Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Columbia River entrance, WA.
Next low tide (tomorrow) : in 5h 28m at 12:09 am (2.1 ft)
Next high tide (tomorrow) : 6:09 am (5.9 ft)
Sunset today : 9:11 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - Dec 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:316.712:238.36:303.57:21-0.37:394:31Full Moon1Tue
2Wed2:126.712:558.37:073.77:56-0.37:404:31Waning Gibbous2Wed
3Thu2:536.61:318.27:463.98:32-0.27:414:31Waning Gibbous3Thu
4Fri3:356.62:128.08:273.99:110.07:424:30Waning Gibbous4Fri
5Sat4:206.53:007.69:153.99:550.37:434:30Waning Gibbous5Sat
6Sun5:086.53:597.110:143.910:470.67:454:30Third Quarter6Sun
7Mon5:596.75:126.511:263.611:461.07:464:30Third Quarter7Mon
8Tue6:517.06:376.212:433.07:474:30Third Quarter8Tue
9Wed7:427.58:016.112:491.41:552.17:474:30Waning Crescent9Wed
10Thu8:318.19:176.31:491.72:591.17:484:30Waning Crescent10Thu
11Fri9:188.710:236.72:462.03:560.17:494:30Waning Crescent11Fri
12Sat10:049.211:227.03:402.34:49-0.77:504:30Waning Crescent12Sat
13Sun10:499.54:332.65:40-1.27:514:30New Moon13Sun
14Mon12:177.311:34 AM9.65:252.96:28-1.47:524:30New Moon14Mon
15Tue1:097.412:199.56:163.17:16-1.37:524:30New Moon15Tue
16Wed2:007.51:059.27:063.28:01-1.17:534:30Waxing Crescent16Wed
17Thu2:497.41:528.77:573.48:45-0.67:544:31Waxing Crescent17Thu
18Fri3:377.32:408.18:473.49:28-0.17:544:31Waxing Crescent18Fri
19Sat4:257.23:317.39:413.510:120.57:554:32Waxing Crescent19Sat
20Sun5:137.14:296.610:393.510:571.27:564:32First Quarter20Sun
21Mon6:017.05:355.911:443.411:461.87:564:32First Quarter21Mon
22Tue6:487.16:495.512:533.07:574:33First Quarter22Tue
23Wed7:357.28:055.312:382.41:582.47:574:34First Quarter23Wed
24Thu8:197.49:145.51:322.82:551.87:574:34Waxing Gibbous24Thu
25Fri9:007.710:145.82:243.23:451.17:584:35Waxing Gibbous25Fri
26Sat9:397.911:066.23:143.44:300.67:584:36Waxing Gibbous26Sat
27Sun10:168.111:526.54:013.75:120.27:584:36Waxing Gibbous27Sun
28Mon10:528.34:473.85:51-0.17:584:37Full Moon28Mon
29Tue12:366.811:28 AM8.45:313.96:30-0.37:584:38Full Moon29Tue
30Wed1:176.912:058.56:133.97:06-0.47:594:39Full Moon30Wed
31Thu1:577.012:438.66:553.87:43-0.67:594:40Full Moon31Thu
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 3:09 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 Columbia River entrance, WA?

Columbia River entrance, WA is currently in a transitional phase. Tonight's moon is 38% 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 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 First Quarter (38% illuminated). This places Columbia River entrance, WA 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