Tides Today & Tomorrow in Columbia River entrance, WA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Columbia River entrance, WA.
Next low tide (tomorrow) : 1:43 am (1.0 ft)
Next high tide : in 56m at 6:57 pm (7.0 ft)
Sunset today : 8:59 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9440574
Common Questions About Tides

Columbia River entrance, WA Tides - Aug 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:557.44:537.310:13-0.910:450.95:588:46Waxing Crescent1Wed
2Thu4:536.65:367.410:55-0.111:450.85:598:45First Quarter2Thu
3Fri5:585.86:237.411:410.86:008:43First Quarter3Fri
4Sat7:125.27:147.412:520.612:351.76:028:42First Quarter4Sat
5Sun8:324.98:117.42:050.41:382.46:038:40First Quarter5Sun
6Mon9:505.09:117.43:160.02:472.96:048:39Waxing Gibbous6Mon
7Tue10:595.410:097.44:20-0.33:533.06:058:38Waxing Gibbous7Tue
8Wed11:555.811:047.55:16-0.74:532.96:078:36Waxing Gibbous8Wed
9Thu12:436.16:04-0.95:462.76:088:34Full Moon9Thu
10Fri1:256.36:47-0.96:342.56:098:33Full Moon10Fri
11Sat12:387.42:036.47:25-0.97:182.26:108:31Full Moon11Sat
12Sun1:207.32:376.47:59-0.87:592.06:128:30Full Moon12Sun
13Mon1:597.13:086.48:30-0.68:371.86:138:28Waning Gibbous13Mon
14Tue2:376.83:366.48:58-0.39:141.66:148:27Waning Gibbous14Tue
15Wed3:156.44:016.49:240.19:511.46:158:25Waning Gibbous15Wed
16Thu3:555.94:266.59:500.610:291.46:178:23Waning Gibbous16Thu
17Fri4:395.44:536.510:181.111:121.36:188:21Waning Gibbous17Fri
18Sat5:334.95:256.610:521.86:198:20Third Quarter18Sat
19Sun6:404.46:076.612:061.311:35 AM2.56:208:18Third Quarter19Sun
20Mon8:034.37:016.61:151.212:353.16:228:16Third Quarter20Mon
21Tue9:274.48:086.72:320.91:533.56:238:15Waning Crescent21Tue
22Wed10:364.99:197.03:410.43:123.56:248:13Waning Crescent22Wed
23Thu11:325.410:257.44:41-0.34:203.26:258:11Waning Crescent23Thu
24Fri12:185.95:33-0.95:182.76:278:09Waning Crescent24Fri
25Sat1:006.36:20-1.36:122.06:288:07New Moon25Sat
26Sun12:198.11:396.77:04-1.67:041.36:298:06New Moon26Sun
27Mon1:118.22:177.17:45-1.67:540.76:318:04New Moon27Mon
28Tue2:038.02:547.48:25-1.48:430.26:328:02Waxing Crescent28Tue
29Wed2:557.63:327.69:04-0.99:33-0.16:338:00Waxing Crescent29Wed
30Thu3:497.04:117.79:43-0.210:25-0.26:347:58Waxing Crescent30Thu
31Fri4:466.34:527.710:240.711:21-0.16:367:56First Quarter31Fri
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 10:20 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 First 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