Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 3:42 pm (3.0 ft)
Next high tide : in 3m at 11:19 am (4.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Nov 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:506.810:576.04:181.35:041.76:525:08Waxing Gibbous1Tue
2Wed11:197.111:456.14:571.55:431.26:535:07Waxing Gibbous2Wed
3Thu11:457.35:321.76:180.76:545:06Full Moon3Thu
4Fri12:286.212:117.56:042.06:510.26:565:04Full Moon4Fri
5Sat1:106.212:377.66:362.37:24-0.16:575:03Full Moon5Sat
6Sun1:506.21:037.77:062.67:56-0.36:585:02Full Moon6Sun
7Mon2:316.11:307.67:372.98:30-0.37:005:01Full Moon7Mon
8Tue3:136.01:597.68:083.29:07-0.37:015:00Waning Gibbous8Tue
9Wed3:585.92:327.48:423.49:48-0.27:024:58Waning Gibbous9Wed
10Thu4:475.73:107.29:203.610:340.07:034:57Waning Gibbous10Thu
11Fri5:425.63:586.910:103.811:270.37:054:56Third Quarter11Fri
12Sat6:435.64:596.611:223.97:064:55Third Quarter12Sat
13Sun7:425.96:196.212:270.512:513.77:074:54Third Quarter13Sun
14Mon8:346.37:486.11:280.72:153.17:094:53Third Quarter14Mon
15Tue9:186.99:106.12:270.83:242.27:104:52Waning Crescent15Tue
16Wed9:587.510:226.33:211.14:221.27:114:51Waning Crescent16Wed
17Thu10:378.111:266.54:121.35:130.27:124:50Waning Crescent17Thu
18Fri11:168.65:001.66:02-0.77:144:50New Moon18Fri
19Sat12:246.711:56 AM9.05:472.06:49-1.47:154:49New Moon19Sat
20Sun1:206.812:379.16:342.37:35-1.77:164:48New Moon20Sun
21Mon2:146.81:209.17:212.68:22-1.77:174:47New Moon21Mon
22Tue3:076.82:058.78:092.99:10-1.57:194:47Waxing Crescent22Tue
23Wed4:016.62:538.38:593.19:59-1.07:204:46Waxing Crescent23Wed
24Thu4:556.43:437.79:543.410:50-0.47:214:45Waxing Crescent24Thu
25Fri5:516.34:397.010:583.511:450.27:224:45First Quarter25Fri
26Sat6:496.35:436.312:143.57:244:44First Quarter26Sat
27Sun7:466.46:565.812:410.81:353.27:254:44First Quarter27Sun
28Mon8:356.68:155.41:371.32:482.87:264:43First Quarter28Mon
29Tue9:176.89:305.32:301.73:472.27:274:43Waxing Gibbous29Tue
30Wed9:537.110:355.43:192.14:351.57:284:42Waxing 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 1:30 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 transitional phase. Tonight's moon is 21% 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 shifting between spring and neap.

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 (21% illuminated). This places Coos Bay, OR in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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