Knappa, Knappa Slough, Columbia River Sea Conditions and Tide Table

Knappa, Knappa Slough, Columbia River 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 07:07 AM and sunset is at 07:00 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Thu morning. Cool air temperatures (max 17°C on Fri afternoon, min 8°C on Fri night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Mon morning. Cool air temperatures (max 19°C on Tue afternoon, min 8°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 27°C on Thu afternoon, min 12°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 14°C on Sun night). Wind will be generally light.

Thursday
28
Friday
29
Saturday
30
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
Monday
9
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
2:02PM2.46m
2:09AM2.51m
2:39PM2.59m
3:01AM2.46m
3:14PM2.68m
3:52AM2.36m
3:49PM2.70m
4:43AM2.22m
4:23PM2.65m
5:36AM2.06m
4:59PM2.55m
6:33AM1.90m
5:38PM2.40m
7:37AM1.78m
6:24PM2.22m
8:48AM1.73m
7:25PM2.04m
10:00AM1.76m
8:45PM1.93m
11:01AM1.85m
10:06PM1.92m
11:49AM1.98m
11:13PM1.99m
Low Tide
8:18AM-0.23m
8:38PM0.02m
8:59AM-0.16m
9:27PM-0.16m
9:38AM-0.03m
10:14PM-0.27m
10:16AM0.12m
11:01PM-0.32m
10:55AM0.30m
11:47PM-0.29m
11:34AM0.49m
00:36AM-0.19m
12:18PM0.67m
1:29AM-0.06m
1:10PM0.82m
2:32AM0.06m
2:16PM0.93m
3:42AM0.15m
3:36PM0.95m
4:51AM0.16m
4:53PM0.87m
5:50AM0.14m
5:57PM0.73m
Wave
height (m) 
direction
period (s) 
rain showers
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
clear
cloudy
light rain
light rain
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
 km/h
10
WSW
10
W
5
ENE
5
ENE
10
NNW
0
NE
5
WNW
10
WNW
0
ESE
5
WNW
10
W
5
SW
0
SSE
5
WSW
5
WSW
0
W
10
WNW
5
ENE
5
ENE
5
NNE
5
E
10
E
5
E
10
E
5
E
5
W
5
ESE
5
E
5
W
5
E
5
ESE
5
W
0
SE
0
WNW
5
W
5
E
 mm 
2.0
1.0
1.0
max°C
14
16
11
13
17
10
14
16
10
14
17
12
13
15
14
15
19
15
18
25
18
21
27
19
22
27
17
22
26
18
23
26
16
21
24
16
Moonrise
6:58
7:18
7:38
8:01
8:29
9:04
9:47
10:40
11:41
12:47
1:54
Moonset
6:01
7:24
8:46
10:07
11:28
12:45
1:55
2:54
3:42
4:19
4:48
5:11
Sunrise
7:07
7:09
7:09
7:11
7:13
7:13
7:16
7:16
7:18
7:20
7:20
7:22
Sunset
7:00
6:58
6:55
6:54
6:52
6:51
6:49
6:46
6:45
6:43
6:40
6:38
Today's sea temperature in Knappa, Knappa Slough, Columbia River is 18.1 °C (Statistics for 28 Sep 1981-2005 – mean: 14.0 max: 16.2 min: 12.4°C)
Nearest