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 05:45 PM.

Days 1–4 Weather Summary

Some drizzle, heaviest during Thu night. Icy conditions (max 4°C on Thu afternoon, min 0°C on Fri night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 4mm), mostly falling on Sun night. Low air temperatures (max 5°C on Mon afternoon, min 2°C on Tue afternoon). Winds decreasing (fresh winds from the W on Sun night, light winds from the WSW by Tue night).

Days 8–10 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Wed afternoon, min -3°C on Fri night). Winds increasing (light winds from the WSW on Wed afternoon, strong winds from the NNW by Fri afternoon).

Days 11–13 Weather Summary

Mild with light rain (total 6mm) on Mon afternoon. Becoming colder with a light covering of snow, mostly falling on Mon night. Freeze-thaw conditions (max 4°C on Mon morning, min -3°C on Mon night). Winds increasing (calm on Sat night, near gales from the N by Mon night).

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
1:29PM1.22m
10:22AM1.23m
1:18PM1.24m
10:39AM1.26m
10:53AM1.26m
11:06AM1.27m
11:17AM1.26m
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
Low Tide
11:36PM-0.04m
11:24AM1.23m
00:12AM-0.05m
00:49AM-0.05m
1:27AM-0.03m
2:05AM-0.00m
2:41AM0.06m
3:15AM0.16m
6:10PM0.84m
6:19PM0.65m
6:45PM0.44m
7:20PM0.21m
8:01PM-0.00m
Wave
height (m) 
direction
period (s) 
1.1
NNW
6
1.3
NW
7
1
NW
6
0.9
NNW
6
1.1
NNW
6
1
NNW
5
1
NNW
5
1
NNW
5
0.9
NNW
5
1.2
NW
6
1.3
WNW
7
2.5
WNW
10
2.5
WNW
11
2.3
WNW
11
1.8
WNW
11
1.6
WNW
11
1.5
WNW
12
1.4
WNW
13
1.4
WNW
12
1.5
WNW
7
2.5
NW
8
3.5
NW
10
3.5
NW
10
3.5
NNW
10
3.5
NNW
9
3
N
9
2.1
N
8
1.7
N
8
1.2
NNE
7
0.9
NNE
7
0.8
NW
9
0.6
NW
8
0.6
W
5
0.5
WSW
4
3.5
NW
9
4.5
NNW
10
cloud
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
light snow
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
mod snow
cloud
cloudy
rain shwrs
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
light rain
light rain
light rain
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
light rain
mod snow
cloudy
 km/h
20
W
20
NW
15
WNW
15
WNW
15
WNW
20
WNW
15
NW
15
WNW
20
W
20
W
15
WSW
30
W
25
W
20
W
15
W
15
W
5
WSW
10
WSW
10
WSW
20
NNW
35
NNW
40
NNW
40
NNW
45
NNW
45
NNW
30
NNW
20
NNW
15
N
0
W
5
SW
5
SW
20
SSW
25
S
15
S
45
N
55
N
 mm 
1
1
2
1
1
5
max°C
4
4
2
3
2
1
2
3
3
3
4
4
5
5
3
3
3
2
3
2
0
0
0
1
1
-1
-3
-2
-1
-1
0
3
4
4
0
-2
Moonrise
11:01
11:48
12:20
12:43
12:58
1:10
1:19
1:28
1:37
1:47
2:00
2:19
Moonset
4:07
4:53
5:55
7:09
8:29
9:50
11:12
12:33
1:56
3:21
4:51
6:26
Sunrise
10:21
10:21
10:22
10:22
10:22
10:22
10:23
10:23
10:23
10:23
10:23
10:23
Sunset
5:45
5:45
5:45
5:45
5:45
5:46
5:47
5:47
5:49
5:50
5:51
5:52
Today's sea temperature in Unalaska is
5.6° C
(Statistics for 18 Dec 1981-2005 – mean: 5.0 max: 5.8 min: 4.2°C)
Issued (local time): 2 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest