Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 7:08 pm (2.1 ft)
Next high tide : in 5h 41m at 1:57 pm (6.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Nov 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:427.42:288.88:211.39:07-1.27:526:08Full Moon1Wed
2Thu3:357.23:088.69:051.79:53-1.27:536:07Waning Gibbous2Thu
3Fri4:277.03:508.39:502.210:40-0.97:556:05Waning Gibbous3Fri
4Sat5:216.74:357.810:382.611:29-0.57:566:04Waning Gibbous4Sat
5Sun6:186.45:237.211:323.17:576:03Waning Gibbous5Sun
6Mon7:196.16:196.512:230.012:373.37:596:02Third Quarter6Mon
7Tue8:256.17:266.01:220.51:553.48:006:00Third Quarter7Tue
8Wed9:286.18:415.72:250.93:163.28:015:59Third Quarter8Wed
9Thu10:216.49:565.63:261.24:232.88:025:58Third Quarter9Thu
10Fri11:036.611:005.74:201.45:162.38:045:57Waning Crescent10Fri
11Sat11:386.911:545.95:081.66:001.78:055:56Waning Crescent11Sat
12Sun12:107.25:491.76:381.28:065:55Waning Crescent12Sun
13Mon12:416.112:407.46:261.87:140.78:085:54Waning Crescent13Mon
14Tue1:256.21:097.77:022.07:480.28:095:53New Moon14Tue
15Wed2:066.41:397.87:362.28:22-0.18:105:52New Moon15Wed
16Thu2:486.42:097.98:102.48:57-0.48:115:51New Moon16Thu
17Fri3:306.42:417.98:442.69:34-0.58:135:50New Moon17Fri
18Sat4:136.43:157.89:212.910:13-0.58:145:49Waxing Crescent18Sat
19Sun4:596.33:537.710:013.110:56-0.48:155:49Waxing Crescent19Sun
20Mon5:496.24:377.410:483.311:44-0.28:165:48Waxing Crescent20Mon
21Tue6:446.25:317.011:473.48:185:47First Quarter21Tue
22Wed7:426.36:396.612:390.11:013.48:195:46First Quarter22Wed
23Thu8:416.58:006.31:390.42:243.18:205:46First Quarter23Thu
24Fri9:376.99:256.12:420.73:412.48:215:45First Quarter24Fri
25Sat10:267.410:426.23:420.94:471.68:235:45Waxing Gibbous25Sat
26Sun11:128.011:506.54:401.25:440.78:245:44Waxing Gibbous26Sun
27Mon11:558.45:331.46:35-0.18:255:43Waxing Gibbous27Mon
28Tue12:516.712:378.76:231.77:23-0.88:265:43Full Moon28Tue
29Wed1:466.91:198.97:121.98:08-1.28:275:43Full Moon29Wed
30Thu2:397.02:008.97:582.28:52-1.38:285:42Full Moon30Thu
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 4:32 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 1% 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 New Moon (1% 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