Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Columbia River entrance, WA.
Next low tide : in 19m at 9:17 pm (1.5 ft)
Next high tide (tomorrow) : 3:16 am (6.7 ft)
Sunset today : 8:46 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:536.611:387.35:15-0.55:271.47:146:57Waning Crescent1Sun
2Mon12:277.25:57-0.66:160.47:156:55New Moon2Mon
3Tue12:317.51:017.76:37-0.57:03-0.47:166:53New Moon3Tue
4Wed1:227.51:368.27:16-0.17:50-1.07:186:51New Moon4Wed
5Thu2:147.32:118.57:550.58:37-1.37:196:49Waxing Crescent5Thu
6Fri3:077.02:488.68:351.19:26-1.37:206:48Waxing Crescent6Fri
7Sat4:026.53:298.49:181.810:17-1.07:226:46Waxing Crescent7Sat
8Sun5:036.04:148.010:042.611:14-0.57:236:44First Quarter8Sun
9Mon6:095.65:087.411:013.27:246:42First Quarter9Mon
10Tue7:235.46:166.712:220.112:133.77:266:40First Quarter10Tue
11Wed8:375.67:386.31:380.41:383.77:276:38First Quarter11Wed
12Thu9:425.99:006.12:510.52:583.27:286:36Waxing Gibbous12Thu
13Fri10:346.310:096.33:500.44:032.57:306:34Waxing Gibbous13Fri
14Sat11:156.711:066.44:380.34:561.77:316:33Waxing Gibbous14Sat
15Sun11:517.111:546.55:180.45:411.07:336:31Waxing Gibbous15Sun
16Mon12:227.35:530.66:220.57:346:29Full Moon16Mon
17Tue12:386.612:497.46:250.96:590.17:356:27Full Moon17Tue
18Wed1:196.51:147.56:561.37:35-0.17:376:25Full Moon18Wed
19Thu1:596.41:377.57:251.88:08-0.27:386:24Full Moon19Thu
20Fri2:396.21:587.67:542.38:40-0.27:396:22Waning Gibbous20Fri
21Sat3:206.02:227.68:232.89:11-0.17:416:20Waning Gibbous21Sat
22Sun4:035.82:497.68:543.29:450.17:426:18Waning Gibbous22Sun
23Mon4:505.53:237.49:293.610:250.47:446:17Waning Gibbous23Mon
24Tue5:455.34:067.110:133.911:180.77:456:15Third Quarter24Tue
25Wed6:495.25:026.711:124.27:476:13Third Quarter25Wed
26Thu7:565.26:186.312:270.812:364.27:486:12Third Quarter26Thu
27Fri8:565.67:496.11:420.82:043.77:496:10Third Quarter27Fri
28Sat9:466.19:136.32:480.73:162.97:516:09Waning Crescent28Sat
29Sun9:286.89:246.62:430.53:151.86:525:07Waning Crescent29Sun
30Mon10:067.510:256.93:310.54:080.66:545:05Waning Crescent30Mon
31Tue10:438.211:217.24:160.64:58-0.36:555:04New Moon31Tue
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 12:16 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 spring phase. Tonight's moon is 90% 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 Gibbous (90% 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