Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Columbia River entrance, WA.
Next low tide : in 2h 25m at 3:23 am (0.0 ft)
Next high tide : 10:12 am (4.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - Apr 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:566.810:006.11:503.93:120.66:527:46First Quarter1Sun
2Mon9:176.710:546.53:113.54:130.46:517:47Waxing Gibbous2Mon
3Tue10:266.811:386.94:182.95:020.36:497:49Waxing Gibbous3Tue
4Wed11:226.95:122.25:430.36:477:50Waxing Gibbous4Wed
5Thu12:157.312:117.06:001.56:200.46:457:51Full Moon5Thu
6Fri12:487.512:557.06:421.06:530.76:437:53Full Moon6Fri
7Sat1:177.61:376.87:200.67:241.16:417:54Full Moon7Sat
8Sun1:447.62:176.77:560.37:531.56:397:55Full Moon8Sun
9Mon2:087.72:576.48:300.28:212.06:377:57Full Moon9Mon
10Tue2:317.73:386.29:030.28:502.56:357:58Waning Gibbous10Tue
11Wed2:547.74:205.99:340.29:202.96:347:59Waning Gibbous11Wed
12Thu3:217.65:075.610:090.49:543.46:328:01Waning Gibbous12Thu
13Fri3:547.56:035.310:490.610:373.86:308:02Waning Gibbous13Fri
14Sat4:367.27:095.111:420.911:354.16:288:03Third Quarter14Sat
15Sun5:316.88:195.212:521.06:268:05Third Quarter15Sun
16Mon6:446.59:215.512:574.22:071.06:258:06Third Quarter16Mon
17Tue8:106.410:126.02:223.83:120.76:238:07Waning Crescent17Tue
18Wed9:296.610:546.63:333.14:070.46:218:09Waning Crescent18Wed
19Thu10:376.911:327.24:322.14:540.36:198:10Waning Crescent19Thu
20Fri11:377.25:251.15:390.36:188:11Waning Crescent20Fri
21Sat12:087.812:337.36:150.16:220.66:168:13New Moon21Sat
22Sun12:448.31:277.47:04-0.67:041.06:148:14New Moon22Sun
23Mon1:218.72:217.37:52-1.27:471.56:128:15New Moon23Mon
24Tue2:008.93:157.08:40-1.48:312.06:118:17Waxing Crescent24Tue
25Wed2:408.94:116.79:29-1.39:182.66:098:18Waxing Crescent25Wed
26Thu3:248.65:106.410:21-1.010:093.16:078:19Waxing Crescent26Thu
27Fri4:138.16:136.111:17-0.411:093.56:068:21First Quarter27Fri
28Sat5:107.47:196.012:200.16:048:22First Quarter28Sat
29Sun6:196.78:256.112:213.71:280.56:038:23First Quarter29Sun
30Mon7:386.29:246.41:413.52:340.76:018:25First Quarter30Mon
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 6:47 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 21% 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 Waning Crescent (21% 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