Seavey Island, Portsmouth Harbor (sub) Sea Conditions and Tide Table

Seavey Island, Portsmouth Harbor (sub) 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 07:35 PM.

Days 1–4 Weather Summary

Light rain (total 4mm), mostly falling on Wed afternoon. Icy conditions (max 13°C on Wed afternoon, min -3°C on Wed night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Moderate rain (total 11mm), heaviest on Tue night. Very mild (max 18°C on Tue afternoon, min 10°C on Mon night). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 3mm), mostly falling on Fri morning. Very mild (max 18°C on Fri morning, min 10°C on Sat night). Wind will be generally light.

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sun
5
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
00:14AM2.61m
12:44PM2.40m
00:46AM2.64m
1:19PM2.37m
1:19AM2.65m
1:56PM2.33m
1:56AM2.65m
2:36PM2.30m
2:36AM2.64m
3:21PM2.26m
3:23AM2.62m
4:11PM2.23m
4:16AM2.59m
5:08PM2.24m
5:15AM2.57m
6:09PM2.29m
6:20AM2.57m
7:11PM2.39m
7:28AM2.60m
8:12PM2.54m
8:33AM2.65m
9:09PM2.72m
9:35AM2.72m
Low Tide
6:02PM0.27m
6:30AM0.07m
6:34PM0.29m
7:05AM0.05m
7:07PM0.31m
7:41AM0.04m
7:43PM0.34m
8:20AM0.05m
8:23PM0.38m
9:03AM0.07m
9:08PM0.41m
9:52AM0.10m
10:00PM0.43m
10:46AM0.12m
10:59PM0.44m
11:46AM0.12m
00:04AM0.40m
12:48PM0.10m
1:11AM0.30m
1:50PM0.05m
2:18AM0.16m
2:48PM-0.02m
3:20AM-0.02m
3:43PM-0.09m
Wave
height (m) 
direction
period (s) 
0.7
SE
4
1
ESE
10
1.1
ESE
10
1.1
ESE
9
0.6
ESE
9
0.7
ESE
8
0.5
E
8
0.3
ESE
8
0.5
ESE
8
0.4
ESE
8
0.3
ESE
8
0.4
SE
7
0.4
ESE
11
0.4
ESE
10
0.6
ESE
10
0.4
ESE
9
0.4
ESE
9
0.4
ESE
9
0.6
E
11
0.6
E
9
0.9
SE
4
0.6
E
9
0.5
E
9
0.6
E
9
0.6
E
9
0.4
ESE
9
0.8
SSE
4
0.7
E
9
0.7
E
8
0.6
E
8
0.5
E
8
0.4
ESE
8
0.5
ESE
8
0.4
ESE
8
0.3
ESE
8
0.4
ESE
8
part cloud
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
rain showers
clear
clear
clear
clear
clear
part cloud
light rain
cloud
clear
clear
cloud
part cloud
part cloud
part cloud
some clouds
light rain
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
rain shwrs
clear
clear
clear
clear
clear
some clouds
light rain
cloudy
clear
clear
cloudy
some clouds
some clouds
some clouds
 km/h
10
SSW
15
SSW
25
WNW
15
NW
5
NNW
10
SSE
10
NNW
5
ESE
20
SSE
5
WSW
10
ESE
15
SE
10
SW
10
SSW
15
SE
5
NNE
5
SE
10
SE
10
S
15
SSW
15
SE
15
W
15
NW
20
NW
5
NW
5
SSE
20
SSE
15
SW
15
NE
5
ESE
10
NNW
5
SE
15
SSE
10
NNW
5
E
15
SSE
 mm 
1.0
3
11
3
max°C
7
7
13
5
4
8
6
8
9
8
10
12
10
9
14
11
9
11
10
14
18
17
17
18
14
15
17
17
18
15
15
14
12
12
14
15
Moonrise
7:34
8:42
9:51
10:59
12:04
1:02
1:49
2:27
2:57
3:23
3:46
4:08
Moonset
5:51
6:16
6:47
7:27
8:19
9:21
10:32
11:49
1:07
2:25
3:43
5:02
Sunrise
5:46
5:43
5:43
5:41
5:39
5:37
5:37
5:35
5:33
5:33
5:31
5:30
Sunset
7:35
7:36
7:37
7:38
7:39
7:40
7:42
7:43
7:44
7:45
7:46
7:47
7:49
Today's sea temperature in Seavey Island, Portsmouth Harbor (sub) is 7.2 °C (Statistics for 23 Apr 1981-2005 – mean: 6.0 max: 7.0 min: 4.8°C)
Nearest