Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Columbia River entrance, WA.
Next low tide : 11:11 am (1.8 ft)
Next high tide : in 5h 37m at 6:00 am (5.0 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 6:03 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - Aug 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:216.45:527.611:130.35:598:46First Quarter1Tue
2Wed6:285.76:457.512:110.612:061.16:008:44First Quarter2Wed
3Thu7:425.37:437.31:210.61:071.86:018:43First Quarter3Thu
4Fri8:595.28:447.32:330.42:142.26:028:41Waxing Gibbous4Fri
5Sat10:105.49:447.33:400.13:212.46:048:40Waxing Gibbous5Sat
6Sun11:115.810:397.44:39-0.34:222.46:058:39Waxing Gibbous6Sun
7Mon12:026.15:29-0.65:162.26:068:37Waxing Gibbous7Mon
8Tue12:476.46:14-0.76:052.06:078:36Full Moon8Tue
9Wed12:157.41:276.56:54-0.86:501.86:098:34Full Moon9Wed
10Thu12:577.42:036.67:30-0.77:321.66:108:32Full Moon10Thu
11Fri1:367.22:366.68:02-0.58:111.56:118:31Full Moon11Fri
12Sat2:146.93:076.68:32-0.38:491.46:128:29Waning Gibbous12Sat
13Sun2:526.73:356.69:010.09:251.36:148:28Waning Gibbous13Sun
14Mon3:306.34:026.69:280.410:011.36:158:26Waning Gibbous14Mon
15Tue4:105.94:306.69:570.810:411.36:168:24Waning Gibbous15Tue
16Wed4:565.45:036.610:311.311:281.36:178:23Third Quarter16Wed
17Thu5:525.05:446.611:111.96:198:21Third Quarter17Thu
18Fri7:034.66:356.612:281.312:052.46:208:19Third Quarter18Fri
19Sat8:224.57:386.61:401.21:142.86:218:18Third Quarter19Sat
20Sun9:364.88:476.82:520.82:312.96:228:16Waning Crescent20Sun
21Mon10:395.39:537.13:560.23:412.76:248:14Waning Crescent21Mon
22Tue11:315.810:547.64:51-0.44:432.26:258:12Waning Crescent22Tue
23Wed12:176.45:41-0.95:391.66:268:10New Moon23Wed
24Thu1:006.86:27-1.36:311.06:278:09New Moon24Thu
25Fri12:428.11:417.37:11-1.47:220.56:298:07New Moon25Fri
26Sat1:348.12:227.67:54-1.38:120.06:308:05New Moon26Sat
27Sun2:257.93:027.88:36-1.09:02-0.26:318:03Waxing Crescent27Sun
28Mon3:177.53:447.99:18-0.59:53-0.36:328:01Waxing Crescent28Mon
29Tue4:126.94:277.810:010.110:47-0.26:347:59Waxing Crescent29Tue
30Wed5:116.35:157.510:470.911:460.16:357:58First Quarter30Wed
31Thu6:165.76:087.211:401.76:367:56First Quarter31Thu
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 8:35 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 neap phase. Tonight's moon is 53% 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 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 Third Quarter (53% illuminated). This places Columbia River entrance, WA 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