Alcan Harbor, Shemya Island Sea Conditions and Tide Table

Alcan Harbor, Shemya Island 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 08:02 AM and sunset is at 10:42 PM.

Days 1–3 Weather Summary

Mostly dry. Air temperatures will be slightly above freezing (max 2°C on Sat morning, min 1°C on Sat morning). Winds increasing (light winds from the N on Sat afternoon, near gales from the NE by Sun night).

Days 4–6 Weather Summary

Mostly dry. Air temperatures will be slightly above freezing (max 2°C on Tue morning, min 1°C on Thu afternoon). Winds decreasing (fresh winds from the WNW on Tue morning, light winds from the NNW by Thu night).

Days 7–9 Weather Summary

Some drizzle, heaviest during Sat night. Temperatures will be slightly above freezing (max 3°C on Fri night, min 2°C on Fri morning). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 15mm), heaviest on Mon afternoon. Mild temperatures (max 5°C on Mon afternoon, min 3°C on Mon morning). Winds decreasing (near gales from the SSE on Mon morning, calm by Wed night).

Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
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
7:10PM0.75m
8:35PM0.85m
9:44PM0.92m
10:42PM0.96m
6:24AM1.12m
11:32PM0.96m
7:17AM1.11m
00:17AM0.94m
8:13AM1.07m
00:58AM0.92m
9:13AM0.99m
1:36AM0.90m
10:18AM0.88m
2:11AM0.88m
11:35AM0.75m
2:43AM0.87m
1:13PM0.64m
3:10AM0.87m
3:12PM0.58m
3:33AM0.86m
Low Tide
11:31AM-0.07m
10:57PM0.64m
12:21PM-0.28m
11:50PM0.77m
1:12PM-0.45m
00:44AM0.86m
2:02PM-0.54m
1:37AM0.90m
2:53PM-0.57m
2:32AM0.90m
3:44PM-0.54m
3:33AM0.86m
4:35PM-0.45m
4:41AM0.80m
5:26PM-0.33m
5:58AM0.73m
6:16PM-0.19m
7:23AM0.62m
7:04PM-0.02m
8:43AM0.49m
7:52PM0.15m
9:49AM0.34m
8:41PM0.31m
Wave
height (m) 
direction
period (s) 
1.5
N
9
1.3
NNE
9
1
NNE
9
1.1
NNE
8
1.6
NE
6
2.3
NE
8
2.2
NE
8
2
NNE
8
1.8
NNE
8
1.6
NNE
8
1.6
NNE
8
1.3
N
8
1.3
N
8
1.2
NNW
8
0.9
N
7
0.8
N
7
0.8
N
8
0.8
NNE
8
0.6
NE
7
0.6
NE
7
0.5
E
7
0.5
E
7
0.5
SE
9
0.6
SSE
6
0.6
NW
6
0.5
SE
6
0.5
E
6
0.8
SSE
4
1.2
S
5
1.1
SW
6
0.7
SW
10
0.6
SW
12
0.6
SW
12
0.7
SW
9
0.8
S
6
0.6
S
7
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
clear
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
rain showers
part cloud
clear
part cloud
light rain
mod rain
cloud
part cloud
cloud
light rain
light rain
light rain
light rain
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
cloudy
clear
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
rain shwrs
some clouds
clear
some clouds
light rain
mod rain
cloudy
some clouds
cloudy
light rain
light rain
light rain
light rain
 km/h
25
NNW
15
NNW
15
E
35
E
50
ENE
55
NE
45
N
40
NNW
35
NNW
30
WNW
30
NW
30
NW
30
NW
25
NW
20
NW
25
NNW
20
NNW
25
NNW
15
NNW
15
NW
5
W
10
WNW
20
W
20
W
20
WNW
10
WNW
15
SSW
40
SSE
45
SSW
40
WSW
20
SW
15
SW
25
SSW
30
SSW
30
S
10
WSW
 mm 
1
5
6
1
1
1
1
max°C
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
3
3
3
3
3
3
5
4
4
4
4
5
5
5
Moonrise
7:24
7:39
7:59
8:28
9:13
10:17
11:35
1:00
2:22
3:41
4:56
6:08
Moonset
10:03
11:43
1:21
2:50
4:00
4:47
5:17
5:37
5:51
6:01
6:10
Sunrise
8:02
7:58
7:56
7:54
7:52
7:50
7:48
7:48
7:46
7:43
7:41
7:39
Sunset
10:42
10:43
10:45
10:46
10:49
10:50
10:52
10:53
10:55
10:57
10:59
11:00
Today's sea temperature in Alcan Harbor, Shemya Island is 3.9 °C (Statistics for 26 Apr 1981-2005 – mean: 3.7 max: 4.4 min: 2.7°C)
Issued (local time): 2 am Saturday 26 Apr 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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