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 3h 40m at 2:08 am (0.8 ft)
Next high tide : 8:40 am (4.4 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Nov 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:086.63:168.49:152.610:19-1.16:525:08Waning Gibbous1Thu
2Fri5:096.34:087.910:103.111:18-0.66:535:07Waning Gibbous2Fri
3Sat6:166.25:117.211:193.46:545:06Third Quarter3Sat
4Sun7:286.16:266.712:24-0.112:443.46:565:04Third Quarter4Sun
5Mon8:366.37:496.31:330.32:133.16:575:03Third Quarter5Mon
6Tue9:336.79:096.22:380.63:282.66:585:02Waning Crescent6Tue
7Wed10:187.010:176.23:360.94:271.97:005:01Waning Crescent7Wed
8Thu10:557.311:146.34:261.15:151.37:014:59Waning Crescent8Thu
9Fri11:287.65:081.45:570.77:024:58Waning Crescent9Fri
10Sat12:046.311:58 AM7.75:461.76:340.37:044:57New Moon10Sat
11Sun12:496.412:267.86:212.17:080.07:054:56New Moon11Sun
12Mon1:316.412:547.86:552.47:41-0.27:064:55New Moon12Mon
13Tue2:126.31:217.77:272.78:14-0.37:074:54New Moon13Tue
14Wed2:526.21:507.67:593.08:49-0.37:094:53Waxing Crescent14Wed
15Thu3:346.12:207.48:323.29:25-0.17:104:52Waxing Crescent15Thu
16Fri4:175.92:537.19:073.510:050.17:114:51Waxing Crescent16Fri
17Sat5:055.83:316.99:483.710:490.47:134:50Waxing Crescent17Sat
18Sun5:595.74:176.510:413.911:400.67:144:50First Quarter18Sun
19Mon6:565.75:176.211:533.97:154:49First Quarter19Mon
20Tue7:526.06:355.912:370.91:183.77:164:48First Quarter20Tue
21Wed8:406.38:005.81:351.02:333.17:184:47First Quarter21Wed
22Thu9:226.89:185.92:311.23:342.37:194:46Waxing Gibbous22Thu
23Fri10:017.410:266.13:231.34:271.37:204:46Waxing Gibbous23Fri
24Sat10:388.011:276.44:131.55:160.47:214:45Waxing Gibbous24Sat
25Sun11:168.55:001.76:02-0.57:224:45Full Moon25Sun
26Mon12:246.711:56 AM8.95:472.06:49-1.37:244:44Full Moon26Mon
27Tue1:196.912:389.26:342.27:36-1.77:254:44Full Moon27Tue
28Wed2:136.91:229.27:222.58:23-1.87:264:43Full Moon28Wed
29Thu3:066.92:099.08:112.79:12-1.77:274:43Waning Gibbous29Thu
30Fri4:016.83:008.69:042.910:04-1.37:284:42Waning Gibbous30Fri
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 5:24 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 neap phase. Tonight's moon is 47% 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 (47% 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