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

Some drizzle, heaviest during Thu night. Icy conditions (max 4°C on Thu afternoon, min -1°C on Wed night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 7mm), mostly falling on Sun night. Low air temperatures (max 5°C on Sun night, min 2°C on Sat night). Wind will be generally light.

Days 8–10 Weather Summary

Moderate rain (total 10mm) heaviest on Wed night, then becoming colder with a dusting of snow on Thu afternoon. Freeze-thaw conditions (max 6°C on Thu morning, min -2°C on Thu night). Winds increasing (calm on Thu morning, fresh winds from the ENE by Fri afternoon).

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Sat night, min 0°C on Fri night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
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
5:39AM1.91m
9:34AM1.91m
6:26AM1.98m
6:54AM2.01m
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
Low Tide
7:13PM-0.03m
7:26AM1.46m
7:49PM-0.03m
8:25PM-0.03m
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
Wave
height (m) 
direction
period (s) 
part cloud
cloud
cloud
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
light rain
mod rain
light snow
cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
some clouds
cloudy
cloudy
rain shwrs
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
light rain
light rain
light rain
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
light rain
mod rain
light snow
cloudy
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
 km/h
15
NW
20
NW
15
NW
15
NW
15
NW
15
NW
15
NW
15
NNW
15
NW
10
WNW
15
WNW
20
W
20
W
15
W
15
WNW
20
NW
10
NNW
5
NNW
10
WSW
15
S
10
SE
10
S
0
E
25
NNE
25
NNE
20
NE
30
ENE
20
ENE
20
ENE
15
ENE
15
E
10
ENE
10
ENE
5
ENE
5
N
5
N
 mm 
1
2
3
2
4
6
max°C
-1
1
4
4
4
3
1
1
2
3
4
4
5
5
5
4
4
3
2
3
4
5
6
2
0
-1
0
0
1
1
2
2
2
2
2
1
Moonrise
9:58
10:59
11:45
12:19
12:41
12:58
1:10
1:20
1:29
1:38
1:49
2:03
Moonset
4:11
4:57
5:59
7:12
8:32
9:53
11:14
12:35
1:57
3:22
4:51
Sunrise
10:18
10:19
10:19
10:21
10:21
10:22
10:22
10:22
10:22
10:22
10:22
10:22
Sunset
5:47
5:47
5:49
5:49
5:50
5:50
5:51
5:52
5:52
5:52
5:53
5:54
Today's sea temperature in Usof Bay, Unalaska Island is
5.9° C
(Statistics for 17 Dec 1981-2005 – mean: 5.0 max: 5.8 min: 4.2°C)
Issued (local time): 8 pm Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest