Chichagof Harbor, Attu Island Sea Conditions and Tide Table

Chichagof Harbor, Attu 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 09:39 PM.

Days 1–4 Weather Summary

Some drizzle, heaviest during Thu afternoon. Cool air temperatures (max 13°C on Wed afternoon, min 9°C on Thu afternoon). Winds increasing (light winds from the SW on Wed night, near gales from the NW by Thu night).

Days 5–7 Weather Summary

Some drizzle, heaviest during Mon night. Cool air temperatures (max 12°C on Mon night, min 9°C on Sat afternoon). Winds increasing (calm on Sun afternoon, strong winds from the SSW by Mon night).

Days 8–10 Weather Summary

Moderate rain (total 14mm), heaviest on Tue night. Very mild (max 13°C on Tue night, min 9°C on Thu night). Winds decreasing (near gales from the SSE on Tue night, light winds from the W by Thu night).

Days 11–13 Weather Summary

Moderate rain (total 12mm), heaviest on Sun afternoon. Very mild (max 10°C on Fri night, min 9°C on Fri afternoon). Winds increasing (calm on Fri night, fresh winds from the E by Sun afternoon).

Days 14–17 Weather Summary

Heavy rain (total 31mm), heaviest during Tue afternoon. Very mild (max 13°C on Tue afternoon, min 7°C on Wed night). Winds increasing (calm on Mon afternoon, stormy winds from the W by Tue night).

Wed
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
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
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
12:31PM0.90m
9:27PM0.97m
1:37PM0.88m
9:55PM0.98m
2:50PM0.86m
10:26PM0.99m
4:21PM0.84m
11:03PM0.98m
11:47PM0.96m
6:24PM0.82m
6:23PM0.80m
6:26PM0.79m
6:29PM0.77m
6:31PM0.78m
6:53AM0.79m
6:34PM0.80m
8:14AM0.84m
6:41PM0.86m
9:27AM0.89m
6:53PM0.94m
10:35AM0.94m
7:14PM1.02m
11:40AM0.96m
Low Tide
4:41PM0.75m
5:29AM-0.16m
5:10PM0.80m
6:15AM-0.14m
5:31PM0.83m
7:04AM-0.11m
5:42PM0.84m
7:56AM-0.08m
8:49AM-0.03m
7:41PM0.82m
9:41AM0.03m
9:40PM0.77m
10:32AM0.10m
11:02PM0.66m
11:20AM0.19m
11:58PM0.53m
12:06PM0.30m
00:42AM0.37m
12:49PM0.43m
1:21AM0.20m
1:29PM0.57m
2:00AM0.02m
2:04PM0.70m
2:41AM-0.14m
2:34PM0.81m
3:25AM-0.27m
2:59PM0.89m
Wave
Height (m)
Direction
Period (s)
1.2
NNW
10
1
NNW
9
1
N
9
1.6
NW
8
3
NW
7
2.2
NNW
8
1.7
NNW
8
1.2
NNW
7
1.2
NNW
7
1.4
NNW
8
1.2
N
8
1
N
8
0.9
NNE
8
0.8
NNE
8
0.6
NE
8
0.6
NE
8
1
S
4
1.2
W
8
1.2
W
8
1.4
SE
7
1.7
W
7
1.9
W
8
2.2
WNW
12
2.2
WNW
12
2.3
WNW
12
1.7
WNW
10
2
NW
10
1.6
NW
9
1.2
NNW
8
1
N
8
1
N
8
0.8
N
7
0.7
N
7
0.8
N
6
1.2
ENE
5
0.9
ENE
6
0.8
ENE
6
0.8
ENE
7
0.9
ENE
6
2.1
ESE
7
5
WNW
9
2.5
NW
9
2.1
N
9
1.8
NE
9
1.3
NE
8
0.9
ENE
8
1
NW
6
clear
clear
clear
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
cloud
light rain
rain showers
part cloud
clear
clear
light rain
light rain
rain showers
part cloud
part cloud
cloud
part cloud
clear
part cloud
light rain
mod rain
rain showers
clear
part cloud
part cloud
light rain
mod rain
part cloud
part cloud
cloud
heavy rain
light rain
rain showers
cloud
clear
clear
clear
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
light rain
cloudy
light rain
rain shwrs
some clouds
clear
clear
light rain
light rain
rain shwrs
some clouds
some clouds
cloudy
some clouds
clear
some clouds
light rain
mod rain
rain shwrs
clear
some clouds
some clouds
light rain
mod rain
some clouds
some clouds
cloudy
heavy rain
light rain
rain shwrs
cloudy
km/h
30
W
15
SW
20
SW
40
W
55
NW
35
NW
20
WNW
20
SSW
25
WNW
20
NNE
15
NW
5
WNW
5
S
15
SW
15
SW
25
S
45
SSW
35
SSW
35
S
35
WSW
50
SW
55
SW
55
SW
50
SW
60
SW
20
WSW
15
WNW
15
WNW
10
SSE
30
W
10
NW
10
SSW
20
S
30
E
25
N
15
NW
5
WNW
10
SW
40
SSE
60
S
90
WNW
20
NW
10
ESE
45
SE
35
SSW
15
SW
25
WSW
 mm
1
1
2
6
2
3
1
1
9
2
5
6
13
4
3
max °C
13
13
12
11
10
9
11
11
10
10
10
9
10
11
11
11
12
12
11
13
11
11
11
10
10
10
9
9
10
10
9
10
9
9
10
9
10
10
9
13
11
8
8
12
12
11
11
Moonrise
4:31
5:37
6:31
7:11
7:39
7:59
8:15
8:27
8:37
8:48
8:58
9:11
9:27
9:50
10:23
11:14
Moonset
11:14
11:54
12:46
1:51
3:05
4:22
5:41
6:59
8:19
9:40
11:04
12:32
2:03
3:32
4:51
Sunrise
9:03
9:04
9:07
9:08
9:10
9:11
9:14
9:15
9:17
9:18
9:21
9:22
9:23
9:26
9:27
Sunset
9:39
9:37
9:35
9:32
9:30
9:28
9:24
9:22
9:21
9:17
9:15
9:13
9:10
9:08
9:06
9:04
Today's sea temperature in Chichagof Harbor, Attu Island is
10.3°C
(Statistics for 16 Sep 1981-2005 – mean: 9.3 max: 10.4 min: 7.9°C)
Issued (local time): 2 pm Wednesday 16 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest