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 06:26 AM and sunset is at 08:01 PM.

	Days 1–3 Weather Summary Mostly dry. Cool air temperatures (max 18°C on Sat afternoon, min 3°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Tue night. Warm air temperatures (max 22°C on Mon afternoon, min 9°C on Sun night). Wind will be generally light.									Days 7–9 Weather Summary Mostly dry. Very mild (max 14°C on Wed afternoon, min 2°C on Fri night). Wind will be generally light.									Days 10–12 Weather Summary Mostly dry. Warm (max 21°C on Mon afternoon, min 5°C on Sat morning). Wind will be generally light.
	Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Fri 1
	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		2:11PM2.30m	2:04AM2.70m		3:02PM2.30m	2:39AM2.80m		3:53PM2.25m	3:15AM2.85m		4:46PM2.18m	3:56AM2.84m			5:41PM2.08m			6:41PM1.99m	5:32AM2.60m		7:47PM1.94m	6:36AM2.40m		8:55PM1.96m	7:55AM2.22m		10:00PM2.05m	9:22AM2.11m		10:56PM2.20m	10:41AM2.09m		11:42PM2.35m		11:47AM2.11m	00:22AM2.48m		12:44PM2.14m	00:58AM2.57m		1:34PM2.15m	1:30AM2.61m		2:21PM2.15m
Low Tide	8:33AM-0.02m		8:32PM0.32m	9:18AM-0.21m		9:11PM0.41m	10:02AM-0.34m		9:51PM0.51m	10:49AM-0.39m		10:34PM0.61m		11:38AM-0.37m	11:21PM0.71m		12:31PM-0.28m	00:15AM0.81m		1:32PM-0.16m	1:21AM0.88m		2:38PM-0.03m	2:40AM0.89m		3:48PM0.06m	4:03AM0.80m		4:52PM0.11m		5:19AM0.62m		5:48PM0.15m	6:23AM0.40m		6:35PM0.20m	7:15AM0.19m		7:17PM0.27m	8:02AM0.02m		7:55PM0.37m	8:43AM-0.10m
Wave height (m) direction period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	clear	clear	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	clear	some clouds	some clouds	some clouds	some clouds	rain shwrs	cloudy	cloudy	cloudy	some clouds	some clouds	some clouds	some clouds	clear	clear	some clouds	some clouds	some clouds	cloudy	cloudy	some clouds	some clouds	some clouds	clear	clear	some clouds	some clouds	some clouds	cloudy	rain shwrs	light rain	some clouds	clear	clear	some clouds
km/h	WNW	W	WNW	N	WNW	E	ESE	WSW	ESE	E	WSW	SW	ESE	W	WSW	NW	W	WSW	WSW	WSW	WNW	WNW	WNW	WNW	WNW	WNW	ESE	ESE	W	ESE	ESE	NE	ENE	E	N	E	W	W	WSW	SW	SW	W	W	W	NE	NW	NW
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	—	—	—	—
max°C	8	10	8	9	13	10	13	18	11	16	21	11	19	22	13	16	19	13	12	14	10	9	10	7	9	10	7	10	12	8	9	11	10	16	21	16	18	17	12	14	14	10	10	11	9	12	16
Moonrise	5:47	—	—	6:09	—	—	6:35	—	—	7:10	—	—	7:57	—	—	8:58	—	—	10:10	—	—	11:29	—	—	12:48	—	—	2:04	—	—	—	3:17	—	—	4:27	—	—	5:36	—	—	6:44	—	—	7:52	—	—	—
Moonset	—	7:38	—	—	—	9:02	—	—	10:28	—	—	11:52	—	—	—	1:06	—	—	2:05	—	—	2:49	—	—	3:21	—	—	3:46	—	—	4:06	—	—	4:23	—	—	4:39	—	—	4:55	—	—	5:13	—	—	5:33	—
	6:26	—	—	6:24	—	—	6:22	—	—	6:20	—	—	6:18	—	—	6:16	—	—	6:16	—	—	6:13	—	—	6:11	—	—	6:11	—	—	6:09	—	—	6:07	—	—	6:05	—	—	6:03	—	—	6:01	—	—	6:01	—
	—	8:01	—	—	8:02	—	—	8:05	—	—	8:06	—	—	8:07	—	—	8:08	—	—	8:09	—	—	8:10	—	—	8:13	—	—	8:14	—	—	8:15	—	—	8:16	—	—	8:17	—	—	8:19	—	—	8:21	—	—	8:22
	Today's sea temperature in Knappa, Knappa Slough, Columbia River is 11.9° C (Statistics for 16 Apr 1981-2005 – mean: 10.4 max: 11.8 min: 9.4°C)