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

Heavy rain (total 32mm), heaviest during Wed night. Later becoming colder with a dusting of snow on Fri afternoon. Icy conditions (max 6°C on Thu night, min -4°C on Fri night). Winds increasing (calm on Thu night, near gales from the N by Sat morning).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 3°C on Tue morning, min -3°C on Sat night). Winds decreasing (strong winds from the N on Sat night, light winds from the NNE by Tue afternoon).

Days 8–10 Weather Summary

Light rain (total 8mm), mostly falling on Thu night. Temperatures will be slightly above freezing (max 4°C on Wed night, min 2°C on Tue night). Winds increasing (calm on Wed morning, near gales from the WNW by Thu night).

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 6°C on Sat night, min 2°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
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
4:17AM1.84m
11:09AM2.41m
4:35AM1.90m
12:09PM2.30m
5:07AM1.95m
1:17PM2.12m
5:41AM1.99m
2:34PM1.87m
Low Tide
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
6:34PM-0.40m
7:29PM-0.41m
6:35AM1.43m
8:25PM-0.37m
8:26AM1.37m
9:19PM-0.28m
10:09AM1.23m
Wave
height (m) 
direction
period (s) 
heavy rain
light rain
light rain
cloud
light rain
light snow
snow showers
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
light rain
cloud
rain showers
rain showers
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
heavy rain
light rain
light rain
cloudy
light rain
light snow
snow shwrs
some clouds
clear
clear
clear
clear
clear
cloudy
some clouds
clear
clear
clear
clear
some clouds
cloudy
light rain
cloudy
rain shwrs
rain shwrs
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
 km/h
20
E
10
SE
10
SE
5
SSE
15
N
30
N
40
N
60
N
45
N
35
N
35
N
25
NNW
20
NNW
20
NNW
20
NNW
25
N
15
N
5
NNE
10
NW
0
NNE
10
WSW
15
SSW
10
WSW
15
WSW
55
WNW
20
NW
20
NW
15
WNW
10
WNW
10
NW
10
WSW
15
WNW
10
NW
10
E
10
WSW
10
SW
 mm 
25
5
1
1
1
1
6
max°C
5
5
5
6
6
1
-2
-3
-3
-2
-3
-2
-2
-2
0
2
3
3
3
2
2
4
4
4
2
3
2
2
3
4
6
6
5
5
5
5
Moonrise
1:20
1:29
1:38
1:49
2:03
2:22
2:52
3:41
4:53
6:22
7:56
Moonset
11:14
12:35
1:57
3:22
4:51
6:25
8:01
9:29
10:37
11:22
11:50
12:08
Sunrise
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:22
10:21
Sunset
5:52
5:52
5:52
5:53
5:54
5:55
5:57
5:58
6:00
6:00
6:01
6:02
Today's sea temperature in Usof Bay, Unalaska Island is
5.3° C
(Statistics for 24 Dec 1981-2005 – mean: 4.9 max: 5.8 min: 3.9°C)
Issued (local time): 8 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest