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 (tomorrow) : 12:46 am (0.7 ft)
Next high tide : in 1h 36m at 5:50 pm (7.5 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 - Apr 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:207.510:357.13:132.53:56-0.15:556:44Waning Crescent1Sun
2Mon10:237.811:187.74:121.74:45-0.35:546:45Waning Crescent2Mon
3Tue11:208.111:598.25:070.85:31-0.35:526:47New Moon3Tue
4Wed12:148.15:580.16:15-0.15:506:48New Moon4Wed
5Thu12:388.51:068.06:48-0.46:570.35:486:49New Moon5Thu
6Fri1:188.61:587.77:36-0.77:390.85:466:51Waxing Crescent6Fri
7Sat1:578.62:517.38:23-0.78:221.45:446:52Waxing Crescent7Sat
8Sun2:378.43:456.89:11-0.59:062.15:426:53Waxing Crescent8Sun
9Mon3:198.04:436.310:020.09:542.75:406:55Waxing Crescent9Mon
10Tue4:067.45:466.010:580.510:523.35:386:56First Quarter10Tue
11Wed5:006.86:535.812:020.95:366:57First Quarter11Wed
12Thu6:076.37:595.912:023.61:091.15:356:59First Quarter12Thu
13Fri7:216.18:576.21:173.52:121.15:337:00First Quarter13Fri
14Sat8:326.19:456.62:253.13:051.05:317:01Waxing Gibbous14Sat
15Sun9:326.210:266.93:222.53:490.95:297:03Waxing Gibbous15Sun
16Mon10:236.411:017.24:111.94:290.95:277:04Waxing Gibbous16Mon
17Tue11:096.611:337.44:541.35:051.05:257:05Waxing Gibbous17Tue
18Wed11:526.75:350.95:391.25:247:07Full Moon18Wed
19Thu12:017.512:326.76:120.56:121.45:227:08Full Moon19Thu
20Fri12:287.61:136.66:480.26:451.75:207:09Full Moon20Fri
21Sat12:557.71:536.67:230.07:172.05:187:11Full Moon21Sat
22Sun1:227.92:356.47:57-0.17:512.45:177:12Waning Gibbous22Sun
23Mon1:527.93:196.28:33-0.18:272.75:157:13Waning Gibbous23Mon
24Tue2:287.94:106.09:130.09:103.05:137:15Waning Gibbous24Tue
25Wed3:107.75:075.810:010.210:033.35:127:16Third Quarter25Wed
26Thu4:037.46:125.811:010.411:133.55:107:17Third Quarter26Thu
27Fri5:107.07:176.012:110.55:087:19Third Quarter27Fri
28Sat6:316.78:186.412:363.31:220.55:077:20Third Quarter28Sat
29Sun8:536.710:117.02:532.73:250.46:058:21Waning Crescent29Sun
30Mon10:076.910:587.63:591.84:200.36:038:23Waning Crescent30Mon
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 9:18 pm — 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