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 06:13 AM and sunset is at 07:37 PM.

Days 1–3 Weather Summary

Heavy rain (total 20mm), heaviest during Sat night. Cool air temperatures (max 11°C on Fri morning, min 3°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 16mm), heaviest on Tue morning. Cool air temperatures (max 10°C on Mon morning, min 2°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Thu afternoon. Mild temperatures (max 8°C on Sat morning, min 2°C on Fri night). Winds decreasing (fresh winds from the ESE on Thu afternoon, calm by Fri afternoon).

Days 10–12 Weather Summary

Mostly dry. Very mild (max 14°C on Mon afternoon, min 2°C on Sun night). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
7:25PM11.06ft
7:06AM13.12ft
8:56PM10.96ft
8:38AM12.47ft
10:14PM11.65ft
10:02AM12.66ft
11:09PM12.63ft
11:06AM13.22ft
11:50PM13.62ft
11:56AM13.81ft
00:24AM14.44ft
12:37PM14.24ft
00:53AM15.09ft
1:14PM14.5ft
1:20AM15.52ft
1:49PM14.53ft
1:47AM15.75ft
2:22PM14.31ft
2:13AM15.75ft
2:55PM13.91ft
2:40AM15.55ft
3:28PM13.29ft
3:08AM15.16ft
Low Tide
12:48PM0.59ft
00:48AM5.74ft
2:10PM1.44ft
2:29AM6.07ft
3:31PM1.57ft
4:01AM5.32ft
4:36PM1.31ft
5:05AM4.04ft
5:25PM0.95ft
5:52AM2.76ft
6:05PM0.72ft
6:29AM1.57ft
6:39PM0.69ft
7:03AM0.56ft
7:10PM0.85ft
7:34AM-0.2ft
7:39PM1.15ft
8:04AM-0.66ft
8:08PM1.64ft
8:34AM-0.85ft
8:36PM2.26ft
9:06AM-0.75ft
9:06PM2.99ft
Wave
height (ft) 
direction
period (s) 
cloud
light rain
light rain
light rain
light rain
heavy rain
part cloud
cloud
part cloud
cloud
cloud
light rain
mod rain
light rain
rain showers
cloud
cloud
part cloud
light rain
light rain
rain showers
part cloud
rain showers
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
light rain
light rain
light rain
light rain
heavy rain
some clouds
cloudy
some clouds
cloudy
cloudy
light rain
mod rain
light rain
rain shwrs
cloudy
cloudy
some clouds
light rain
light rain
rain shwrs
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
 mph
5
ESE
10
SSE
5
E
5
ESE
10
ESE
10
ESE
5
E
5
SSE
5
ENE
5
E
5
ESE
5
E
5
ESE
5
ESE
5
ESE
5
E
10
ESE
5
NNE
5
NE
20
ESE
5
ESE
5
ESE
5
S
5
E
5
N
5
W
5
NNW
5
NNW
5
NNW
5
N
5
N
5
NNE
5
N
5
NNW
5
SSW
0
NNE
 in 
0.04
0.1
0.1
0.08
0.4
0.04
0.2
0.1
0.2
0.04
0.1
0.08
0.04
0.04
max°F
52
50
46
48
48
46
46
48
43
50
48
43
41
41
39
45
46
43
43
45
39
45
43
39
46
46
43
48
52
41
54
57
45
52
54
48
Moonrise
9:11
10:37
12:08
1:36
2:59
4:19
5:36
6:53
8:11
9:31
10:53
Moonset
4:12
4:46
5:04
5:15
5:22
5:26
5:30
5:33
5:37
5:41
5:47
5:56
Sunrise
6:13
6:11
6:09
6:05
6:03
6:01
5:58
5:56
5:52
5:50
5:48
5:46
Sunset
7:37
7:38
7:40
7:43
7:45
7:46
7:49
7:51
7:52
7:54
7:57
8:00
Today's sea temperature in Duncan Canal, Kupreanof Island is 43 °F (Statistics for 04 Apr 1981-2005 – mean: 44 max: 46 min: 42°F)
Issued (local time): 9 am Friday 04 Apr 2025
Forecast update inUpdates in 1 hr 36 min 29 sUpdate imminent
Nearest