Tides Today & Tomorrow in Knappa, Knappa Slough, OR

TIDE TIMES for Friday, June 5, 2026
The tide is currently falling in Knappa, Knappa Slough, OR.
Next low tide : in 32m at 12:26 pm (-0.1 ft)
Next high tide : 6:51 pm (6.7 ft)
Sunset today : 9:01 pm
Sunrise tomorrow : 5:24 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #9439069
Common Questions About Tides

Knappa, Knappa Slough, OR Tides - Jan 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:409.85:062.96:30-0.57:564:39Waning Crescent1Tue
2Wed12:257.511:36 AM10.06:092.97:22-0.97:564:40New Moon2Wed
3Thu1:177.912:2910.07:072.78:10-1.17:564:41New Moon3Thu
4Fri2:058.31:209.98:022.58:55-1.07:564:42New Moon4Fri
5Sat2:508.52:099.68:532.39:36-0.87:564:43Waxing Crescent5Sat
6Sun3:328.62:569.29:432.110:15-0.57:564:44Waxing Crescent6Sun
7Mon4:138.63:448.610:312.010:510.07:564:45Waxing Crescent7Mon
8Tue4:518.64:327.911:181.911:250.67:554:46Waxing Crescent8Tue
9Wed5:298.55:247.212:091.97:554:47First Quarter9Wed
10Thu6:078.46:246.512:001.21:031.97:554:49First Quarter10Thu
11Fri6:488.37:336.112:391.92:051.97:544:50First Quarter11Fri
12Sat7:338.28:505.91:262.53:121.77:544:51First Quarter12Sat
13Sun8:238.210:046.12:253.14:171.47:534:52Waxing Gibbous13Sun
14Mon9:168.311:086.43:313.45:141.07:534:54Waxing Gibbous14Mon
15Tue10:098.44:353.56:040.67:524:55Waxing Gibbous15Tue
16Wed12:016.910:58 AM8.65:323.46:480.27:514:56Waxing Gibbous16Wed
17Thu12:457.211:44 AM8.86:243.37:28-0.17:514:57Full Moon17Thu
18Fri1:257.612:279.07:113.08:05-0.37:504:59Full Moon18Fri
19Sat2:027.81:089.17:562.78:40-0.47:495:00Full Moon19Sat
20Sun2:368.01:499.18:382.49:13-0.47:485:02Full Moon20Sun
21Mon3:078.22:319.09:202.19:45-0.37:485:03Waning Gibbous21Mon
22Tue3:398.53:168.710:021.810:180.07:475:04Waning Gibbous22Tue
23Wed4:118.74:038.210:461.510:520.47:465:06Waning Gibbous23Wed
24Thu4:458.94:577.611:341.311:291.07:455:07Waning Gibbous24Thu
25Fri5:249.16:016.912:311.27:445:09Third Quarter25Fri
26Sat6:119.17:196.412:131.71:391.17:435:10Third Quarter26Sat
27Sun7:069.18:456.21:092.42:571.07:425:12Third Quarter27Sun
28Mon8:119.110:086.42:212.94:140.67:415:13Waning Crescent28Mon
29Tue9:209.111:176.93:423.15:210.17:395:15Waning Crescent29Tue
30Wed10:279.34:563.16:18-0.37:385:16Waning Crescent30Wed
31Thu12:137.511:28 AM9.46:012.87:08-0.67:375:17Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439069)

Common Questions About Knappa, Knappa Slough, OR Tides

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What time does the tide turn (slack tide) in Knappa, Knappa Slough, OR today?

Slack tide in Knappa, Knappa Slough, OR is approximately 3:38 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Knappa, Knappa Slough, OR?

Knappa, Knappa Slough, OR is currently in a transitional phase. Tonight's moon is 75% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Knappa, Knappa Slough, OR tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Knappa, Knappa Slough, OR?

Tide predictions for Knappa, Knappa Slough, OR come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Knappa, Knappa Slough, OR?

Tide data for Knappa, Knappa Slough, OR is sourced from NOAA Station #9439069. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9439069.

What is the moon phase in Knappa, Knappa Slough, OR tonight?

Tonight the moon over Knappa, Knappa Slough, OR is Waning Gibbous (75% illuminated). This places Knappa, Knappa Slough, OR in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA