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 09:07 PM.

	Days 1–4 Weather Summary Mostly dry. Very warm air temperatures (max 32°C on Sun afternoon, min 11°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm air temperatures (max 23°C on Thu afternoon, min 11°C on Wed night). Wind will be generally light.									Days 8–10 Weather Summary Mostly dry. Warm (max 20°C on Mon afternoon, min 11°C on Sun night). Wind will be generally light.									Days 11–13 Weather Summary Mostly dry. Warm (max 20°C on Fri afternoon, min 10°C on Thu night). Wind will be generally light.									Days 14–17 Weather Summary Some drizzle, heaviest during Mon night. Warm (max 31°C on Sun afternoon, min 10°C on Fri night). Wind will be generally light.
	Sun 14		Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29
	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 See all maps
High Tide	2:48PM2.06m	1:43AM2.88m		3:42PM2.11m	2:36AM2.86m		4:33PM2.16m	3:30AM2.78m			5:22PM2.20m			6:10PM2.24m	5:22AM2.47m		6:58PM2.29m	6:22AM2.24m		7:45PM2.33m	7:29AM2.02m		8:32PM2.38m	8:41AM1.84m		9:18PM2.42m	9:55AM1.74m		10:03PM2.45m		11:05AM1.73m	10:46PM2.47m		12:09PM1.77m	11:28PM2.47m		1:05PM1.84m	00:08AM2.47m		1:54PM1.90m	00:47AM2.47m		2:39PM1.95m
Low Tide		8:21PM0.78m	9:39AM-0.55m		9:17PM0.77m	10:29AM-0.55m		10:14PM0.74m		11:18AM-0.49m	11:12PM0.70m		12:06PM-0.38m	00:10AM0.65m		12:52PM-0.23m	1:11AM0.60m		1:38PM-0.05m	2:16AM0.54m		2:24PM0.14m	3:23AM0.44m		3:13PM0.33m	4:30AM0.31m		4:04PM0.50m		5:32AM0.16m	4:57PM0.64m		6:27AM0.02m		5:49PM0.75m	7:17AM-0.09m		6:40PM0.81m	8:01AM-0.17m		7:28PM0.85m	8:43AM-0.21m
Wave Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	clear	clear	clear	clear	clear	cloudy	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	clear	clear	clear	some clouds	some clouds	clear	some clouds	some clouds	clear	some clouds	clear	clear	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	light rain
km/h	NNW	SSE	W	W	W	WNW	WNW	WNW	W	W	WNW	NW	W	W	W	W	WSW	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	W	W	WNW	WNW	W	WNW	NNW	W	W	W	W	W	W	NNW	W	W	W	W	WSW
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1
max °C	32	25	25	27	18	15	17	13	16	18	15	19	23	18	19	19	14	17	18	14	17	18	15	18	20	15	16	17	13	15	17	14	16	18	15	18	20	16	21	24	19	27	31	20	17	20	16
Moonrise	—	—	5:27	—	—	6:45	—	—	8:10	—	—	9:33	—	—	10:52	—	—	12:07	—	—	1:18	—	—	2:27	—	—	—	3:35	—	—	4:43	—	—	5:51	—	—	6:57	—	—	7:58	—	—	8:52	—	—	—	9:37
Moonset	—	9:31	—	—	10:31	—	—	11:16	—	—	11:49	—	—	—	12:13	—	—	12:33	—	—	12:51	—	—	1:08	—	—	1:25	—	—	1:43	—	—	2:05	—	—	2:32	—	—	3:05	—	—	3:48	—	—	4:40	—	—
	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:24	—	—	5:24	—	—
	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:08	—	—	9:08	—	—	9:08	—	—	9:08	—	—	9:08	—	—	9:08	—	—	9:09	—	—	9:09	—	—	9:08	—	—	9:08
	Today's sea temperature in Knappa, Knappa Slough, Columbia River is 16.2° C (Statistics for 14 Jun 1981-2005 – mean: 13.4 max: 15.3 min: 12.1°C)