Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 1h 13m at 1:21 pm (3.0 ft)
Next high tide : 7:46 pm (6.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Dec 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:397.411:275.84:152.15:201.17:294:42Waning Crescent1Wed
2Thu11:117.74:562.35:580.57:304:42Waning Crescent2Thu
3Fri12:156.011:44 AM7.95:362.56:34-0.17:314:41New Moon3Fri
4Sat1:006.212:178.16:152.67:11-0.57:324:41New Moon4Sat
5Sun1:446.412:528.36:542.77:49-0.87:334:41New Moon5Sun
6Mon2:286.51:298.37:332.98:29-0.97:344:41New Moon6Mon
7Tue3:146.52:098.38:153.09:11-0.97:354:41Waxing Crescent7Tue
8Wed4:016.52:538.09:013.19:56-0.87:364:41Waxing Crescent8Wed
9Thu4:506.63:437.79:553.210:45-0.57:374:41Waxing Crescent9Thu
10Fri5:426.64:417.210:583.211:380.07:384:41First Quarter10Fri
11Sat6:376.85:516.612:143.17:394:41First Quarter11Sat
12Sun7:327.07:126.112:350.51:342.67:404:41First Quarter12Sun
13Mon8:257.48:375.91:350.92:491.97:404:41First Quarter13Mon
14Tue9:167.89:555.92:351.43:541.17:414:41Waxing Gibbous14Tue
15Wed10:038.211:046.13:331.84:500.37:424:41Waxing Gibbous15Wed
16Thu10:478.54:282.15:40-0.37:434:41Waxing Gibbous16Thu
17Fri12:056.411:30 AM8.75:202.46:26-0.87:434:42Full Moon17Fri
18Sat12:586.612:128.76:092.67:10-1.17:444:42Full Moon18Sat
19Sun1:476.712:548.66:562.77:51-1.17:454:42Full Moon19Sun
20Mon2:336.81:348.37:412.98:32-1.07:454:43Full Moon20Mon
21Tue3:176.72:158.08:253.09:11-0.77:464:43Waning Gibbous21Tue
22Wed3:596.72:557.69:093.19:51-0.37:464:44Waning Gibbous22Wed
23Thu4:416.63:377.19:553.210:300.27:474:44Waning Gibbous23Thu
24Fri5:246.54:226.610:473.311:120.77:474:45Waning Gibbous24Fri
25Sat6:076.45:136.011:473.311:551.27:474:45Third Quarter25Sat
26Sun6:526.56:155.512:553.17:484:46Third Quarter26Sun
27Mon7:386.67:305.112:421.62:042.87:484:47Third Quarter27Mon
28Tue8:226.88:505.01:322.13:062.27:484:47Third Quarter28Tue
29Wed9:067.110:035.12:242.44:001.67:494:48Waning Crescent29Wed
30Thu9:477.411:055.43:172.74:471.07:494:49Waning Crescent30Thu
31Fri10:277.74:092.95:300.37:494:50Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9432845)

Common Questions About Coos Bay, OR Tides

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What time does the tide turn (slack tide) in Coos Bay, OR today?

Slack tide in Coos Bay, OR is approximately 4:33 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 Coos Bay, OR?

Coos Bay, OR is currently in a neap phase. Tonight's moon is 56% 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 Coos Bay, OR 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 Coos Bay, OR?

Tide predictions for Coos Bay, OR 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 Coos Bay, OR?

Tide data for Coos Bay, OR is sourced from NOAA Station #9432845. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9432845.

What is the moon phase in Coos Bay, OR tonight?

Tonight the moon over Coos Bay, OR is First Quarter (56% illuminated). This places Coos Bay, OR 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