Tides Today & Tomorrow in Knappa, Knappa Slough, OR

TIDE TIMES for Friday, June 5, 2026
The tide is currently rising in Knappa, Knappa Slough, OR.
Next low tide : 12:26 pm (-0.1 ft)
Next high tide : in 2h 58m at 4:49 am (7.8 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 - Apr 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:429.74:507.811:02-1.010:561.46:527:43Waning Gibbous1Sun
2Mon4:249.65:457.411:52-0.811:431.96:507:44Waning Gibbous2Mon
3Tue5:099.26:457.012:45-0.46:487:46Waning Gibbous3Tue
4Wed5:598.77:506.712:342.41:440.06:467:47Third Quarter4Wed
5Thu6:598.08:586.61:352.82:500.46:447:48Third Quarter5Thu
6Fri8:107.410:056.82:492.94:000.76:437:50Third Quarter6Fri
7Sat9:287.111:037.14:082.85:040.76:417:51Waning Crescent7Sat
8Sun10:417.011:517.45:192.35:570.76:397:52Waning Crescent8Sun
9Mon11:447.16:191.76:420.86:377:54Waning Crescent9Mon
10Tue12:317.812:377.27:091.27:210.96:357:55Waning Crescent10Tue
11Wed1:068.01:247.37:530.77:561.16:337:56Waning Crescent11Wed
12Thu1:378.22:087.38:330.38:291.36:317:58New Moon12Thu
13Fri2:058.32:497.39:100.09:021.66:307:59New Moon13Fri
14Sat2:318.43:297.39:46-0.19:331.96:288:00New Moon14Sat
15Sun2:568.54:097.110:20-0.210:052.16:268:02New Moon15Sun
16Mon3:228.64:497.010:53-0.210:372.46:248:03Waxing Crescent16Mon
17Tue3:508.65:326.711:27-0.111:122.66:228:04Waxing Crescent17Tue
18Wed4:248.56:186.512:040.06:218:06Waxing Crescent18Wed
19Thu5:048.37:106.312:470.26:198:07Waxing Crescent19Thu
20Fri5:548.08:086.312:403.01:410.46:178:08First Quarter20Fri
21Sat6:567.69:086.41:443.02:450.56:158:10First Quarter21Sat
22Sun8:147.210:056.83:032.83:530.66:148:11First Quarter22Sun
23Mon9:387.110:557.44:232.34:540.66:128:12Waxing Gibbous23Mon
24Tue10:567.211:418.05:321.55:490.66:108:14Waxing Gibbous24Tue
25Wed12:047.46:320.76:400.76:098:15Waxing Gibbous25Wed
26Thu12:248.71:067.67:27-0.27:280.96:078:16Waxing Gibbous26Thu
27Fri1:059.22:027.88:19-0.88:161.26:058:17Full Moon27Fri
28Sat1:479.62:577.89:10-1.29:031.56:048:19Full Moon28Sat
29Sun2:299.83:507.89:59-1.49:511.86:028:20Full Moon29Sun
30Mon3:139.74:447.610:48-1.310:402.06:018:21Waning Gibbous30Mon
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 8:37 am — 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