Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 4h 11m at 5:25 am (0.4 ft)
Next high tide : 12:28 pm (4.9 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Nov 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:137.01:458.47:431.88:28-0.96:515:09Waxing Crescent1Tue
2Wed3:016.92:258.08:262.29:10-0.76:535:07Waxing Crescent2Wed
3Thu3:486.63:057.69:092.59:53-0.36:545:06Waxing Crescent3Thu
4Fri4:376.43:487.19:562.810:390.26:555:05Waxing Crescent4Fri
5Sat5:286.14:356.610:493.111:280.66:575:03First Quarter5Sat
6Sun6:226.05:306.111:533.36:585:02First Quarter6Sun
7Mon7:196.06:365.712:221.11:073.26:595:01First Quarter7Mon
8Tue8:156.17:515.41:191.42:212.97:015:00First Quarter8Tue
9Wed9:036.49:025.42:161.63:232.57:024:59Waxing Gibbous9Wed
10Thu9:456.710:055.63:091.84:131.97:034:58Waxing Gibbous10Thu
11Fri10:237.010:595.83:561.94:561.37:044:56Waxing Gibbous11Fri
12Sat10:577.411:476.14:402.05:360.77:064:55Waxing Gibbous12Sat
13Sun11:317.75:202.16:130.27:074:54Full Moon13Sun
14Mon12:326.312:058.05:592.26:51-0.37:084:53Full Moon14Mon
15Tue1:166.512:408.26:382.37:29-0.67:104:52Full Moon15Tue
16Wed1:596.61:178.37:182.48:08-0.97:114:52Full Moon16Wed
17Thu2:446.71:578.37:592.58:50-0.97:124:51Waning Gibbous17Thu
18Fri3:316.72:408.18:442.69:34-0.87:134:50Waning Gibbous18Fri
19Sat4:206.73:287.89:342.810:22-0.57:154:49Waning Gibbous19Sat
20Sun5:126.74:237.310:332.911:15-0.17:164:48Third Quarter20Sun
21Mon6:086.75:296.811:432.87:174:47Third Quarter21Mon
22Tue7:066.96:466.312:130.31:022.67:184:47Third Quarter22Tue
23Wed8:037.28:086.01:140.82:192.07:204:46Third Quarter23Wed
24Thu8:577.69:286.02:161.23:281.37:214:45Waning Crescent24Thu
25Fri9:488.010:376.23:161.54:270.67:224:45Waning Crescent25Fri
26Sat10:348.311:386.44:121.85:190.07:234:44Waning Crescent26Sat
27Sun11:188.55:052.06:06-0.57:244:44New Moon27Sun
28Mon12:326.611:59 AM8.65:532.26:50-0.87:264:43New Moon28Mon
29Tue1:206.712:408.56:392.37:31-0.97:274:43New Moon29Tue
30Wed2:066.81:208.37:232.58:10-0.87:284:42New Moon30Wed
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 8:56 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 82% 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 Waxing Gibbous (82% 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