Portage Bay, Kupreanof Island Sea Conditions and Tide Table

Portage Bay, 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 09:14 PM.

Days 1–4 Weather Summary

Moderate rain (total 17mm), heaviest on Tue morning. Warm air temperatures (max 22°C on Mon afternoon, min 14°C on Tue night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 17mm), heaviest on Fri morning. Cool air temperatures (max 19°C on Thu afternoon, min 11°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 29mm), heaviest during Tue night. Very mild (max 19°C on Tue afternoon, min 11°C on Mon night). Wind will be generally light.

Days 11–13 Weather Summary

Heavy rain (total 23mm), heaviest during Wed night. Warm (max 21°C on Sat morning, min 12°C on Thu night). Wind will be generally light.

Mon
28
Tuesday
29
Wednesday
30
Thursday
31
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Sat
9
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
Wave Height Map
High Tide
4:19PM15.52ft
4:18AM14.53ft
4:52PM15.03ft
5:00AM13.16ft
5:26PM14.44ft
5:46AM11.75ft
6:03PM13.75ft
6:42AM10.5ft
6:47PM13.09ft
7:58AM9.58ft
7:43PM12.63ft
9:32AM9.42ft
8:51PM12.53ft
10:56AM10.04ft
10:02PM12.96ft
11:52AM11.02ft
11:02PM13.81ft
12:34PM12.14ft
11:51PM14.83ft
1:08PM13.26ft
00:34AM15.81ft
1:40PM14.31ft
1:13AM16.6ft
Low Tide
10:18PM1.9ft
10:31AM0.03ft
10:59PM2.26ft
11:06AM1.57ft
11:45PM2.76ft
11:43AM3.18ft
00:38AM3.22ft
12:27PM4.72ft
1:43AM3.51ft
1:25PM5.97ft
3:00AM3.38ft
2:43PM6.69ft
4:13AM2.66ft
4:02PM6.63ft
5:11AM1.57ft
5:05PM5.97ft
5:58AM0.33ft
5:55PM5.02ft
6:37AM-0.85ft
6:38PM3.9ft
7:13AM-1.87ft
7:17PM2.79ft
7:48AM-2.53ft
Wave
height (ft) 
direction
period (s) 
rain showers
light rain
mod rain
light rain
part cloud
part cloud
light rain
part cloud
light rain
rain showers
rain showers
rain showers
rain showers
clear
cloud
cloud
cloud
cloud
light rain
light rain
part cloud
light rain
part cloud
cloud
cloud
heavy rain
mod rain
mod rain
heavy rain
light rain
light rain
part cloud
clear
clear
part cloud
part cloud
rain shwrs
light rain
mod rain
light rain
some clouds
some clouds
light rain
some clouds
light rain
rain shwrs
rain shwrs
rain shwrs
rain shwrs
clear
cloudy
cloudy
cloudy
cloudy
light rain
light rain
some clouds
light rain
some clouds
cloudy
cloudy
heavy rain
mod rain
mod rain
heavy rain
light rain
light rain
some clouds
clear
clear
some clouds
some clouds
 mph
5
W
5
E
5
ESE
5
ESE
0
NW
0
NW
5
WNW
5
ENE
5
S
5
W
0
SSW
5
SSE
5
S
5
SE
0
ENE
5
WNW
5
SE
0
SE
5
SE
5
ESE
0
SW
0
W
5
SE
5
SE
5
ESE
5
E
5
SSE
5
ESE
5
ESE
5
ESE
5
E
0
NNW
5
NW
5
WNW
5
ESE
0
SE
 in 
0.1
0.08
0.2
0.1
0.08
0.04
0.2
0.2
0.2
0.1
0.1
0.1
0.08
0.5
0.4
0.2
0.5
0.1
0.08
max°F
72
59
59
61
59
66
64
59
66
66
57
61
63
57
63
64
57
55
55
55
61
61
57
64
66
57
57
57
55
55
59
57
64
64
59
70
Moonrise
9:51
11:11
12:31
1:51
3:13
4:37
5:59
7:11
8:04
8:36
8:54
9:05
9:12
Moonset
10:16
10:20
10:23
10:28
10:36
10:48
11:09
11:46
12:47
2:09
3:42
5:18
Sunrise
4:45
4:47
4:48
4:50
4:52
4:54
4:56
4:58
5:01
5:03
5:05
5:07
Sunset
9:14
9:12
9:09
9:07
9:06
9:04
9:01
8:59
8:57
8:54
8:52
8:50
Today's sea temperature in Portage Bay, Kupreanof Island is 54 °F (Statistics for 28 Jul 1981-2005 – mean: 55 max: 58 min: 53°F)
Issued (local time): 3 pm Monday 28 Jul 2025
Forecast update inUpdates in 1 hr 59 min 13 sUpdate imminent
Nearest