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 05:22 AM and sunset is at 09:07 PM.

	Days 1–3 Weather Summary Mostly dry. Very warm air temperatures (max 31°C on Sun afternoon, min 10°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm air temperatures (max 23°C on Thu afternoon, min 10°C on Wed night). Wind will be generally light.									Days 7–9 Weather Summary Mostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Sat night). Wind will be generally light.									Days 10–12 Weather Summary Light rain (total 2mm), mostly falling on Thu morning. Very mild (max 18°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.									Days 13–16 Weather Summary Mostly dry. Very mild (max 18°C on Fri afternoon, min 10°C on Sun night). Wind will be generally light.
	Sunday 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			Mon 29
	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	AM	PM
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	8:47AM-0.48m		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	some clouds	clear	clear	cloudy	clear	some clouds	some clouds	clear	clear	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	clear	some clouds	some clouds	clear	some clouds	cloudy	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	cloudy	cloudy	rain shwrs	some clouds	some clouds	some clouds	clear	some clouds	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds
km/h	E	NW	S	W	W	W	WNW	WNW	WNW	W	W	WNW	W	W	W	W	W	WSW	WSW	W	WNW	W	W	WNW	W	W	W	WNW	WNW	NW	WNW	WNW	W	W	W	SSW	WNW	WNW	W	W	W	NNE	WSW	W	SW	WNW	W
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	29	31	24	24	26	17	15	16	13	16	18	14	21	23	17	18	18	13	15	17	13	16	17	14	15	16	14	17	18	14	14	17	14	15	17	15	16	18	14	15	18	14	17	16	14	15	17
Moonrise	4:22	—	—	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	—	—	—
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	—	—	5:22	—	—	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)