Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Columbia River entrance, WA.
Next low tide : in 1h 29m at 12:09 am (2.1 ft)
Next high tide : 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 - Sep 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:217.31:286.76:56-0.86:581.56:377:54Full Moon1Tue
2Wed1:047.22:026.77:31-0.67:391.26:397:52Full Moon2Wed
3Thu1:457.02:336.78:02-0.48:171.06:407:50Full Moon3Thu
4Fri2:246.73:006.78:310.08:530.86:417:48Waning Gibbous4Fri
5Sat3:036.43:256.78:580.59:280.86:427:46Waning Gibbous5Sat
6Sun3:436.03:496.79:251.010:030.86:447:44Waning Gibbous6Sun
7Mon4:265.54:146.79:531.510:420.96:457:42Waning Gibbous7Mon
8Tue5:165.14:456.610:262.111:291.06:467:40Third Quarter8Tue
9Wed6:184.75:256.511:082.86:477:38Third Quarter9Wed
10Thu7:344.56:206.312:311.112:073.36:497:36Third Quarter10Thu
11Fri8:544.67:306.21:491.11:283.66:507:34Third Quarter11Fri
12Sat10:035.08:496.43:030.72:503.56:517:32Waning Crescent12Sat
13Sun10:575.59:596.84:050.23:573.16:527:30Waning Crescent13Sun
14Mon11:416.011:007.24:57-0.44:552.46:547:28Waning Crescent14Mon
15Tue12:216.55:43-0.85:461.66:557:27Waning Crescent15Tue
16Wed12:586.96:26-1.06:360.96:567:25New Moon16Wed
17Thu12:477.81:347.47:07-1.17:230.26:577:23New Moon17Thu
18Fri1:377.82:107.77:47-0.88:11-0.46:597:21New Moon18Fri
19Sat2:287.62:478.08:26-0.48:59-0.77:007:19Waxing Crescent19Sat
20Sun3:217.23:258.19:060.29:48-0.87:017:17Waxing Crescent20Sun
21Mon4:166.64:068.09:481.010:41-0.67:037:15Waxing Crescent21Mon
22Tue5:176.04:527.710:351.811:41-0.27:047:13First Quarter22Tue
23Wed6:265.65:477.211:312.67:057:11First Quarter23Wed
24Thu7:415.36:536.712:510.112:423.17:067:09First Quarter24Thu
25Fri8:575.48:106.52:070.32:023.37:087:07First Quarter25Fri
26Sat10:045.89:246.43:180.23:172.97:097:05Waxing Gibbous26Sat
27Sun10:576.210:296.64:170.04:202.47:107:03Waxing Gibbous27Sun
28Mon11:416.611:236.85:05-0.15:121.87:117:01Waxing Gibbous28Mon
29Tue12:186.95:46-0.15:581.27:136:59Waxing Gibbous29Tue
30Wed12:096.912:517.06:220.06:390.87:146:57Full Moon30Wed
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