Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 4h 39m at 9:38 pm (2.0 ft)
Next high tide (tomorrow) : 3:28 am (6.8 ft)
Sunset today : 8:40 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Jul 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:497.95:316.510:44-1.710:522.15:409:01Waning Gibbous1Thu
2Fri4:447.46:196.611:32-1.311:542.05:419:01Waning Gibbous2Fri
3Sat5:436.87:096.812:21-0.75:429:00Third Quarter3Sat
4Sun6:496.18:006.91:041.71:130.05:429:00Third Quarter4Sun
5Mon8:045.48:527.12:181.42:080.75:439:00Third Quarter5Mon
6Tue9:255.09:437.23:300.93:061.35:448:59Third Quarter6Tue
7Wed10:474.910:337.34:360.34:051.85:448:59Waning Crescent7Wed
8Thu12:005.15:34-0.25:042.25:458:59Waning Crescent8Thu
9Fri1:015.36:26-0.65:592.45:468:58Waning Crescent9Fri
10Sat12:067.51:525.57:11-0.96:502.55:478:58New Moon10Sat
11Sun12:497.42:355.77:53-1.07:362.55:478:57New Moon11Sun
12Mon1:307.43:155.88:31-1.18:192.55:488:56New Moon12Mon
13Tue2:107.33:515.89:08-1.08:592.55:498:56New Moon13Tue
14Wed2:487.14:265.99:43-0.99:382.55:508:55Waxing Crescent14Wed
15Thu3:266.95:015.910:17-0.610:192.45:518:55Waxing Crescent15Thu
16Fri4:046.65:355.910:50-0.311:012.45:528:54Waxing Crescent16Fri
17Sat4:446.26:106.011:240.111:492.35:528:53Waxing Crescent17Sat
18Sun5:285.76:466.011:590.55:538:52First Quarter18Sun
19Mon6:195.27:246.112:442.212:361.05:548:52First Quarter19Mon
20Tue7:224.78:066.31:451.91:191.55:558:51First Quarter20Tue
21Wed8:404.48:526.52:491.52:091.95:568:50First Quarter21Wed
22Thu10:034.49:416.83:521.03:072.35:578:49Waxing Gibbous22Thu
23Fri11:184.610:337.14:510.44:102.55:588:48Waxing Gibbous23Fri
24Sat12:215.05:45-0.35:122.65:598:47Waxing Gibbous24Sat
25Sun1:155.46:35-0.96:112.56:008:46Waxing Gibbous25Sun
26Mon12:167.92:035.87:23-1.57:062.36:018:45Full Moon26Mon
27Tue1:088.22:486.28:09-1.87:592.06:028:44Full Moon27Tue
28Wed1:598.43:326.68:54-2.08:511.76:038:43Full Moon28Wed
29Thu2:508.34:156.89:38-1.89:441.56:048:42Waning Gibbous29Thu
30Fri3:438.04:597.010:22-1.510:391.26:058:40Waning Gibbous30Fri
31Sat4:377.45:437.211:06-0.911:381.16:068:39Waning 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 12:33 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 95% 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 Gibbous (95% 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