Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 3h 03m at 10:00 am (-0.4 ft)
Next high tide : 4:26 pm (7.2 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Nov 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:356.08:125.51:411.52:382.96:515:09First Quarter1Tue
2Wed9:206.39:215.62:361.63:372.46:535:07Waxing Gibbous2Wed
3Thu9:596.710:215.83:261.74:251.76:545:06Waxing Gibbous3Thu
4Fri10:357.211:146.14:121.85:071.06:555:05Waxing Gibbous4Fri
5Sat11:107.64:541.95:480.46:575:04Waxing Gibbous5Sat
6Sun12:036.311:45 AM8.05:352.06:28-0.36:585:02Full Moon6Sun
7Mon12:506.512:218.36:162.17:08-0.86:595:01Full Moon7Mon
8Tue1:366.712:598.56:572.27:50-1.17:005:00Full Moon8Tue
9Wed2:246.71:398.57:392.38:33-1.27:024:59Waning Gibbous9Wed
10Thu3:126.72:248.48:252.59:19-1.17:034:58Waning Gibbous10Thu
11Fri4:036.73:128.19:152.610:09-0.87:044:57Waning Gibbous11Fri
12Sat4:576.64:077.610:122.811:03-0.47:064:56Waning Gibbous12Sat
13Sun5:546.65:117.111:212.87:074:55Third Quarter13Sun
14Mon6:536.86:256.512:010.112:402.77:084:54Third Quarter14Mon
15Tue7:537.07:476.11:020.62:012.37:094:53Third Quarter15Tue
16Wed8:487.39:086.02:051.03:131.67:114:52Waning Crescent16Wed
17Thu9:387.710:206.13:041.44:140.97:124:51Waning Crescent17Thu
18Fri10:238.011:226.24:001.75:060.37:134:50Waning Crescent18Fri
19Sat11:058.24:512.05:52-0.27:154:49Waning Crescent19Sat
20Sun12:166.411:44 AM8.35:382.26:34-0.57:164:48New Moon20Sun
21Mon1:046.512:228.26:212.47:14-0.77:174:47New Moon21Mon
22Tue1:486.612:588.17:022.67:51-0.77:184:47New Moon22Tue
23Wed2:306.51:357.97:422.88:28-0.67:204:46New Moon23Wed
24Thu3:106.52:117.78:212.99:05-0.37:214:45Waxing Crescent24Thu
25Fri3:506.42:487.39:013.19:420.07:224:45Waxing Crescent25Fri
26Sat4:316.33:276.99:443.210:200.37:234:44Waxing Crescent26Sat
27Sun5:136.24:106.510:333.311:010.77:244:44Waxing Crescent27Sun
28Mon5:576.25:016.011:323.311:451.17:254:43First Quarter28Mon
29Tue6:446.36:035.512:403.27:274:43First Quarter29Tue
30Wed7:316.57:195.212:331.51:512.87:284:42First Quarter30Wed
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 1:13 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 12% 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 Waxing Crescent (12% 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