Unalaska Sea Conditions and Tide Table

Unalaska 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 —.

Days 1–4 Weather Summary

Mild with moderate rain (total 12mm) on Wed night. Becoming colder with a light covering of snow, mostly falling on Fri afternoon. Icy conditions (max 6°C on Thu night, min -4°C on Fri night). Winds increasing (calm on Thu night, severe gales from the N by Sat morning).

Days 5–7 Weather Summary

Mostly dry. Air temperatures will be below freezing (max 0°C on Mon morning, min -3°C on Sat night). Winds decreasing (gales from the N on Sat night, light winds from the NNW by Tue morning).

Days 8–10 Weather Summary

A dusting of snow on Thu night. Freezing level rising with drizzle on Thu night. Freeze-thaw conditions (max 4°C on Thu morning, min 0°C on Tue night). Winds increasing (calm on Wed morning, near gales from the WNW by Thu night).

Days 11–13 Weather Summary

Some drizzle, heaviest during Sun morning. Mild temperatures (max 8°C on Sat night, min 1°C on Fri night). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
Wave Height Map
High Tide
11:30AM1.23m
8:07PM0.85m
11:34AM1.23m
10:25PM0.78m
11:39AM1.25m
00:23AM0.77m
11:49AM1.30m
2:13AM0.84m
12:07PM1.37m
3:58AM0.93m
12:34PM1.45m
5:46AM1.02m
1:11PM1.51m
1:55PM1.53m
7:35AM1.15m
2:47PM1.52m
8:06AM1.19m
3:46PM1.45m
8:40AM1.21m
4:52PM1.34m
9:15AM1.24m
Low Tide
3:15AM0.16m
6:10PM0.84m
6:19PM0.65m
6:45PM0.44m
7:20PM0.21m
8:01PM-0.00m
8:46PM-0.18m
6:11AM1.02m
9:32PM-0.31m
10:24PM-0.37m
8:41AM1.15m
11:18PM-0.38m
10:25AM1.16m
00:12AM-0.34m
12:10PM1.11m
1:06AM-0.25m
1:52PM1.01m
Wave
height (m) 
direction
period (s) 
0.9
WNW
11
0.6
NW
9
0.5
NW
8
0.5
N
7
0.8
NNE
8
4
NNW
10
6.5
N
12
8
N
13
7.5
N
13
6.5
N
12
6
N
12
5.5
NNE
12
5.5
NNE
12
5
NNE
12
4.5
NNE
11
3.5
NNE
10
2.3
NNE
9
1.8
NNE
8
1.4
NNE
8
1.2
NNE
7
1.1
NNE
7
0.8
NNE
7
0.6
NNE
6
0.4
NNE
6
2.4
WNW
6
2.1
WNW
8
2.5
WNW
15
2.2
WNW
13
1.5
WNW
11
1.3
WNW
9
1
WNW
9
0.9
WNW
12
1.2
WNW
15
1.4
WNW
14
1.7
WNW
12
1.6
WNW
12
heavy rain
cloud
cloud
cloud
light rain
light snow
light snow
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
snow showers
part cloud
part cloud
part cloud
cloud
cloud
part cloud
light rain
cloud
cloud
cloud
cloud
heavy rain
cloudy
cloudy
cloudy
light rain
light snow
light snow
cloudy
cloudy
some clouds
some clouds
some clouds
clear
some clouds
cloudy
clear
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
some clouds
snow shwrs
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
light rain
cloudy
cloudy
cloudy
cloudy
 km/h
20
SE
20
S
20
S
10
S
5
NNW
50
N
70
N
80
N
75
N
70
N
60
N
60
N
60
N
50
N
50
N
25
N
15
N
15
N
5
NW
5
N
5
W
10
SSW
5
SW
5
SW
60
WNW
30
WNW
30
WNW
15
WSW
5
WSW
5
SW
10
SSW
10
WSW
10
W
0
ENE
10
S
15
SW
 mm 
11
1
1
1
max°C
4
5
5
6
6
0
-3
-3
-3
-2
-2
-2
-1
0
0
-1
-1
0
0
0
2
3
4
4
2
3
3
2
3
4
8
6
4
4
5
8
Moonrise
1:19
1:28
1:37
1:47
2:00
2:19
2:49
3:37
4:48
6:18
7:53
Moonset
11:12
12:33
1:56
3:21
4:51
6:26
8:03
9:31
10:39
11:24
11:51
12:09
Sunrise
10:23
10:23
10:23
10:23
10:23
10:23
10:23
10:23
10:22
10:22
10:22
10:22
Sunset
5:47
5:49
5:50
5:51
5:52
5:52
5:53
5:54
5:57
5:58
5:59
6:00
Today's sea temperature in Unalaska is
5.1° C
(Statistics for 24 Dec 1981-2005 – mean: 4.9 max: 5.9 min: 3.9°C)
Issued (local time): 8 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest