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Knappa, Knappa Slough, Columbia River tide table for the next 7 days |
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| m, °C | ft, °F | Days 0–3 Weather Summary: Some drizzle, heaviest during Mon afternoon. Warm air temperatures (max 29°C on Wed afternoon, min 14°C on Mon morning). Wind will be generally light. | Days 4–6 Weather Summary: Heavy rain (total 25mm), heaviest during Sat morning. Warm air temperatures (max 26°C on Thu afternoon, min 14°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the WNW by Sat night). | ||||||||||||||||
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| Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | |||||||||||||
| name |
morn- ing |
after- noon |
night |
morn- ing |
after- noon |
night |
morn- ing |
after- noon |
night |
morn- ing |
after- noon |
night |
morn- ing |
after- noon |
night |
morn- ing |
after- noon |
night |
| Wave Height Map See all maps |
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High Tide height (m) |
6:08AM 1.93 |
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5:38PM 2.23 |
7:02AM 1.81 |
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6:16PM 2.13 |
8:05AM 1.72 |
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7:05PM 2.03 |
9:13AM 1.70 |
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8:11PM 1.95 |
10:19AM 1.76 |
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9:27PM 1.93 |
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11:15AM 1.87 |
10:37PM 1.99 |
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Low Tide height (m) |
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12:16PM 0.51 |
1:07AM 0.11 |
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12:58PM 0.65 |
1:58AM 0.19 |
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1:51PM 0.76 |
3:00AM 0.24 |
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2:58PM 0.83 |
4:09AM 0.25 |
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4:13PM 0.82 |
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5:12AM 0.20 |
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5:21PM 0.73 |
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Swell (m) direction |
 WNW |
WNW |
 W |
 W |
 W |
 W |
 W |
 W |
W |
W |
W |
 W |
W |
 W |
 W |
 W |
 W |
 W |
| Wave Height (m) | 1.1 | 1.1 | 1.7 | 1.5 | 1.4 | 1.2 | 1.1 | 1.0 | 1.1 | 1.1 | 1.2 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 2.1 | 2.2 |
| Period (s) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 9 | 10 |
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Wind (km/h) |
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| Today's sea temperature in Knappa, Knappa Slough, Columbia River is 14.0 °C (Statistics for 25 Sep 1981-2005 – mean: 14.4 max: 16.3 min: 12.7 °C) | ||||||||||||||||||
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| Summary | cloudy |
light rain |
some clouds |
some clouds |
clear | clear | clear | clear | clear | clear | clear | clear |
rain shwrs |
rain shwrs |
rain shwrs |
risk tstorm |
risk tstorm |
rain shwrs |
| Rain mm | - | 1 | - | - | - | - | - | - | - | - | - | - | 2 | 1 | 5 | 12 | 2 | 3 |
| High °C | 15 | 15 | 15 | 17 | 21 | 17 | 21 | 29 | 25 | 23 | 26 | 18 | 16 | 17 | 15 | 14 | 15 | 14 |
| Low °C | 14 | 15 | 15 | 15 | 21 | 16 | 16 | 27 | 19 | 18 | 23 | 15 | 15 | 16 | 14 | 14 | 15 | 14 |
| Chill °C | 15 | 14 | 14 | 17 | 21 | 16 | 21 | 29 | 25 | 23 | 26 | 18 | 15 | 16 | 14 | 13 | 13 | 12 |
| Sunrise | 7:03 | - | - | 7:05 | - | - | 7:07 | - | - | 7:07 | - | - | 7:09 | - | - | 7:11 | - | - |
| Sunset | - | 7:06 | - | - | 7:04 | - | - | 7:01 | - | - | 7:00 | - | - | 6:58 | - | - | 6:55 | - |
Tide datum: -.
