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 05:46 PM.

Days 1–4 Weather Summary

Moderate rain (total 15mm) heaviest on Wed night, then becoming colder with a dusting of snow on Fri morning. Icy conditions (max 6°C on Thu night, min 0°C on Fri morning). Winds increasing (calm on Thu afternoon, strong winds from the N by Fri morning).

Days 5–7 Weather Summary

A light covering of new snow, mostly falling on Fri afternoon. Icy conditions (max 2°C on Mon morning, min -4°C on Fri night). Winds decreasing (gales from the N on Sat afternoon, strong winds from the NNW by Mon morning).

Days 8–10 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Wed night, min -2°C on Wed morning). Mainly fresh winds.

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Fri morning, min -1°C on Sat night). Mainly fresh winds.

Tue
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sun
4
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
11:25AM1.25m
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
Low Tide
2:41AM0.06m
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
Wave
height (m) 
direction
period (s) 
1.6
WNW
11
1.3
WNW
12
1.2
WNW
12
1
WNW
10
0.9
W
5
0.9
ESE
5
0.6
NW
8
0.4
NNW
8
2.5
N
10
4.5
NNE
10
6
N
11
6.5
N
12
6
N
12
5.5
NNE
11
4.5
N
10
4.5
N
10
4.5
NNE
10
3.5
NNE
10
3
NNE
9
3
N
9
3
N
9
2.5
N
8
2.1
N
8
1.5
N
7
1.3
NNE
7
1.2
NE
8
1.1
NE
8
1
NNE
7
1.3
NW
6
1.6
NW
6
1.5
NNW
6
1.7
N
6
2.1
NNE
8
2.1
NNE
8
1.9
NNE
8
1.4
NNE
7
cloud
cloud
cloud
cloud
mod rain
light rain
part cloud
light rain
light snow
light snow
light snow
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
cloudy
cloudy
cloudy
cloudy
mod rain
light rain
some clouds
light rain
light snow
light snow
light snow
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
clear
clear
 km/h
5
WSW
10
S
10
SSE
15
SSE
20
SE
20
SSE
10
SW
5
SSW
35
NNE
50
N
65
N
65
N
70
N
65
N
55
N
60
N
50
N
40
NNW
35
NNW
30
NNW
30
NNW
25
NNW
20
NNW
15
NNW
15
NNW
15
WNW
20
WNW
15
W
25
WNW
20
NW
25
NNW
25
NNW
25
N
30
NNW
20
N
15
NNW
 mm 
10
2
2
1
max°C
1
1
2
3
5
5
5
6
3
-1
-3
-4
-4
-2
-2
-1
1
2
1
0
0
1
0
-1
0
2
2
3
3
4
3
1
0
1
0
-1
Moonrise
1:10
1:19
1:28
1:37
1:47
2:00
2:19
2:49
3:37
4:48
6:18
Moonset
9:50
11:12
12:33
1:56
3:21
4:51
6:26
8:03
9:31
10:39
11:24
11:51
Sunrise
10:22
10:23
10:23
10:23
10:23
10:23
10:23
10:23
10:23
10:22
10:22
10:22
Sunset
5:46
5:47
5:47
5:49
5:50
5:51
5:52
5:52
5:53
5:54
5:57
5:58
Today's sea temperature in Unalaska is
5.4° C
(Statistics for 23 Dec 1981-2005 – mean: 5.0 max: 5.6 min: 3.9°C)
Issued (local time): 2 pm Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest