Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 5h 54m at 6:27 am (-1.2 ft)
Next high tide : 1:13 pm (5.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Apr 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:446.911:206.43:512.84:38-0.15:596:42Waxing Gibbous1Tue
2Wed10:507.14:552.25:29-0.25:576:43Waxing Gibbous2Wed
3Thu12:006.911:47 AM7.35:491.56:12-0.15:556:44Waxing Gibbous3Thu
4Fri12:357.312:387.36:360.86:520.25:536:46Full Moon4Fri
5Sat1:097.51:267.27:190.37:280.55:526:47Full Moon5Sat
6Sun1:417.72:126.97:590.08:031.05:506:48Full Moon6Sun
7Mon2:127.72:576.68:38-0.28:361.55:486:49Waning Gibbous7Mon
8Tue2:427.53:426.29:17-0.29:102.05:466:50Waning Gibbous8Tue
9Wed3:137.34:285.89:57-0.19:442.55:456:51Waning Gibbous9Wed
10Thu3:447.05:195.410:390.210:213.05:436:53Waning Gibbous10Thu
11Fri4:206.66:195.111:280.511:083.45:416:54Third Quarter11Fri
12Sat5:036.27:324.912:260.85:406:55Third Quarter12Sat
13Sun6:025.98:505.012:153.61:341.05:386:56Third Quarter13Sun
14Mon7:195.79:515.21:433.62:411.05:366:57Third Quarter14Mon
15Tue8:385.710:325.63:043.33:390.95:356:58Waning Crescent15Tue
16Wed9:455.911:066.04:062.94:270.85:337:00Waning Crescent16Wed
17Thu10:426.211:366.54:542.35:080.75:317:01Waning Crescent17Thu
18Fri11:326.45:361.65:450.75:307:02Waning Crescent18Fri
19Sat12:066.912:206.66:160.86:210.85:287:03New Moon19Sat
20Sun12:367.31:076.76:560.16:571.05:267:04New Moon20Sun
21Mon1:067.71:556.77:36-0.57:331.35:257:06New Moon21Mon
22Tue1:397.92:446.68:18-0.98:111.75:237:07New Moon22Tue
23Wed2:148.13:366.39:02-1.28:512.15:227:08Waxing Crescent23Wed
24Thu2:538.04:326.09:50-1.29:362.55:207:09Waxing Crescent24Thu
25Fri3:387.85:345.810:44-1.010:312.95:197:10Waxing Crescent25Fri
26Sat4:307.46:445.611:45-0.711:403.15:177:11First Quarter26Sat
27Sun5:356.97:575.712:53-0.35:167:13First Quarter27Sun
28Mon6:546.49:045.91:073.12:03-0.15:147:14First Quarter28Mon
29Tue8:186.29:586.42:352.83:080.15:137:15Waxing Gibbous29Tue
30Wed9:366.210:436.83:492.14:050.35:117:16Waxing Gibbous30Wed
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 9:50 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 Coos Bay, OR?

Coos Bay, OR is currently in a spring phase. Tonight's moon is 5% 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 maximum.

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 Waning Crescent (5% illuminated). This places Coos Bay, OR in a spring tide cycle, so tidal ranges are near their weekly maximum 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