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 — and sunset is at 06:08 PM.

Days 1–4 Weather Summary

Mostly dry. Low air temperatures (max 5°C on Sat night, min 1°C on Tue morning). Winds decreasing (fresh winds from the ENE on Sat afternoon, calm by Mon night).

Days 5–7 Weather Summary

Light rain (total 9mm) at first, then becoming colder with a dusting of snow on Wed afternoon. Air temperatures will be slightly above freezing (max 4°C on Wed morning, min 1°C on Tue afternoon). Winds decreasing (near gales from the SE on Tue night, light winds from the W by Wed night).

Days 8–10 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Mild temperatures (max 5°C on Fri afternoon, min 2°C on Sun night). Winds decreasing (stormy winds from the ESE on Sat night, light winds from the E by Sun night).

Days 11–13 Weather Summary

Mostly dry. Temperatures will be slightly above freezing (max 3°C on Mon afternoon, min 1°C on Thu morning). Winds increasing (fresh winds from the ESE on Mon afternoon, near gales from the E by Tue night).

Sat
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
AM
Wave Height Map
High Tide
4:06PM1.46m
10:25AM1.27m
5:09PM1.39m
10:38AM1.26m
6:16PM1.27m
10:57AM1.25m
7:29PM1.13m
11:19AM1.25m
8:51PM0.98m
11:41AM1.26m
10:28PM0.84m
12:02PM1.27m
00:26AM0.76m
12:23PM1.27m
2:50AM0.77m
12:41PM1.28m
12:57PM1.28m
1:09PM1.28m
1:19PM1.28m
Low Tide
1:08AM-0.40m
12:43PM1.24m
1:57AM-0.32m
2:17PM1.15m
2:42AM-0.20m
3:42PM1.01m
3:25AM-0.03m
5:00PM0.85m
4:04AM0.16m
6:09PM0.67m
7:09PM0.50m
5:10AM0.56m
8:01PM0.33m
5:28AM0.74m
8:48PM0.20m
9:30PM0.09m
10:11PM0.01m
10:50PM-0.05m
Wave
height (m) 
direction
period (s) 
1.4
E
10
1.5
ESE
10
1.6
ENE
8
1.7
ENE
8
1.9
ENE
10
2.1
ENE
12
2
ENE
12
1.6
NE
11
1.2
NE
10
1
NE
9
1.5
SE
6
1.7
SE
7
1.3
SE
9
1.1
SSE
9
0.8
SSE
9
1
S
10
0.8
SSW
10
1.4
ESE
6
1.7
ESE
8
2.2
E
8
3
ESE
10
4
ESE
11
3.5
ESE
13
2.4
ESE
12
2
E
11
1.7
E
10
1.6
E
10
1.6
E
10
1.8
E
8
2.2
E
8
2.3
E
9
3
E
10
2.5
E
11
2.5
E
11
3
ENE
11
3.5
ENE
12
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
rain showers
light rain
light snow
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
part cloud
cloud
light rain
part cloud
part cloud
clear
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
rain shwrs
light rain
light snow
clear
clear
clear
clear
clear
cloudy
cloudy
cloudy
cloudy
light rain
some clouds
cloudy
light rain
some clouds
some clouds
clear
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
 km/h
35
ENE
35
NNE
30
NNE
35
NNE
35
N
30
N
25
N
10
NNE
15
SSE
25
SSE
55
SE
50
SSE
25
NW
30
WSW
20
SSW
35
SSW
25
SSE
50
ESE
45
SE
60
ESE
75
ESE
85
ESE
45
SSE
30
SSE
15
SE
25
ENE
25
E
35
E
45
ESE
55
ESE
50
E
60
E
50
E
45
ENE
50
NNE
55
NNE
 mm 
2
3
4
3
2
max°C
4
5
4
3
3
3
3
2
1
2
3
4
4
3
3
3
3
2
5
4
5
4
4
4
4
4
3
3
3
3
3
2
2
2
2
1
Moonrise
7:54
9:25
10:54
12:19
1:38
2:53
4:06
5:19
6:33
7:48
9:02
10:11
Moonset
1:41
2:04
2:20
2:31
2:41
2:50
2:59
3:09
3:22
3:39
4:02
Sunrise
10:21
10:22
10:22
10:23
10:25
10:26
10:26
10:27
10:29
10:30
10:30
10:30
Sunset
6:08
6:08
6:07
6:07
6:07
6:07
6:07
6:07
6:07
6:07
6:07
6:07
Today's sea temperature in Alcan Harbor, Shemya Island is
4.9° C
(Statistics for 06 Dec 1981-2005 – mean: 4.7 max: 5.4 min: 4.1°C)
Issued (local time): 1 pm Saturday 06 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest