Usof Bay, Unalaska Island Sea Conditions and Tide Table

Usof Bay, Unalaska 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 —.

Days 1–4 Weather Summary

Mostly dry. Icy conditions (max 4°C on Sun afternoon, min 0°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 15mm) heaviest on Thu night, then becoming colder with a dusting of snow on Thu night. Icy conditions (max 4°C on Wed afternoon, min -5°C on Fri afternoon). Winds increasing (light winds from the E on Tue night, fresh winds from the NNE by Thu night).

Days 8–10 Weather Summary

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

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Tue night, min -5°C on Thu night). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
7:14AM2.01m
7:27AM2.00m
7:38AM1.97m
7:45AM1.92m
7:50AM1.87m
4:43PM1.29m
7:53AM1.86m
6:45PM1.17m
7:58AM1.90m
8:39PM1.15m
8:09AM1.99m
10:28PM1.24m
8:28AM2.13m
00:16AM1.40m
8:56AM2.27m
9:33AM2.39m
10:16AM2.44m
Low Tide
9:03PM-0.03m
9:41PM-0.02m
10:18PM-0.00m
10:53PM0.05m
11:25PM0.14m
2:05PM0.96m
11:57PM0.28m
2:21PM0.73m
00:26AM0.46m
2:50PM0.48m
00:55AM0.66m
3:26PM0.22m
1:23AM0.87m
4:07PM-0.02m
1:49AM1.06m
4:54PM-0.21m
5:41PM-0.34m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light snow
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
part cloud
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
light rain
light snow
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
cloudy
some clouds
clear
clear
some clouds
 km/h
15
NW
15
NW
20
WNW
25
WNW
30
WNW
20
NW
20
NW
15
NNW
10
N
5
ESE
10
SE
10
SE
15
E
15
ENE
25
ENE
25
NE
25
NNE
25
NNE
25
NNE
15
NNW
15
NNW
15
NW
15
NNW
20
NW
20
NNW
15
NNW
15
NW
10
NW
15
NW
10
WNW
10
NW
5
N
5
NW
15
NW
20
NNW
20
N
 mm 
5
10
max°C
1
3
4
4
3
3
3
3
3
2
3
4
4
4
4
3
-2
-5
-4
-3
-2
0
0
1
0
0
1
0
0
2
3
0
0
1
0
-1
Moonrise
12:19
12:41
12:58
1:10
1:20
1:29
1:38
1:49
2:03
2:22
2:52
3:41
Moonset
7:12
8:32
9:53
11:14
12:35
1:57
3:22
4:51
6:25
8:01
9:29
Sunrise
10:21
10:21
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
Sunset
5:49
5:50
5:50
5:51
5:52
5:52
5:52
5:53
5:54
5:55
5:57
5:58
Today's sea temperature in Usof Bay, Unalaska Island is
5.7° C
(Statistics for 20 Dec 1981-2005 – mean: 5.0 max: 5.7 min: 4.2°C)
Issued (local time): 8 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest