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 — and sunset is at —.

Days 1–4 Weather Summary

Heavy rain (total 22mm), heaviest during Wed morning. Cool air temperatures (max 17°C on Fri afternoon, min 6°C on Fri morning). Winds decreasing (fresh winds from the SW on Wed morning, calm by Thu night).

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 20°C on Sun afternoon, min 7°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 24mm), heaviest during Thu morning. Very mild (max 17°C on Tue afternoon, min 8°C on Thu morning). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 3mm), mostly falling on Thu night. Very mild (max 14°C on Sat afternoon, min 4°C on Fri night). Wind will be generally light.

Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sun
8
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
Wave Height Map
High Tide
00:16AM2.41m
1:24PM2.29m
1:15AM2.49m
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
Low Tide
6:52PM0.50m
7:35AM-0.23m
7:47PM0.25m
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
Wave
height (m) 
direction
period (s) 
mod rain
heavy rain
rain showers
part cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
part cloud
part cloud
rain showers
cloud
part cloud
rain showers
heavy rain
light rain
rain showers
cloud
rain showers
clear
part cloud
clear
part cloud
cloud
cloud
mod rain
heavy rain
rain shwrs
some clouds
rain shwrs
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
cloudy
some clouds
some clouds
some clouds
rain shwrs
cloudy
some clouds
rain shwrs
heavy rain
light rain
rain shwrs
cloudy
rain shwrs
clear
some clouds
clear
some clouds
cloudy
cloudy
 km/h
15
SSE
30
WSW
15
W
5
SE
5
WSW
10
W
5
ENE
5
NE
10
NNW
0
NE
0
NNW
10
W
0
ENE
5
NE
10
NW
0
WSW
5
WSW
5
WSW
5
W
5
WSW
15
SW
10
WNW
5
W
10
WNW
5
SW
5
SSE
5
W
5
ESE
5
E
10
ENE
5
E
5
ESE
10
W
5
E
15
ESE
10
SE
 mm 
8
11
1.0
1.0
1.0
4
5
12
3
1.0
2.0
max°C
15
14
15
12
14
15
11
13
17
10
15
17
10
15
20
12
13
14
14
14
17
14
12
14
10
9
11
9
9
12
7
10
14
8
12
13
Moonrise
6:16
6:38
6:58
7:18
7:38
8:01
8:29
9:04
9:47
10:40
11:41
12:47
Moonset
4:36
6:01
7:24
8:46
10:07
11:28
12:45
1:55
2:54
3:42
4:19
4:48
Sunrise
7:07
7:07
7:09
7:09
7:11
7:13
7:13
7:16
7:16
7:18
7:20
7:20
Sunset
7:01
7:00
6:58
6:55
6:54
6:52
6:51
6:49
6:46
6:45
6:43
6:40
Today's sea temperature in Knappa, Knappa Slough, Columbia River is 18.2 °C (Statistics for 26 Sep 1981-2005 – mean: 14.0 max: 16.2 min: 12.4°C)
Nearest