46.1867’ N, 123.5880’ W

Knappa, Knappa Slough, OR

53°
H 54°
L 39°
WNW
5mph
High tide
6:11 pm

Tides Today & Tomorrow in Knappa, Knappa Slough, OR

TIDE TIMES for Sunday, November 1, 2026
The tide is currently rising in Knappa, Knappa Slough, OR.
Next low tide (tomorrow) : 2:04 am (0.2 ft)
Next high tide : in 3h 01m at 6:11 pm (7.6 ft)
Sunset today : 5:00 pm
Sunrise tomorrow : 6:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9439069
Common Questions About Tides

Knappa, Knappa Slough, OR Tides - Oct 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:456.58:107.32:440.12:432.47:136:54Third Quarter1Wed
2Thu9:566.59:257.03:560.34:002.47:146:52Third Quarter2Thu
3Fri11:006.810:377.05:040.35:122.27:166:50Waning Crescent3Fri
4Sat11:537.211:407.26:010.26:121.77:176:48Waning Crescent4Sat
5Sun12:377.66:490.17:031.27:186:46Waning Crescent5Sun
6Mon12:327.41:147.87:300.17:480.87:206:44Waning Crescent6Mon
7Tue1:187.51:488.08:070.28:290.47:216:42New Moon7Tue
8Wed2:007.52:198.08:410.49:070.27:226:40New Moon8Wed
9Thu2:407.52:468.19:130.79:420.07:246:38New Moon9Thu
10Fri3:197.43:128.19:441.010:160.07:256:37New Moon10Fri
11Sat3:577.23:378.110:141.310:480.07:266:35Waxing Crescent11Sat
12Sun4:367.04:028.110:441.611:200.07:286:33Waxing Crescent12Sun
13Mon5:186.74:318.011:162.011:550.17:296:31Waxing Crescent13Mon
14Tue6:036.55:077.911:532.37:306:29Waxing Crescent14Tue
15Wed6:576.25:527.612:350.312:382.77:326:27First Quarter15Wed
16Thu8:016.16:517.31:290.51:402.97:336:26First Quarter16Thu
17Fri9:106.28:077.02:380.73:012.97:346:24First Quarter17Fri
18Sat10:146.59:317.03:540.64:222.67:366:22First Quarter18Sat
19Sun11:097.110:487.35:010.45:311.97:376:20Waxing Gibbous19Sun
20Mon11:557.711:557.75:580.26:291.17:396:19Waxing Gibbous20Mon
21Tue12:388.36:490.17:230.37:406:17Waxing Gibbous21Tue
22Wed12:538.11:198.87:360.18:13-0.47:416:15Full Moon22Wed
23Thu1:488.31:589.38:220.29:02-0.97:436:13Full Moon23Thu
24Fri2:418.42:399.59:070.59:51-1.27:446:12Full Moon24Fri
25Sat3:338.33:199.59:520.810:39-1.37:466:10Waning Gibbous25Sat
26Sun3:268.13:029.49:381.310:28-1.16:475:09Waning Gibbous26Sun
27Mon4:217.83:469.010:251.711:18-0.86:485:07Waning Gibbous27Mon
28Tue5:187.54:358.411:162.26:505:05Waning Gibbous28Tue
29Wed6:187.25:327.712:12-0.312:152.56:515:04Third Quarter29Wed
30Thu7:227.16:397.11:110.21:242.76:535:02Third Quarter30Thu
31Fri8:257.17:556.72:160.62:402.76:545:01Third Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9439069)

Common Questions About Knappa, Knappa Slough, OR Tides

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

Knappa, Knappa Slough, OR is currently in a neap phase. Tonight's moon is 50% 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 near their weekly minimum.

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 (50% illuminated). This places Knappa, Knappa Slough, OR in a neap tide cycle, so tidal ranges are near their weekly minimum 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