
—
11:38
—
—
—
12:44
—
—
1:50
Sunrise
—
6:45
—
—
6:46
—
—
6:47
—
—
6:48
—
—
6:48
—
—
6:50
—
—
6:52
—
—
6:52
—
—
6:54
—
—
6:54
—
—
6:56
—
—
6:58
—
—
6:58
—
—
7:00
—
—
7:01
—
—
7:01
Sunset
6:17
—
6:15
—
—
6:14
—
—
6:13
—
—
6:10
—
—
6:08
—
—
6:07
—
—
6:06
—
—
6:04
—
—
6:02
—
—
6:00
—
—
5:59
—
—
5:58
—
—
5:55
—
—
5:54
—
—
5:52
—
—
Today's sea temperature in Plum Island Sound (south end) is
15.6°C
(Statistics for 05 Oct 1981-2005 – mean: 14.6 max: 16.2 min: 13.1°C)
Issued (local time): 7 pm Monday 05 Oct 2026
Forecast update inUpdates in  hr  min  sUpdate imminent 
Nearest locationNearest