Port Harmon Sea Conditions and Tide Table

Port Harmon 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 08:10 AM and sunset is at 04:29 PM.

Days 1–3 Weather Summary

A dusting of snow turning to light rain (total 4mm) on Fri night. Icy conditions (max 11°C on Fri night, min -3°C on Thu afternoon). Winds increasing (light winds from the SSE on Thu night, near gales from the SSE by Fri night).

Days 4–6 Weather Summary

Mild with light rain (total 9mm) on Sat morning. Becoming colder with a light covering of snow, mostly falling on Mon night. Icy conditions (max 12°C on Sat morning, min -4°C on Sat night). Winds decreasing (gales from the SSE on Sat morning, moderate winds from the WSW by Sun afternoon).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Tue morning. Temperatures will be below freezing (max -2°C on Tue morning, min -9°C on Thu night). Winds decreasing (near gales from the NNW on Tue morning, light winds from the NNE by Thu night).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Sat night. Temperatures will be below freezing (max 0°C on Sat afternoon, min -10°C on Fri morning). Winds increasing (light winds from the ESE on Fri morning, near gales from the E by Fri night).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
9:09AM1.36m
8:23PM1.06m
9:50AM1.39m
8:56PM1.07m
10:26AM1.41m
9:30PM1.09m
11:01AM1.41m
10:06PM1.11m
11:36AM1.41m
10:45PM1.13m
12:13PM1.41m
11:28PM1.15m
12:52PM1.40m
00:16AM1.16m
1:33PM1.39m
1:10AM1.16m
2:16PM1.36m
2:08AM1.16m
3:01PM1.32m
3:13AM1.15m
3:50PM1.27m
4:28AM1.17m
4:45PM1.20m
Low Tide
3:30PM0.67m
2:47AM0.33m
4:07PM0.68m
3:23AM0.30m
4:39PM0.69m
3:59AM0.27m
5:09PM0.70m
4:37AM0.25m
5:41PM0.70m
6:16PM0.70m
5:57AM0.25m
6:54PM0.68m
6:40AM0.28m
7:36PM0.65m
7:26AM0.32m
8:21PM0.60m
8:15AM0.38m
9:10PM0.54m
9:11AM0.46m
10:05PM0.47m
10:24AM0.54m
11:08PM0.40m
Wave
height (m) 
direction
period (s) 
1.9
SW
6
1.7
SW
8
1.7
WSW
8
1.6
W
8
1.5
W
9
0.8
W
7
0.8
WSW
7
1.3
SW
7
2.5
SSW
7
2.4
SSW
7
2.5
WSW
8
2.4
W
11
1.1
W
9
0.8
W
7
1
SSW
6
1.1
WSW
6
0.6
W
6
1.3
WNW
5
2.3
NNW
6
1.7
NNW
5
1.4
WNW
6
0.5
WNW
7
0.4
WNW
6
0.4
NW
4
0.7
NNW
4
0.7
NNW
4
0.4
NW
5
0.2
E
2
0.4
ESE
3
1.2
E
4
1.3
ESE
5
0.9
SE
4
1.5
SW
6
2
WSW
9
1.6
WSW
8
1.3
WSW
8
cloud
cloud
light snow
light snow
cloud
part cloud
part cloud
part cloud
light rain
mod rain
light snow
light snow
part cloud
cloud
part cloud
part cloud
cloud
light snow
light snow
light snow
snow showers
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
snow showers
part cloud
part cloud
snow showers
light snow
cloud
cloud
cloudy
cloudy
light snow
light snow
cloudy
some clouds
some clouds
some clouds
light rain
mod rain
light snow
light snow
some clouds
cloudy
some clouds
some clouds
cloudy
light snow
light snow
light snow
snow shwrs
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
cloudy
snow shwrs
some clouds
some clouds
snow shwrs
light snow
cloudy
cloudy
 km/h
35
SSW
30
SSW
40
WSW
35
WNW
35
WNW
15
SSE
20
SSE
30
S
55
S
40
S
55
WSW
50
WNW
20
WSW
20
SSE
25
SSE
30
W
25
WNW
40
NW
55
NNW
40
NW
35
NW
15
WNW
10
N
10
NE
20
NNW
20
NNW
10
NW
15
E
20
ESE
40
E
35
E
25
SE
30
SW
30
SSW
25
S
25
S
 mm 
4
9
max°C
2
4
4
0
-3
0
5
8
11
12
0
-4
-4
-2
2
0
-2
-2
-2
-2
-2
-2
-2
-6
-5
-5
-7
-7
-5
-3
-1
0
0
-3
-5
-4
Moonrise
6:13
7:20
8:21
9:13
9:54
10:25
10:50
11:09
11:26
11:41
11:55
12:11
Moonset
2:18
2:52
3:37
4:33
5:39
6:50
8:05
9:19
10:33
11:49
1:06
Sunrise
8:10
8:11
8:11
8:11
8:12
8:12
8:14
8:14
8:14
8:15
8:15
8:15
Sunset
4:29
4:29
4:30
4:30
4:30
4:30
4:31
4:31
4:32
4:34
4:35
4:35
Today's sea temperature in Port Harmon is
3.3° C
(Statistics for 17 Dec 1981-2005 – mean: 1.8 max: 2.8 min: 0.9°C)
Issued (local time): 1 am Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest