Knappa tide times

Knappa, ORKnappaNOAA 9439069Sunday, October 11 · PDTSun Oct 11Predictions onlyChange station
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The last tide turn at Knappa today has passed. Tomorrow's first low is at 9:47 AM. Spring tides peak today, so expect bigger highs and lower lows.

Estimated now
−0.3 ft ↑
Rising 1.0 ft per hour
Next high
3:39 AM
In 4 h 52 min · 7.3 ft
Next low
9:47 AM
In 11 h 00 min · 1.4 ft
Tide range today
9.4 ft
Spring tides Sunday
Predictions only. No live gauge at this station.

Today's tide

Estimated curve between high and low timesNightHeight above MLLW
−2 ft0 ft2 ft4 ft6 ft8 ftNOW 10:462:53 AMHigh · 7.5 ft9:13 AMLow · 0.9 ft2:43 PMHigh · 8.7 ft9:55 PMLow · −0.7 ft
Tide chart for Knappa, today. High 7.5 ft at 2:53 AM, low 0.9 ft at 9:13 AM, high 8.7 ft at 2:43 PM, low −0.7 ft at 9:55 PM.

Heights and times are estimated from Astoria, Tongue Point, Columbia River using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Today's tides

ft above MLLW
  • High2:53 AM7.5 ft
  • Low9:13 AM0.9 ft
  • High2:43 PM8.7 ft
  • Low9:55 PM−0.7 ft
Tide times for Knappa
TideTimeHeight
High2:53 AM7.5 ft
Low9:13 AM0.9 ft
High2:43 PM8.7 ft
Low9:55 PM−0.7 ft
Sunrise
7:27 AM
First light 6:57
Sunset
6:37 PM
Last light 7:07
Moon
2%
Waxing crescent
Tide range
9.4 ft
Spring tides Sun

Best windows today

Plan the week →
  • Fishing
    11:00 to 11:00 PM

    Today's best window (7:00 to 8:00 AM) has passed. Dawn light with the outgoing tide around the 9:13 AM low.

  • Tidepools & shelling
    Next: Mon 9:00 to 10:00 AM
    Earlier today: 9:00 to 10:00 AM

    Today's best window (9:00 to 10:00 AM) has passed.

  • Surfing
    Next: Mon 11:00 AM to 1:00 PM
    Earlier today: 11:00 AM to 12:00 PM

    Today's best window (11:00 AM to 12:00 PM) has passed.

  • Shallow boat launch
    Avoid 8:00 to 10:00 AM

    Under 1.5 ft around low water. Launch before 8:00 AM.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodaySun 11H2:53a7.5L9:13a0.9H2:43p8.7L9:55p−0.79.4 spring tide
MonOct 12H3:39a7.3L9:47a1.4H3:12p8.6L10:33p−0.79.3 spring tide
TueOct 13H4:23a7.1L10:21a1.9H3:40p8.4L11:09p−0.58.9 spring tide
WedOct 14H5:09a6.8L10:54a2.4H4:08p8.2L11:46p−0.18.4
ThuOct 15H5:57a6.4L11:30a2.8H4:40p7.95.1
FriOct 16L12:26a0.2H6:49a6.1L12:12p3.1H5:18p7.57.3
SatOct 17L1:13a0.6H7:49a5.9L1:06p3.4H6:07p7.16.5

Spring tides Sunday to Tuesday. Lows drop to −0.7 ft, the best shelling days this week. Spring and neap tides

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 9439069.

Nearby stations

Currents

Woody Island Channel (off Seal Island)

  • Max flood1:35 AM 0.8 kn
  • Slack3:48 AM
  • Max ebb8:20 AM 1.1 kn
  • Slack10:55 AM
  • Max flood1:17 PM 0.7 kn
  • Slack3:37 PM
  • Max ebb8:37 PM 1.5 kn
  • Slack11:42 PM

Current predictions for Woody Island Channel (off Seal Island), 3 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Astoria, Tongue Point, Columbia River
Live gauge
None
Coordinates
46.187° N, 123.588° W
Time zone
Pacific, UTC−7
Station ID
NOAA 9439069

About the tides at Knappa

Tides here are mixed. On average the two daily highs differ by 1.2 ft, so check which low is the lower one before you head out. The pattern follows the reference station at Astoria, Tongue Point, Columbia River. The range is large, about 6.7 ft on average. Flats and bars appear and vanish quickly, so keep an eye on the time. From the average lower low to the average higher high, the difference is 8.3 ft. The next spring tides peak today, with a range of 9.4 ft. Neap tides follow on Thursday, when the range shrinks to 5.1 ft. In the next 12 months the highest predicted tide here is 10.3 ft on December 24, and the lowest is −1.8 ft on July 5.

Knappa is a subordinate station. NOAA predicts its tides by adjusting Astoria, Tongue Point, Columbia River: highs come about 29 min and lows about 58 min later than there. NOAA measured the tide here from 1935 to 1981 to set up these predictions. The nearest other station is Settlers Point, 4 mi away, where high tide comes about 7 min earlier. For tidal currents, see Woody Island Channel (off Seal Island).

Predictions are based on Astoria, Tongue Point, Columbia River.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable October calendar

Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.