Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 2h 16m at 5:01 pm (2.9 ft)
Next high tide : 11:11 pm (7.7 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:466.91:577.47:440.88:160.26:135:59Full Moon1Wed
2Thu2:296.72:257.68:151.28:550.06:145:57Waning Gibbous2Thu
3Fri3:156.42:567.68:481.79:39-0.26:165:56Waning Gibbous3Fri
4Sat4:066.03:327.69:242.210:28-0.26:175:54Waning Gibbous4Sat
5Sun5:055.64:147.410:062.711:26-0.16:185:52Third Quarter5Sun
6Mon6:165.35:097.111:013.26:195:50Third Quarter6Mon
7Tue7:385.36:226.812:350.112:203.56:205:48Third Quarter7Tue
8Wed8:575.57:486.71:500.11:553.46:215:47Third Quarter8Wed
9Thu9:596.09:096.83:010.13:182.96:235:45Waning Crescent9Thu
10Fri10:476.510:197.14:030.04:252.26:245:43Waning Crescent10Fri
11Sat11:277.011:197.34:550.05:201.56:255:42Waning Crescent11Sat
12Sun12:047.55:410.16:090.76:265:40New Moon12Sun
13Mon12:137.312:397.86:230.36:540.16:275:38New Moon13Mon
14Tue1:047.31:138.07:010.77:37-0.36:295:36New Moon14Tue
15Wed1:537.11:468.17:391.28:18-0.56:305:35New Moon15Wed
16Thu2:406.82:197.98:151.78:59-0.56:315:33Waxing Crescent16Thu
17Fri3:286.52:527.68:512.39:40-0.36:325:32Waxing Crescent17Fri
18Sat4:176.13:267.29:292.810:240.06:335:30Waxing Crescent18Sat
19Sun5:115.74:036.810:103.211:130.46:355:28Waxing Crescent19Sun
20Mon6:125.44:496.411:023.66:365:27First Quarter20Mon
21Tue7:245.35:496.012:110.812:153.86:375:25First Quarter21Tue
22Wed8:385.47:075.71:181.11:453.86:385:24First Quarter22Wed
23Thu9:355.68:275.72:241.13:033.46:405:22First Quarter23Thu
24Fri10:156.09:345.93:211.14:002.96:415:20Waxing Gibbous24Fri
25Sat10:476.410:306.14:081.14:452.36:425:19Waxing Gibbous25Sat
26Sun11:166.811:196.44:481.15:251.76:435:17Waxing Gibbous26Sun
27Mon11:457.25:251.16:031.06:455:16Waxing Gibbous27Mon
28Tue12:056.612:137.65:591.36:400.36:465:15Full Moon28Tue
29Wed12:506.712:427.96:331.57:17-0.26:475:13Full Moon29Wed
30Thu1:366.71:138.27:081.87:56-0.76:495:12Full Moon30Thu
31Fri2:246.61:468.37:452.18:38-0.96:505:10Waning Gibbous31Fri
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 8:06 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 spring phase. Tonight's moon is 12% 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 (12% 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