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 2h 57m 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 - Aug 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:365.25:59-0.35:332.66:068:39Waxing Gibbous1Tue
2Wed1:255.66:47-0.96:292.46:078:38Waxing Gibbous2Wed
3Thu12:327.82:096.07:32-1.47:222.16:088:36Full Moon3Thu
4Fri1:228.12:526.48:16-1.68:121.76:108:35Full Moon4Fri
5Sat2:128.23:346.89:00-1.79:031.46:118:34Full Moon5Sat
6Sun3:038.14:167.09:42-1.59:541.16:128:33Waning Gibbous6Sun
7Mon3:557.84:597.210:26-1.110:490.96:138:31Waning Gibbous7Mon
8Tue4:507.25:437.311:10-0.511:470.86:148:30Waning Gibbous8Tue
9Wed5:486.56:307.311:560.26:158:28Third Quarter9Wed
10Thu6:545.87:207.212:510.712:471.06:168:27Third Quarter10Thu
11Fri8:095.28:157.12:010.61:441.76:178:26Third Quarter11Fri
12Sat9:345.09:157.03:130.42:502.26:188:24Third Quarter12Sat
13Sun10:575.010:157.04:220.14:002.56:198:23Waning Crescent13Sun
14Mon12:055.35:23-0.15:072.66:218:21Waning Crescent14Mon
15Tue12:575.66:16-0.46:052.56:228:20Waning Crescent15Tue
16Wed12:047.11:405.87:02-0.56:552.36:238:18Waning Crescent16Wed
17Thu12:507.22:166.07:42-0.67:382.16:248:17New Moon17Thu
18Fri1:327.22:496.28:18-0.58:171.96:258:15New Moon18Fri
19Sat2:117.13:196.38:51-0.48:531.86:268:14New Moon19Sat
20Sun2:487.03:496.39:22-0.29:301.66:278:12New Moon20Sun
21Mon3:266.84:196.49:520.110:061.56:288:10Waxing Crescent21Mon
22Tue4:036.44:486.410:210.410:451.56:298:09Waxing Crescent22Tue
23Wed4:436.05:196.410:510.911:271.46:318:07Waxing Crescent23Wed
24Thu5:265.65:516.411:231.36:328:06Waxing Crescent24Thu
25Fri6:185.16:286.412:151.411:59 AM1.86:338:04First Quarter25Fri
26Sat7:224.87:146.41:121.312:432.36:348:02First Quarter26Sat
27Sun8:424.68:106.42:181.11:432.76:358:00First Quarter27Sun
28Mon10:064.79:166.63:260.82:572.96:367:59First Quarter28Mon
29Tue11:165.010:216.94:310.34:122.96:377:57Waxing Gibbous29Tue
30Wed12:105.55:28-0.25:182.66:387:55Waxing Gibbous30Wed
31Thu12:566.06:20-0.76:162.16:397:54Waxing Gibbous31Thu
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