Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide (tomorrow) : in 5h 43m at 2:08 am (0.8 ft)
Next high tide (tomorrow) : 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 - Feb 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:367.17:324.91:311.77:325:28Third Quarter1Fri
2Sat7:226.99:054.712:462.82:391.47:315:29Third Quarter2Sat
3Sun8:146.910:364.91:453.33:421.17:305:31Waning Crescent3Sun
4Mon9:106.911:385.22:553.64:380.87:295:32Waning Crescent4Mon
5Tue10:047.04:023.75:260.47:285:33Waning Crescent5Tue
6Wed12:215.510:53 AM7.35:003.66:070.17:275:35Waning Crescent6Wed
7Thu12:565.811:38 AM7.55:473.46:45-0.27:255:36New Moon7Thu
8Fri1:276.112:207.76:293.17:19-0.47:245:37New Moon8Fri
9Sat1:576.312:597.87:082.97:51-0.47:235:39New Moon9Sat
10Sun2:276.61:387.87:462.68:22-0.47:225:40New Moon10Sun
11Mon2:576.82:187.78:252.38:53-0.27:205:41Waxing Crescent11Mon
12Tue3:277.03:007.39:062.09:250.27:195:43Waxing Crescent12Tue
13Wed3:577.23:466.89:511.79:580.77:175:44Waxing Crescent13Wed
14Thu4:297.44:396.210:411.410:341.37:165:45Waxing Crescent14Thu
15Fri5:057.55:425.611:391.211:152.07:155:47First Quarter15Fri
16Sat5:477.57:035.112:460.97:135:48First Quarter16Sat
17Sun6:407.58:385.012:062.72:010.67:125:49First Quarter17Sun
18Mon7:457.610:105.21:153.23:150.27:105:51Waxing Gibbous18Mon
19Tue8:577.711:185.72:403.54:23-0.27:095:52Waxing Gibbous19Tue
20Wed10:077.94:013.35:21-0.67:075:53Waxing Gibbous20Wed
21Thu12:096.211:09 AM8.25:093.06:12-0.97:065:55Waxing Gibbous21Thu
22Fri12:526.612:058.36:072.56:57-1.07:045:56Full Moon22Fri
23Sat1:317.012:568.36:582.07:38-0.97:035:57Full Moon23Sat
24Sun2:077.31:448.17:451.68:16-0.67:015:59Full Moon24Sun
25Mon2:427.52:317.88:301.38:51-0.16:596:00Waning Gibbous25Mon
26Tue3:167.53:167.29:141.19:250.56:586:01Waning Gibbous26Tue
27Wed3:487.54:026.69:581.09:591.26:566:02Waning Gibbous27Wed
28Thu4:217.44:515.910:451.010:321.96:546:04Waning Gibbous28Thu
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