Duncan Canal, Kupreanof Island Sea Conditions and Tide Table

Duncan Canal, Kupreanof 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 07:00 PM.

Days 1–4 Weather Summary

A light fall of snow, heaviest on Wed night. Turning milder with light rain (total 2mm) on Thu morning. Icy conditions (max 3°C on Sat morning, min -3°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

A heavy fall of snow, heaviest during Sat night. Becoming milder with light rain (total 3mm) on Sun morning. Icy conditions (max 3°C on Sat afternoon, min -3°C on Sun night). Winds decreasing (fresh winds from the ESE on Sat afternoon, calm by Sun afternoon).

Days 8–10 Weather Summary

A heavy fall of snow, heaviest during Wed night. Becoming milder with heavy rain (total 33mm) on Thu afternoon. Freeze-thaw conditions (max 3°C on Thu night, min -7°C on Tue night). Wind will be generally light.

Days 11–13 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Fri afternoon, min -6°C on Sun night). Wind will be generally light.

Wed
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
1
Thursday
2
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
1:28PM4.93m
1:53AM5.04m
2:08PM4.99m
2:25AM5.23m
2:48PM4.92m
2:58AM5.31m
3:31PM4.71m
3:34AM5.26m
4:18PM4.37m
4:15AM5.07m
5:10PM3.96m
5:02AM4.77m
6:15PM3.55m
6:01AM4.40m
7:38PM3.30m
7:20AM4.09m
9:13PM3.35m
8:54AM4.00m
10:30PM3.65m
10:17AM4.15m
11:24PM4.04m
11:21AM4.39m
00:06AM4.42m
12:13PM4.60m
00:43AM4.72m
12:57PM4.72m
1:16AM4.93m
1:37PM4.75m
Low Tide
7:37PM-0.32m
7:59AM-0.31m
8:11PM-0.27m
8:38AM-0.57m
8:45PM-0.10m
9:19AM-0.68m
9:22PM0.19m
10:03AM-0.61m
10:01PM0.56m
10:52AM-0.39m
10:45PM0.99m
11:50AM-0.07m
11:40PM1.42m
1:03PM0.23m
00:58AM1.75m
2:29PM0.37m
2:42AM1.80m
3:50PM0.29m
4:12AM1.49m
4:53PM0.11m
5:17AM1.03m
5:43PM-0.06m
6:06AM0.56m
6:24PM-0.15m
6:48AM0.16m
7:01PM-0.15m
7:25AM-0.14m
Wave
height (m) 
direction
period (s) 
light snow
light snow
snow showers
light snow
snow showers
part cloud
cloud
cloud
cloud
light snow
mod snow
light snow
rain showers
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
heavy snow
light snow
heavy rain
mod rain
cloud
cloud
light snow
light snow
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
light snow
light snow
snow shwrs
light snow
snow shwrs
some clouds
cloudy
cloudy
cloudy
light snow
mod snow
light snow
rain shwrs
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
heavy snow
light snow
heavy rain
mod rain
cloudy
cloudy
light snow
light snow
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
 km/h
15
SSW
15
SSW
15
S
15
S
5
SSE
5
E
10
ESE
15
E
20
E
30
ESE
5
SSW
30
SW
5
SE
10
ENE
10
E
5
NE
5
NNE
15
NNW
10
WNW
5
ENE
15
E
15
E
15
ESE
15
ESE
20
SE
20
ESE
10
E
5
SE
5
S
5
E
5
NNE
5
E
5
ENE
5
NNE
10
NNW
5
NNE
5
NNE
5
ENE
5
E
5
NE
5
NE
5
ENE
5
NE
10
NNE
5
ENE
5
NE
5
ENE
 mm 
2
2
1
7
16
10
max°C
2
0
2
2
-1
1
2
0
3
3
0
3
2
-2
0
0
-1
-1
-3
-4
-1
0
1
2
2
3
3
3
3
2
3
2
2
1
0
2
2
0
2
2
0
3
3
0
3
3
0
Moonrise
6:55
7:01
7:09
7:22
7:43
8:20
9:23
10:50
12:25
2:00
3:31
4:57
6:20
7:43
9:05
Moonset
7:08
8:41
10:18
11:59
1:40
3:12
4:21
5:02
5:25
5:38
5:46
5:52
5:57
6:02
6:06
Sunrise
6:56
6:54
6:52
6:48
6:47
6:43
6:41
6:39
6:35
6:33
6:30
6:28
6:24
6:22
6:20
Sunset
7:00
7:02
7:05
7:07
7:08
7:10
7:14
7:15
7:17
7:20
7:22
7:23
7:25
7:28
7:30
7:31
Today's sea temperature in Duncan Canal, Kupreanof Island is
4.4° C
(Statistics for 18 Mar 1981-2005 – mean: 6.1 max: 7.5 min: 5.1°C)
Issued (local time): 3 pm Wednesday 18 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest