Massacre Bay, Attu Island Sea Conditions and Tide Table

Massacre Bay, 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 10:37 AM and sunset is at 06:12 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 5°C on Mon morning, min 1°C on Sat night). Mainly strong winds.

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 4°C on Tue morning, min 0°C on Wed afternoon). Winds increasing (light winds from the E on Tue afternoon, near gales from the NNE by Wed night).

Days 7–9 Weather Summary

Moderate rain (total 17mm) heaviest on Sat night, then becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 4°C on Sat night, min 0°C on Fri morning). Winds decreasing (near gales from the ENE on Fri morning, light winds from the WSW by Sun afternoon).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Mon morning. Becoming milder with moderate rain (total 18mm) heaviest on Wed afternoon. Freeze-thaw conditions (max 4°C on Wed night, min 0°C on Mon afternoon). Winds decreasing (near gales from the ENE on Wed morning, moderate winds from the E by Thu morning).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
10:54AM1.27m
11:02AM1.27m
11:11AM1.26m
11:16AM1.24m
11:15AM1.21m
11:11AM1.19m
7:10PM0.91m
11:07AM1.18m
9:18PM0.79m
11:06AM1.20m
11:30PM0.72m
11:11AM1.26m
2:34AM0.74m
11:24AM1.35m
11:47AM1.43m
12:19PM1.50m
Low Tide
00:47AM-0.11m
1:21AM-0.10m
1:54AM-0.06m
2:24AM0.00m
2:52AM0.10m
5:29PM0.90m
5:49PM0.72m
6:23PM0.51m
7:04PM0.29m
7:50PM0.08m
8:40PM-0.09m
9:30PM-0.22m
Wave
height (m) 
direction
period (s) 
1.7
SW
10
1.6
SW
10
1.5
SW
8
1.9
SW
7
2.1
SW
8
2.1
WSW
9
2
WSW
9
2.1
SW
9
1.9
SW
10
1.5
SW
10
1.2
SW
12
1.3
SSW
13
1.8
S
12
1.7
S
12
1.7
ESE
10
1.6
NE
7
1.6
ENE
10
1.6
E
12
1.7
E
13
1.7
E
13
1.6
E
12
1.6
E
12
1.7
SSE
12
1.4
SW
12
1.2
SW
11
1.1
SW
11
1.1
SW
10
1.1
SW
10
1.1
SW
9
1.1
W
7
1.5
NE
5
1.4
NE
5
1.6
ENE
5
1.8
S
12
2
SSE
12
1.7
SSE
12
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
light rain
light rain
mod rain
light rain
cloud
light snow
light snow
light snow
light snow
cloud
cloud
cloud
cloud
light rain
heavy rain
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
clear
clear
some clouds
light rain
light rain
light rain
mod rain
light rain
cloudy
light snow
light snow
light snow
light snow
cloudy
cloudy
cloudy
cloudy
light rain
heavy rain
 km/h
30
SW
25
SW
35
SW
45
SSW
40
SW
35
SSW
40
SSW
45
SSW
35
S
20
SSE
10
E
25
N
55
NNE
55
NNE
60
NNE
55
NE
55
NE
50
ENE
50
ENE
45
E
40
E
40
SE
40
SE
30
SSE
15
S
5
WSW
20
N
25
N
35
N
40
NNE
50
NE
50
ENE
55
ENE
60
ENE
55
ENE
25
E
 mm 
1
3
1
9
3
4
13
max°C
3
3
2
3
4
4
5
5
5
4
4
3
2
0
1
1
0
0
0
1
2
3
3
4
4
4
2
1
1
1
0
1
2
3
2
4
Moonrise
12:02
12:35
12:59
1:16
1:29
1:40
1:49
2:00
2:11
2:26
2:48
3:20
Moonset
6:28
7:41
9:00
10:20
11:40
1:00
2:21
3:45
5:14
6:47
8:21
Sunrise
10:37
10:37
10:37
10:37
10:37
10:38
10:38
10:38
10:38
10:38
10:38
10:38
Sunset
6:12
6:13
6:13
6:14
6:15
6:15
6:15
6:16
6:17
6:19
6:20
6:21
Today's sea temperature in Massacre Bay, Attu Island is
4.9° C
(Statistics for 20 Dec 1981-2005 – mean: 4.1 max: 4.9 min: 3.6°C)
Issued (local time): 7 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest