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 08:11 AM and sunset is at 04:30 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm) heaviest on Fri night, then becoming colder with a dusting of snow on Sat afternoon. Icy conditions (max 12°C on Fri night, min -5°C on Sat night). Winds decreasing (gales from the S on Fri night, light winds from the W by Sun night).

Days 4–6 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max -2°C on Mon morning, min -6°C on Mon night). Winds decreasing (fresh winds from the NW on Mon morning, light winds from the SW by Tue night).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Thu night. Temperatures will be below freezing (max 0°C on Sat morning, min -5°C on Thu morning). Winds increasing (calm on Fri afternoon, strong winds from the WSW by Sat night).

Days 10–12 Weather Summary

A moderate fall of snow, heaviest on Sun night. Temperatures will be below freezing (max -2°C on Mon night, min -7°C on Wed morning). Winds decreasing (strong winds from the WSW on Mon afternoon, light winds from the W by Tue morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
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
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
5:45AM1.22m
5:45PM1.14m
6:57AM1.29m
6:46PM1.10m
Low Tide
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
11:54AM0.60m
00:13AM0.32m
1:16PM0.60m
1:15AM0.24m
Wave
height (m) 
direction
period (s) 
1.4
SW
8
1.1
SW
8
3
SSW
7
2.1
SW
7
3
WSW
10
1.8
W
10
0.8
W
8
1.4
SSW
6
0.6
SW
7
1.1
WSW
7
0.9
WNW
5
0.9
NW
4
0.9
WNW
5
0.6
W
6
0.4
WNW
5
0.6
E
3
0.4
ENE
3
0.2
NNE
2
0.6
NW
4
0.6
NW
3
0.4
WNW
5
0.3
W
6
0.3
W
5
0.5
E
3
0.7
S
3
1.4
WSW
6
1.6
W
8
1.4
W
8
1.2
W
7
1.2
W
7
2
W
8
1.8
W
8
1.2
W
8
0.6
W
8
1.2
W
6
1.2
WNW
5
part cloud
part cloud
heavy rain
light rain
light snow
part cloud
cloud
light rain
light snow
light snow
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
snow showers
cloud
part cloud
cloud
light snow
light snow
light snow
cloud
cloud
light snow
light snow
light snow
light snow
cloud
light snow
light snow
some clouds
some clouds
heavy rain
light rain
light snow
some clouds
cloudy
light rain
light snow
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
snow shwrs
cloudy
some clouds
cloudy
light snow
light snow
light snow
cloudy
cloudy
light snow
light snow
light snow
light snow
cloudy
light snow
light snow
 km/h
20
S
30
S
60
S
40
WSW
60
W
35
W
30
S
30
S
15
WSW
30
NW
25
NNW
25
NNW
30
NW
20
WNW
10
SSE
20
E
15
NE
10
NE
15
NW
25
NW
15
WNW
5
NW
15
ESE
20
E
20
SSE
35
WSW
40
WSW
35
WSW
30
W
30
WNW
50
WSW
40
WSW
30
WNW
15
W
25
W
30
NW
 mm 
11
2
1
1
max°C
6
8
12
5
-2
-3
0
3
3
-2
-4
-5
-6
-5
-5
-3
-2
-4
-3
-3
-4
-5
-5
-3
0
-1
-3
-4
-4
-4
-4
-3
-2
-3
-4
-4
Moonrise
8:21
9:13
9:54
10:25
10:50
11:09
11:26
11:41
11:55
12:11
12:31
12:55
Moonset
3:37
4:33
5:39
6:50
8:05
9:19
10:33
11:49
1:06
2:27
3:52
Sunrise
8:11
8:11
8:12
8:12
8:14
8:14
8:14
8:15
8:15
8:15
8:15
8:15
Sunset
4:30
4:30
4:30
4:30
4:31
4:31
4:32
4:34
4:35
4:35
4:36
4:37
Today's sea temperature in Port Harmon is
3.1° C
(Statistics for 19 Dec 1981-2005 – mean: 1.7 max: 2.8 min: 0.5°C)
Issued (local time): 7 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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