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 07:56 AM and sunset is at 04:39 PM.
Days 1–3 Weather SummaryHeavy rain (total 37mm), heaviest during Sat night. Cool air temperatures (max 10°C on Fri morning, min 6°C on Fri afternoon). Wind will be generally light. | Days 4–6 Weather SummarySome drizzle, heaviest during Sun afternoon. Cool air temperatures (max 10°C on Sun morning, min 3°C on Mon night). Wind will be generally light. | Days 7–9 Weather SummaryLight rain (total 9mm), mostly falling on Fri afternoon. Very mild (max 10°C on Wed morning, min 3°C on Thu night). Wind will be generally light. | Days 10–12 Weather SummaryMostly dry. Freeze-thaw conditions (max 8°C on Sat morning, min 0°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||||||||||||
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 | 2:54PM2.78m | 4:35AM2.38m | 3:42PM2.68m | 5:13AM2.46m | 4:35PM2.50m | 5:52AM2.53m | 5:37PM2.28m | 6:35AM2.61m | 6:51PM2.05m | 7:22AM2.68m | 8:16PM1.90m | 8:14AM2.74m | 9:42PM1.86m | 9:09AM2.79m | 10:58PM1.93m | 10:06AM2.83m | 00:04AM2.04m | 11:02AM2.85m | 1:00AM2.15m | 11:56AM2.85m | 1:50AM2.25m | 12:48PM2.83m | 2:35AM2.32m | |||||||||||||
Low Tide | 9:45AM0.90m | 10:29PM-0.16m | 10:33AM0.83m | 11:06PM-0.07m | 11:26AM0.75m | 11:45PM0.07m | 12:25PM0.66m | 00:27AM0.25m | 1:31PM0.56m | 1:15AM0.46m | 2:44PM0.42m | 2:11AM0.67m | 3:58PM0.25m | 3:15AM0.85m | 5:07PM0.06m | 4:24AM0.96m | 6:08PM-0.09m | 5:31AM1.00m | 7:03PM-0.20m | 7:53PM-0.26m | 7:30AM0.94m | 8:37PM-0.26m | ||||||||||||||
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cloudy | cloudy | light rain | mod rain | rain shwrs | cloudy | light rain | heavy rain | heavy rain | cloudy | light rain | some clouds | some clouds | clear | clear | some clouds | cloudy | some clouds | clear | some clouds | some clouds | some clouds | some clouds | some clouds | light rain | rain shwrs | cloudy | cloudy | cloudy | some clouds | clear | clear | clear | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | 4 | 6 | 1.0 | — | 4 | 11 | 11 | — | 1.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 6 | — | — | — | — | — | — | — | — | — | — | |
max°C | 9 | 8 | 7 | 10 | 9 | 7 | 9 | 8 | 10 | 10 | 10 | 8 | 9 | 8 | 5 | 7 | 7 | 7 | 10 | 9 | 5 | 9 | 9 | 5 | 7 | 9 | 7 | 8 | 8 | 6 | 7 | 8 | 3 | 6 | 6 | 1 |
Moonrise | 10:13 | — | — | 10:35 | — | — | 10:55 | — | — | 11:13 | — | — | 11:31 | — | — | 11:50 | — | — | 12:14 | — | — | 12:44 | — | — | 1:23 | — | — | 2:15 | — | — | — | 3:19 | — | — | 4:32 | — |
Moonset | — | 7:56 | — | — | — | 9:14 | — | — | 10:32 | — | — | 11:50 | — | — | — | 1:08 | — | — | 2:29 | — | — | 3:51 | — | — | 5:12 | — | — | 6:26 | — | — | 7:28 | — | — | 8:17 | — | — |
 | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:52 | — | — |
 | — | 4:39 | — | — | 4:40 | — | — | 4:42 | — | — | 4:43 | — | — | 4:44 | — | — | 4:45 | — | — | 4:45 | — | — | 4:46 | — | — | 4:49 | — | — | 4:50 | — | — | 4:51 | — | — | 4:52 | — |
Today's sea temperature in Knappa, Knappa Slough, Columbia River is 7.0 °C (Statistics for 02 Jan 1981-2005 – mean: 9.5 max: 11.0 min: 8.1°C) | ||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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