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 10:15 PM.

Days 1–4 Weather Summary

Heavy rain (total 34mm), heaviest during Tue morning. Low air temperatures (max 5°C on Mon afternoon, min 3°C on Mon night). Winds increasing (light winds from the SSE on Mon afternoon, near gales from the S by Wed morning).

Days 5–7 Weather Summary

A dusting of snow giving way to moderate rain (total 19mm) heaviest on Fri afternoon. Low air temperatures (max 5°C on Thu morning, min 2°C on Thu night). Winds decreasing (near gales from the S on Wed afternoon, light winds from the W by Thu night).

Days 8–10 Weather Summary

Mostly dry. Temperatures will be slightly above freezing (max 4°C on Sat afternoon, min 1°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, light winds from the NW by Mon morning).

Days 11–13 Weather Summary

A dusting of new snow. Temperatures will be slightly above freezing (max 4°C on Wed afternoon, min 1°C on Wed night). Wind will be generally light.

Sun
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
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
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
7:27PM1.58m
8:23PM1.67m
9:11PM1.73m
9:55PM1.73m
7:21AM1.62m
10:35PM1.71m
8:37AM1.51m
11:13PM1.67m
9:54AM1.37m
11:48PM1.62m
11:16AM1.23m
00:19AM1.55m
12:43PM1.13m
00:45AM1.47m
2:16PM1.12m
1:06AM1.40m
3:53PM1.19m
1:19AM1.34m
5:23PM1.32m
1:24AM1.31m
6:35PM1.46m
1:11AM1.31m
7:27PM1.57m
Low Tide
10:50PM1.09m
11:47AM-0.51m
00:12AM1.10m
12:48PM-0.52m
1:27AM1.04m
1:47PM-0.49m
2:35AM0.93m
2:44PM-0.41m
3:40AM0.79m
3:38PM-0.28m
4:42AM0.61m
4:28PM-0.11m
5:42AM0.43m
5:17PM0.10m
6:38AM0.25m
6:05PM0.32m
7:30AM0.10m
6:55PM0.54m
8:16AM-0.02m
7:52PM0.74m
8:59AM-0.11m
9:08PM0.90m
9:38AM-0.15m
10:58PM1.00m
10:17AM-0.17m
10:57AM-0.18m
Wave
height (m) 
direction
period (s) 
cloud
cloud
cloud
cloud
rain showers
heavy rain
mod rain
light rain
light rain
light rain
light rain
rain showers
cloud
part cloud
light snow
rain showers
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
snow showers
part cloud
part cloud
part cloud
cloud
light rain
light snow
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
cloudy
cloudy
cloudy
cloudy
rain shwrs
heavy rain
mod rain
light rain
light rain
light rain
light rain
rain shwrs
cloudy
some clouds
light snow
rain shwrs
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
snow shwrs
some clouds
some clouds
some clouds
cloudy
light rain
light snow
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
 km/h
45
SW
35
SW
15
SW
15
SSW
15
ENE
30
E
35
SSE
40
S
45
S
50
S
45
SSW
20
SW
15
SW
10
NW
15
SSE
30
SSE
30
SW
15
WSW
15
WNW
20
WNW
25
W
25
WSW
10
NW
5
NW
15
SW
10
W
15
SW
15
SSW
5
S
5
WSW
15
SSW
5
ESE
10
NNW
5
SSE
10
E
20
E
25
E
25
NE
20
NE
20
NE
20
NNE
25
NNE
20
NNE
25
N
15
N
10
N
10
NNW
 mm 
5
17
6
3
3
5
4
1
9
2
5
4
max°C
4
4
4
5
5
5
5
4
4
4
4
5
5
4
2
4
3
4
4
2
3
2
2
2
3
2
3
3
3
3
4
2
3
3
3
3
4
3
3
4
3
4
4
3
4
4
4
Moonrise
9:07
10:07
11:26
12:55
2:24
3:49
5:10
6:29
7:45
9:02
10:19
11:37
12:53
2:02
Moonset
2:43
3:59
4:51
5:25
5:46
6:01
6:12
6:21
6:30
6:38
6:48
7:01
7:18
7:41
8:15
Sunrise
7:56
7:54
7:52
7:48
7:47
7:45
7:43
7:41
7:39
7:35
7:33
7:31
7:30
7:28
7:26
Sunset
10:15
10:16
10:17
10:20
10:22
10:23
10:25
10:27
10:29
10:30
10:32
10:35
10:36
10:37
10:39
10:42
Today's sea temperature in Usof Bay, Unalaska Island is
3.4° C
(Statistics for 19 Apr 1981-2005 – mean: 4.3 max: 5.1 min: 3.3°C)
Issued (local time): 3 pm Sunday 19 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest