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 07:54 AM and sunset is at 04:30 PM.
Days 1–3 Weather SummaryHeavy rain (total 39mm), heaviest during Mon afternoon. Low air temperatures (max 8°C on Sun afternoon, min 5°C on Mon afternoon). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Low air temperatures (max 8°C on Thu morning, min 2°C on Fri night). Wind will be generally light. | Days 7–9 Weather SummaryMostly dry. Mild temperatures (max 8°C on Sat morning, min 1°C on Sat night). Wind will be generally light. | Days 10–12 Weather SummaryModerate rain (total 15mm), heaviest on Wed morning. Freeze-thaw conditions (max 9°C on Tue morning, min 0°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 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 | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
High Tide | 1:52PM2.67m | 3:52AM2.21m | 2:30PM2.65m | 4:27AM2.23m | 3:11PM2.60m | 5:03AM2.27m | 3:55PM2.51m | 5:39AM2.33m | 4:46PM2.36m | 6:17AM2.40m | 5:48PM2.17m | 6:58AM2.50m | 7:05PM2.00m | 7:44AM2.61m | 8:31PM1.89m | 8:33AM2.72m | 9:54PM1.90m | 9:24AM2.83m | 11:08PM1.97m | 10:18AM2.93m | 00:15AM2.08m | 11:12AM2.96m | 1:12AM2.19m | |||||||||||||
Low Tide | 8:50AM1.04m | 9:43PM-0.09m | 9:29AM1.02m | 10:16PM-0.07m | 10:10AM0.99m | 10:49PM-0.02m | 10:55AM0.95m | 11:23PM0.05m | 11:45AM0.90m | 00:01AM0.16m | 12:44PM0.81m | 00:43AM0.30m | 1:50PM0.68m | 1:32AM0.48m | 3:02PM0.49m | 2:28AM0.65m | 4:12PM0.27m | 3:30AM0.80m | 5:16PM0.04m | 4:35AM0.91m | 6:17PM-0.15m | 5:41AM0.98m | 7:12PM-0.29m | |||||||||||||
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 |  |  | |  | | | |  |  | |  |  |  |  | | |  |  | | | | | | | | | | | | | | | | | | |
light rain | mod rain | rain shwrs | light rain | heavy rain | rain shwrs | light rain | light rain | cloudy | some clouds | some clouds | light rain | cloudy | rain shwrs | some clouds | cloudy | some clouds | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | some clouds | clear | some clouds | some clouds | mod rain | rain shwrs | some clouds | some clouds | clear | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
3 | 6 | 4 | 5 | 12 | 4 | 4 | 1 | — | — | — | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 5 | — | — | — | — | |
max°C | 7 | 8 | 7 | 7 | 6 | 5 | 6 | 7 | 6 | 7 | 6 | 4 | 8 | 7 | 5 | 8 | 8 | 4 | 8 | 7 | 2 | 8 | 7 | 3 | 8 | 8 | 4 | 9 | 8 | 6 | 7 | 6 | 7 | 8 | 8 | 2 |
Moonrise | 9:38 | — | — | 10:10 | — | — | 10:36 | — | — | 10:57 | — | — | 11:16 | — | — | 11:33 | — | — | 11:50 | — | — | 12:09 | — | — | 12:32 | — | — | 1:00 | — | — | 1:39 | — | — | 2:32 | — | — |
Moonset | — | 5:54 | — | — | 7:03 | — | — | 8:15 | — | — | — | 9:27 | — | — | 10:39 | — | — | 11:52 | — | — | — | 1:07 | — | — | 2:26 | — | — | 3:50 | — | — | 5:15 | — | — | 6:36 | — | — |
 | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — |
 | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — | — | 4:31 | — | — | 4:32 | — | — | 4:34 | — | — | 4:34 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — | — | 4:38 | — |
Today's sea temperature in Knappa, Knappa Slough, Columbia River is 11.0° C (Statistics for 21 Dec 1981-2005 – mean: 9.7 max: 11.2 min: 8.2°C) | ||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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