Seavey Island, Portsmouth Harbor Sea Conditions and Tide Table

Seavey Island, Portsmouth Harbor 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 06:58 AM and sunset is at 04:07 PM.

Days 1–3 Weather Summary

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

Days 4–6 Weather Summary

Light rain (total 6mm), mostly falling on Sun night. Icy conditions (max 14°C on Sun night, min 0°C on Fri morning). Winds increasing (calm on Sat morning, strong winds from the S by Sun night).

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 7°C on Wed morning, min 1°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 6°C on Sat morning, min -5°C on Sun morning). Winds decreasing (fresh winds from the WNW on Thu night, light winds from the SW by Fri night).

Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
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
5:18PM2.25m
6:00AM2.21m
6:16PM2.22m
6:52AM2.28m
7:13PM2.21m
7:40AM2.37m
8:05PM2.23m
8:23AM2.46m
8:52PM2.26m
9:03AM2.55m
9:35PM2.29m
9:41AM2.64m
10:17PM2.32m
10:21AM2.73m
11:00PM2.35m
11:03AM2.80m
11:45PM2.38m
11:49AM2.87m
00:31AM2.41m
12:36PM2.90m
1:19AM2.43m
1:26PM2.88m
2:10AM2.45m
Low Tide
11:03AM0.55m
11:33PM0.35m
12:00PM0.51m
00:24AM0.37m
12:57PM0.44m
1:15AM0.38m
1:51PM0.34m
2:03AM0.37m
2:39PM0.23m
2:46AM0.34m
3:23PM0.12m
3:27AM0.31m
4:05PM0.02m
4:07AM0.28m
4:47PM-0.08m
4:48AM0.24m
5:31PM-0.15m
5:33AM0.21m
6:17PM-0.20m
6:20AM0.18m
7:04PM-0.22m
7:10AM0.17m
7:54PM-0.20m
Wave
height (m) 
direction
period (s) 
0.7
E
7
0.7
ENE
6
0.5
E
6
0.5
ENE
4
0.5
E
4
0.4
ENE
5
0.4
ENE
6
0.3
ENE
6
0.3
ESE
9
0.3
ESE
9
0.3
E
11
0.2
E
10
0.2
E
10
0.1
E
9
0.1
E
17
0.3
SSE
3
1.1
SE
5
2.4
SE
8
1.2
SE
10
0.9
SE
10
0.7
SE
9
0.6
SE
9
0.7
SE
9
0.6
SE
8
0.6
SE
8
0.4
SE
8
0.4
SE
8
0.3
SE
7
0.4
SE
7
0.7
W
3
0.8
WNW
4
0.7
WNW
4
0.2
ESE
9
0.6
SSW
3
0.8
SSW
4
0.9
ESE
14
part cloud
cloud
cloud
cloud
part cloud
clear
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
clear
cloud
cloud
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
clear
some clouds
cloudy
cloudy
cloudy
some clouds
clear
cloudy
some clouds
clear
some clouds
some clouds
some clouds
some clouds
cloudy
clear
cloudy
cloudy
rain shwrs
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
clear
clear
clear
clear
some clouds
cloudy
clear
 km/h
15
NNE
0
NW
10
NE
10
NNE
10
N
10
NW
10
W
10
W
10
WNW
5
WNW
5
S
5
W
0
N
5
SSE
5
SSW
10
SSW
25
SSE
25
WNW
25
W
15
W
15
WNW
10
SW
15
SW
15
WSW
15
SW
10
WNW
10
NNW
10
SW
15
SW
25
WNW
30
WNW
20
WNW
10
SW
20
SW
20
SW
20
SW
 mm 
6
max°C
1
1
0
0
0
-2
0
1
-2
3
3
3
5
6
7
10
13
14
6
5
1
5
6
5
7
6
2
5
5
1
1
0
-1
6
6
3
Moonrise
12:10
1:12
2:16
3:22
4:32
5:45
6:59
8:09
9:10
9:59
10:37
Moonset
12:35
12:53
1:10
1:29
1:50
2:16
2:49
3:32
4:28
5:36
6:53
8:13
Sunrise
6:58
6:58
7:00
7:01
7:01
7:03
7:03
7:05
7:05
7:05
7:07
7:07
Sunset
4:07
4:07
4:07
4:07
4:07
4:07
4:07
4:07
4:07
4:07
4:07
4:07
Today's sea temperature in Seavey Island, Portsmouth Harbor is 8.9 °C (Statistics for 05 Dec 1981-2005 – mean: 7.9 max: 9.7 min: 6.4°C)
Nearest