Tides Today & Tomorrow in Knappa, Knappa Slough, OR

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Knappa, Knappa Slough, OR.
Next low tide : in 6h 19m at 1:04 pm (0.1 ft)
Next high tide : 7:30 pm (6.8 ft)
Sunset today : 9:02 pm
Sunrise tomorrow : 5:23 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9439069
Common Questions About Tides

Knappa, Knappa Slough, OR Tides - Apr 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:106.810:596.53:533.14:531.26:537:42First Quarter1Tue
2Wed10:246.811:466.95:042.75:471.06:517:44Waxing Gibbous2Wed
3Thu11:287.06:042.26:330.96:497:45Waxing Gibbous3Thu
4Fri12:267.412:237.36:551.67:140.86:477:46Waxing Gibbous4Fri
5Sat1:017.81:137.57:411.07:530.86:457:48Waxing Gibbous5Sat
6Sun1:338.21:597.78:250.48:310.96:437:49Full Moon6Sun
7Mon2:058.62:457.89:070.09:091.06:427:50Full Moon7Mon
8Tue2:378.93:317.89:49-0.49:471.36:407:52Full Moon8Tue
9Wed3:129.24:187.710:31-0.610:261.56:387:53Waning Gibbous9Wed
10Thu3:499.35:087.411:15-0.711:091.86:367:54Waning Gibbous10Thu
11Fri4:309.36:027.212:02-0.66:347:56Waning Gibbous11Fri
12Sat5:189.07:016.912:55-0.36:327:57Waning Gibbous12Sat
13Sun6:138.68:066.812:512.41:560.06:307:58Third Quarter13Sun
14Mon7:208.09:136.92:002.63:040.36:298:00Third Quarter14Mon
15Tue8:397.610:167.23:202.54:130.46:278:01Third Quarter15Tue
16Wed9:597.411:127.74:382.15:150.46:258:02Waning Crescent16Wed
17Thu11:127.45:461.46:100.46:238:04Waning Crescent17Thu
18Fri12:018.212:157.66:450.76:580.56:218:05Waning Crescent18Fri
19Sat12:448.61:107.77:370.17:430.76:208:06Waning Crescent19Sat
20Sun1:238.82:007.88:25-0.38:241.06:188:08New Moon20Sun
21Mon1:598.92:487.79:09-0.59:031.36:168:09New Moon21Mon
22Tue2:348.93:337.69:50-0.69:411.76:148:10New Moon22Tue
23Wed3:068.84:177.410:29-0.510:182.06:138:12Waxing Crescent23Wed
24Thu3:388.65:017.211:07-0.310:552.36:118:13Waxing Crescent24Thu
25Fri4:108.45:457.011:43-0.111:332.56:098:14Waxing Crescent25Fri
26Sat4:448.06:306.712:200.26:088:16Waxing Crescent26Sat
27Sun5:237.77:206.512:152.71:010.56:068:17First Quarter27Sun
28Mon6:107.28:136.51:042.91:490.86:058:18First Quarter28Mon
29Tue7:096.89:076.52:052.92:451.16:038:19First Quarter29Tue
30Wed8:226.410:006.83:172.83:451.26:018:21First Quarter30Wed
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 4:17 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 66% 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 Third Quarter (66% 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