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 07:46 AM and sunset is at 04:28 PM.
Days 1–3 Weather SummaryModerate rain (total 13mm), heaviest on Wed night. Cool air temperatures (max 15°C on Fri morning, min 8°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 35mm), heaviest during Mon morning. Cool air temperatures (max 14°C on Sat morning, min 9°C on Sun afternoon). Wind will be generally light. | Days 7–9 Weather SummaryHeavy rain (total 113mm), heaviest during Thu night. Very mild (max 15°C on Thu night, min 4°C on Wed night). Winds increasing (light winds from the SSE on Wed afternoon, strong winds from the SSW by Thu night). | Days 10–12 Weather SummaryHeavy rain (total 70mm), heaviest during Fri night. Very mild (max 13°C on Fri morning, min 3°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||||||
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 | 5:40PM2.28m | 7:18AM2.36m | 6:52PM2.06m | 8:07AM2.42m | 8:10PM1.92m | 8:53AM2.49m | 9:25PM1.87m | 9:36AM2.55m | 10:33PM1.90m | 10:16AM2.60m | 11:32PM1.97m | 10:53AM2.64m | 00:24AM2.05m | 11:28AM2.66m | 1:12AM2.11m | 12:03PM2.67m | 1:55AM2.15m | 12:39PM2.67m | 2:36AM2.18m | 1:15PM2.68m | 3:15AM2.20m | 1:52PM2.67m | 3:52AM2.21m | |||||||||||||
Low Tide | 12:35PM0.87m | 1:05AM0.19m | 1:44PM0.81m | 1:55AM0.36m | 2:55PM0.70m | 2:47AM0.53m | 4:03PM0.53m | 3:39AM0.67m | 5:01PM0.35m | 4:29AM0.79m | 5:52PM0.18m | 5:17AM0.88m | 6:37PM0.05m | 6:04AM0.95m | 7:18PM-0.04m | 7:57PM-0.09m | 7:29AM1.03m | 8:34PM-0.11m | 8:10AM1.04m | 9:09PM-0.11m | 8:50AM1.04m | 9:43PM-0.09m | ||||||||||||||
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 |  |  | | |  |  |  |  | | | | | | |  | | | | | |  | | | | |  | | | | | |  | | | | |
cloudy | light rain | mod rain | light rain | light rain | some clouds | some clouds | clear | clear | clear | some clouds | mod rain | cloudy | some clouds | mod rain | heavy rain | light rain | mod rain | cloudy | heavy rain | mod rain | rain shwrs | some clouds | mod rain | heavy rain | heavy rain | heavy rain | light rain | heavy rain | heavy rain | light rain | rain shwrs | rain shwrs | light rain | light rain | rain shwrs | |
km/h | ||||||||||||||||||||||||||||||||||||
— | 3 | 7 | 1 | 2 | — | — | — | — | — | — | 6 | — | — | 7 | 13 | 2 | 7 | — | 12 | 9 | 4 | — | 10 | 14 | 18 | 46 | 4 | 12 | 23 | 2 | 2 | 7 | 5 | 4 | 10 | |
max°C | 14 | 14 | 13 | 11 | 12 | 13 | 15 | 14 | 10 | 14 | 13 | 10 | 10 | 10 | 11 | 13 | 13 | 11 | 11 | 11 | 10 | 8 | 7 | 6 | 12 | 14 | 15 | 13 | 13 | 13 | 9 | 8 | 8 | 7 | 7 | 6 |
Moonrise | — | — | 11:22 | — | — | — | 12:31 | — | — | 1:38 | — | — | 2:44 | — | — | 3:50 | — | — | 4:57 | — | — | 6:04 | — | — | 7:08 | — | — | 8:07 | — | — | 8:57 | — | — | 9:38 | — | — |
Moonset | 12:09 | — | — | 12:26 | — | — | 12:42 | — | — | 12:57 | — | — | 1:14 | — | — | 1:33 | — | — | 1:56 | — | — | 2:26 | — | — | — | 3:03 | — | — | 3:50 | — | — | 4:48 | — | — | 5:54 | — |
 | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — |
 | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:29 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Today's sea temperature in Knappa, Knappa Slough, Columbia River is 11.2° C (Statistics for 10 Dec 1981-2005 – mean: 10.3 max: 11.6 min: 8.3°C) | ||||||||||||||||||||||||||||||||||||
Nearest