Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Columbia River entrance, WA.
Next low tide : 5:07 pm (2.8 ft)
Next high tide : in 2h 38m at 12:11 pm (5.8 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 - Sep 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:164.97:256.71:330.31:043.26:367:55Third Quarter1Tue
2Wed9:325.18:416.52:490.32:253.36:377:53Waning Crescent2Wed
3Thu10:355.59:526.63:560.03:383.06:397:51Waning Crescent3Thu
4Fri11:255.910:516.74:49-0.24:392.56:407:50Waning Crescent4Fri
5Sat12:066.35:33-0.45:291.96:417:48Waning Crescent5Sat
6Sun12:416.56:11-0.46:141.46:427:46New Moon6Sun
7Mon12:256.81:126.76:44-0.36:541.06:447:44New Moon7Mon
8Tue1:056.71:406.87:140.07:320.76:457:42New Moon8Tue
9Wed1:446.52:056.97:420.38:070.46:467:40New Moon9Wed
10Thu2:226.32:287.08:090.78:400.36:487:38Waxing Crescent10Thu
11Fri3:006.02:507.18:351.29:120.26:497:36Waxing Crescent11Fri
12Sat3:405.73:137.29:011.79:450.36:507:34Waxing Crescent12Sat
13Sun4:235.33:427.29:302.210:230.46:517:32Waxing Crescent13Sun
14Mon5:144.94:187.110:052.811:120.66:537:30First Quarter14Mon
15Tue6:194.55:056.910:503.36:547:28First Quarter15Tue
16Wed7:394.46:086.612:190.811:56 AM3.76:557:26First Quarter16Wed
17Thu8:574.67:306.41:430.81:293.76:567:24First Quarter17Thu
18Fri9:595.18:546.62:590.42:543.36:587:22Waxing Gibbous18Fri
19Sat10:485.710:086.93:59-0.14:022.56:597:20Waxing Gibbous19Sat
20Sun11:296.311:107.34:49-0.55:001.57:007:18Waxing Gibbous20Sun
21Mon12:077.05:34-0.75:520.57:017:16Full Moon21Mon
22Tue12:067.512:447.66:16-0.66:42-0.37:037:14Full Moon22Tue
23Wed1:007.61:208.16:57-0.37:31-1.07:047:12Full Moon23Wed
24Thu1:527.41:568.47:370.18:19-1.37:057:10Waning Gibbous24Thu
25Fri2:447.12:348.58:180.79:07-1.47:077:08Waning Gibbous25Fri
26Sat3:386.73:148.48:591.49:57-1.17:087:06Waning Gibbous26Sat
27Sun3:346.22:578.08:442.19:51-0.66:096:04Waning Gibbous27Sun
28Mon4:365.73:467.49:342.710:520.06:106:02Third Quarter28Mon
29Tue5:445.44:456.810:353.36:126:00Third Quarter29Tue
30Wed6:565.35:596.212:030.411:52 AM3.56:135:58Third Quarter30Wed
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 2:39 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