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 06:51 PM.

Days 1–4 Weather Summary

Moderate rain (total 18mm), heaviest on Thu night. Low air temperatures (max 6°C on Thu night, min 1°C on Sat night). Winds decreasing (severe gales from the SE on Fri afternoon, light winds from the SSW by Sat afternoon).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 4°C on Mon afternoon, min -2°C on Wed morning). Winds decreasing (near gales from the ENE on Tue afternoon, light winds from the NNW by Wed afternoon).

Days 8–10 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Fri night. Freeze-thaw conditions (max 4°C on Sat morning, min -1°C on Wed night). Winds increasing (calm on Thu night, strong winds from the SE by Sat afternoon).

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Sat night, min 0°C on Sun night). Winds decreasing (strong winds from the SE on Sat night, light winds from the NNE by Mon morning).

Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Sat
7
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
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
7:20PM0.89m
9:36AM1.13m
8:56PM0.81m
9:38AM1.18m
10:38PM0.77m
9:47AM1.25m
00:40AM0.76m
10:05AM1.34m
10:33AM1.42m
11:09AM1.47m
11:55AM1.48m
12:49PM1.45m
1:53PM1.38m
3:07PM1.27m
8:18AM1.05m
4:29PM1.15m
8:24AM1.07m
5:53PM1.03m
8:39AM1.09m
7:17PM0.93m
8:56AM1.11m
8:39PM0.86m
9:15AM1.12m
Low Tide
2:17AM0.29m
4:02PM0.59m
2:39AM0.45m
4:43PM0.39m
2:54AM0.61m
5:28PM0.19m
6:18PM0.02m
7:13PM-0.11m
8:10PM-0.20m
9:09PM-0.26m
10:06PM-0.27m
11:00PM-0.24m
11:50PM-0.17m
11:46AM0.97m
00:36AM-0.07m
1:12PM0.82m
1:17AM0.06m
2:18PM0.65m
1:56AM0.21m
3:12PM0.48m
2:31AM0.37m
Wave
height (m) 
direction
period (s) 
1.9
SE
10
3
SE
10
3.5
SE
13
2.1
SSE
12
1.4
SE
10
1.2
ESE
9
1.2
E
9
1.1
E
9
1.2
ENE
9
1
NE
9
1.4
NE
9
1.8
ENE
9
1.9
E
12
3
NNE
12
3
NNE
11
2.5
NE
10
2.4
NE
10
2.4
NNE
11
2
NNE
11
1.8
NNE
11
1.6
NNE
11
1.2
NNE
9
0.9
NNE
9
1.1
NE
6
1.3
E
6
1.6
ESE
8
1.5
ESE
8
1.4
SE
8
1.3
SE
11
1.1
SE
10
0.9
ESE
9
0.9
ENE
8
1
NE
9
1.1
NE
8
1.2
NNE
10
1.2
NNE
9
1.3
NNE
9
1.7
NNE
9
1.7
NNE
9
2.3
NNE
9
3.5
NE
11
3.5
NE
11
4.5
NE
12
5
NE
13
4.5
NE
13
3.5
NE
12
3
NNE
11
heavy rain
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light snow
part cloud
cloud
part cloud
part cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
light snow
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
heavy rain
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
light snow
some clouds
cloudy
some clouds
some clouds
cloudy
light rain
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
cloudy
light snow
light rain
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
 km/h
50
SE
75
SE
80
SSE
50
SSE
20
SSW
15
WSW
30
WNW
30
WNW
30
NW
20
NE
35
E
40
E
35
ENE
50
ENE
55
ENE
40
NE
30
NNE
15
NNW
35
WSW
30
W
25
W
5
S
20
ESE
35
E
35
SE
45
SE
40
SE
35
SE
30
SE
25
SE
20
ESE
15
NNE
20
N
20
NNE
20
N
20
N
30
N
35
N
30
NNE
50
NE
55
NE
60
NE
65
NE
65
NE
65
NE
55
NE
50
NE
 mm 
18
5
1
max°C
6
6
4
3
3
2
2
2
2
3
3
4
4
3
2
1
-1
-1
0
0
0
0
1
2
3
4
3
3
3
3
2
1
0
1
2
2
2
2
2
3
2
1
0
0
0
0
-1
Moonrise
12:04
12:15
12:29
12:47
1:13
1:54
2:55
4:15
5:46
7:18
8:46
10:08
11:28
12:44
2:00
Moonset
12:06
1:29
2:54
4:23
5:54
7:22
8:35
9:28
10:03
10:25
10:41
10:53
11:03
11:13
11:22
11:34
Sunrise
10:18
10:17
10:15
10:14
10:12
10:11
10:10
10:07
10:06
10:04
10:03
10:02
10:00
9:57
9:56
9:53
Sunset
6:51
6:52
6:54
6:55
6:58
7:00
7:01
7:04
7:06
7:07
7:08
7:10
7:13
7:15
7:16
7:19
Today's sea temperature in Alcan Harbor, Shemya Island is
3.9° C
(Statistics for 22 Jan 1981-2005 – mean: 3.4 max: 4.1 min: 2.7°C)
Issued (local time): 7 pm Thursday 22 Jan 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest