Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Columbia River entrance, WA.
Next low tide : in 2h 34m at 5:07 pm (2.8 ft)
Next high tide : 11:19 pm (8.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - May 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:558.23:436.18:51-0.68:363.36:028:24Waning Gibbous1Fri
2Sat2:318.24:296.09:30-0.59:173.46:008:25Waning Gibbous2Sat
3Sun3:128.15:195.810:14-0.410:053.55:598:27Waning Gibbous3Sun
4Mon4:017.86:135.811:04-0.211:043.55:578:28Third Quarter4Mon
5Tue5:007.37:105.912:010.15:568:29Third Quarter5Tue
6Wed6:126.88:076.212:183.41:040.45:548:31Third Quarter6Wed
7Thu7:346.48:596.71:382.92:070.65:538:32Third Quarter7Thu
8Fri8:566.29:487.32:522.03:050.85:518:33Waning Crescent8Fri
9Sat10:106.310:327.93:571.03:581.15:508:34Waning Crescent9Sat
10Sun11:156.411:158.44:550.04:481.45:498:36Waning Crescent10Sun
11Mon12:156.65:48-0.75:361.85:478:37New Moon11Mon
12Tue1:106.76:39-1.26:242.25:468:38New Moon12Tue
13Wed12:388.82:036.77:27-1.47:112.65:458:39New Moon13Wed
14Thu1:198.72:546.78:14-1.47:582.95:448:41New Moon14Thu
15Fri2:018.53:446.68:59-1.18:453.15:428:42Waxing Crescent15Fri
16Sat2:438.14:346.49:44-0.79:333.35:418:43Waxing Crescent16Sat
17Sun3:277.55:236.210:27-0.210:233.45:408:44Waxing Crescent17Sun
18Mon4:156.96:126.111:120.311:183.45:398:45First Quarter18Mon
19Tue5:096.37:026.011:590.75:388:46First Quarter19Tue
20Wed6:125.77:506.112:223.312:491.25:378:48First Quarter20Wed
21Thu7:245.28:366.31:303.01:401.65:368:49First Quarter21Thu
22Fri8:395.09:196.62:372.52:311.95:358:50First Quarter22Fri
23Sat9:495.09:587.03:351.83:192.25:348:51Waxing Gibbous23Sat
24Sun10:505.210:337.34:261.14:042.55:338:52Waxing Gibbous24Sun
25Mon11:455.511:087.65:120.44:482.85:328:53Waxing Gibbous25Mon
26Tue12:345.85:56-0.15:323.05:318:54Waxing Gibbous26Tue
27Wed1:216.06:37-0.56:153.35:318:55Full Moon27Wed
28Thu12:178.02:066.27:18-0.76:593.45:308:56Full Moon28Thu
29Fri12:548.22:516.27:59-1.07:433.45:298:57Full Moon29Fri
30Sat1:348.33:356.38:40-1.18:273.45:288:58Waning Gibbous30Sat
31Sun2:188.34:186.39:21-1.19:153.35:288:59Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9440574)

Common Questions About Columbia River entrance, WA Tides

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What time does the tide turn (slack tide) in Columbia River entrance, WA today?

Slack tide in Columbia River entrance, WA is approximately 8:13 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 Columbia River entrance, WA?

Columbia River entrance, WA is currently in a spring phase. Tonight's moon is 5% 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 maximum.

What datum are Columbia River entrance, WA 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 Columbia River entrance, WA?

Tide predictions for Columbia River entrance, WA 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 Columbia River entrance, WA?

Tide data for Columbia River entrance, WA is sourced from NOAA Station #9440574. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9440574.

What is the moon phase in Columbia River entrance, WA tonight?

Tonight the moon over Columbia River entrance, WA is Waning Crescent (5% illuminated). This places Columbia River entrance, WA in a spring tide cycle, so tidal ranges are near their weekly maximum 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