Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 2h 36m at 7:17 am (-1.5 ft)
Next high tide : 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 - Mar 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:037.03:566.99:561.610:090.87:537:05Waning Gibbous1Thu
2Fri4:317.04:346.510:331.510:371.27:517:06Waning Gibbous2Fri
3Sat4:596.95:156.011:121.411:061.77:497:08Waning Gibbous3Sat
4Sun5:286.96:025.611:551.411:382.27:487:09Waning Gibbous4Sun
5Mon6:016.77:005.112:461.47:467:10Third Quarter5Mon
6Tue6:416.68:164.812:152.71:481.47:447:11Third Quarter6Tue
7Wed7:336.69:444.81:063.12:571.27:427:13Third Quarter7Wed
8Thu8:406.611:025.12:203.44:070.97:417:14Third Quarter8Thu
9Fri9:526.811:585.53:443.55:080.47:397:15Waning Crescent9Fri
10Sat10:587.24:583.26:01-0.17:377:16Waning Crescent10Sat
11Sun12:436.011:57 AM7.65:582.76:48-0.57:357:18Waning Crescent11Sun
12Mon1:226.612:518.06:512.17:32-0.77:347:19New Moon12Mon
13Tue2:007.11:438.27:401.48:13-0.77:327:20New Moon13Tue
14Wed2:377.52:348.28:280.88:54-0.67:307:21New Moon14Wed
15Thu3:157.93:258.09:160.39:34-0.27:287:22Waxing Crescent15Thu
16Fri3:538.14:187.610:05-0.110:150.47:277:24Waxing Crescent16Fri
17Sat4:338.25:137.010:56-0.210:581.17:257:25Waxing Crescent17Sat
18Sun5:168.16:146.311:51-0.211:461.87:237:26Waxing Crescent18Sun
19Mon6:027.77:225.812:520.07:217:27First Quarter19Mon
20Tue6:567.38:435.412:412.52:010.37:197:28First Quarter20Tue
21Wed8:016.910:105.51:523.03:150.47:187:30First Quarter21Wed
22Thu9:156.611:235.73:163.24:260.47:167:31Waxing Gibbous22Thu
23Fri10:286.64:363.05:280.47:147:32Waxing Gibbous23Fri
24Sat12:156.011:31 AM6.75:412.76:180.37:127:33Waxing Gibbous24Sat
25Sun12:556.312:246.86:322.37:000.37:107:34Waxing Gibbous25Sun
26Mon1:286.51:096.97:141.87:360.47:097:36Full Moon26Mon
27Tue1:576.71:506.97:511.58:080.57:077:37Full Moon27Tue
28Wed2:256.92:286.98:261.18:380.77:057:38Full Moon28Wed
29Thu2:517.03:066.78:590.89:061.07:037:39Full Moon29Thu
30Fri3:177.13:436.59:320.69:341.47:017:40Full Moon30Fri
31Sat3:447.14:226.210:060.510:021.87:007:41Waning Gibbous31Sat
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 10:37 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 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