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 09:22 AM and sunset is at 09:45 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Mon morning. Air temperatures will be slightly above freezing (max 3°C on Mon afternoon, min 1°C on Sun morning). Winds decreasing (near gales from the SSE on Sun night, light winds from the SW by Tue night).

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 7°C on Fri night, min 2°C on Wed night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Sat afternoon, min 1°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the NNW by Mon night).

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 9mm) on Thu night. Freeze-thaw conditions (max 3°C on Wed afternoon, min 0°C on Tue morning). Winds decreasing (fresh winds from the NNW on Tue morning, calm by Thu afternoon).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
10:52AM1.06m
11:42AM1.04m
12:51PM0.98m
6:42AM0.76m
2:28PM0.90m
6:16AM0.73m
4:20PM0.83m
6:12AM0.75m
6:08PM0.81m
6:19AM0.81m
7:43PM0.84m
6:36AM0.90m
9:06PM0.87m
7:01AM1.00m
10:21PM0.91m
7:35AM1.09m
11:30PM0.92m
8:16AM1.15m
00:35AM0.91m
9:02AM1.17m
1:38AM0.89m
Low Tide
8:11PM-0.16m
9:04PM-0.13m
9:57PM-0.07m
9:08AM0.74m
10:48PM0.02m
10:53AM0.57m
11:36PM0.16m
12:02PM0.35m
00:23AM0.31m
12:59PM0.11m
1:06AM0.48m
1:52PM-0.12m
1:47AM0.62m
2:43PM-0.30m
2:27AM0.73m
3:35PM-0.43m
3:06AM0.80m
4:28PM-0.49m
3:47AM0.83m
5:22PM-0.48m
4:34AM0.83m
Wave
height (m) 
direction
period (s) 
1.4
ENE
8
1.7
ESE
6
2.4
ESE
7
1.9
ESE
7
1.1
E
8
1.1
ESE
8
1.2
WSW
11
1
W
11
0.7
WNW
9
0.6
WNW
8
0.6
WNW
8
0.6
W
9
0.5
W
6
0.5
SE
14
0.4
ESE
13
0.5
ESE
13
0.6
ESE
13
0.7
ESE
12
0.7
SE
10
0.6
SE
10
0.6
ESE
11
0.6
SE
10
0.5
SE
10
0.4
S
11
0.4
WNW
12
0.4
WNW
11
0.8
NW
7
1.7
NNW
6
1.6
NW
7
1.9
N
10
1.3
NNW
9
1
N
8
0.9
N
7
0.8
NNW
7
0.7
N
7
0.9
E
4
cloud
cloud
light snow
light snow
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
cloud
snow showers
part cloud
cloud
light snow
cloudy
cloudy
light snow
light snow
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
clear
clear
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
some clouds
cloudy
snow shwrs
some clouds
cloudy
light snow
 km/h
35
SSE
50
SSE
60
SSE
45
S
25
SSW
35
SW
30
WSW
15
SW
15
SW
10
SW
15
S
20
S
20
SSW
20
SSW
15
SW
20
SW
15
SW
20
WSW
5
SW
5
WSW
15
WNW
5
WNW
10
NW
5
WNW
5
W
5
WSW
30
WNW
35
NNW
30
NW
15
WNW
5
W
10
SSW
15
SW
10
W
0
WNW
35
SE
 mm 
8
max°C
1
2
2
2
3
2
2
3
3
3
3
3
4
5
5
4
4
7
7
8
8
8
7
7
6
6
4
1
1
2
2
3
2
2
2
3
Moonrise
7:32
8:01
8:21
8:36
8:48
8:59
9:10
9:23
9:39
10:02
10:36
11:27
Moonset
2:07
3:32
5:01
6:32
8:04
9:37
11:11
12:48
2:27
4:00
5:19
Sunrise
9:22
9:19
9:17
9:15
9:12
9:10
9:07
9:06
9:03
9:00
8:57
8:56
Sunset
9:45
9:46
9:49
9:50
9:52
9:53
9:55
9:58
9:59
10:00
10:02
10:05
Today's sea temperature in Chichagof Harbor, Attu Island is 3.2 °C (Statistics for 23 Mar 1981-2005 – mean: 3.1 max: 3.8 min: 2.4°C)
Issued (local time): 2 am Sunday 23 Mar 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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