Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide (tomorrow) : 6:12 am (0.2 ft)
Next high tide : in 4h 26m at 10:57 pm (6.4 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - May 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:456.26:27-0.26:211.65:097:18Full Moon1Sat
2Sun12:267.51:296.27:05-0.56:591.85:087:19Full Moon2Sun
3Mon12:597.52:106.27:42-0.67:352.05:067:20Full Moon3Mon
4Tue1:327.42:506.18:17-0.68:102.25:057:21Full Moon4Tue
5Wed2:057.23:305.98:52-0.58:462.45:047:22Waning Gibbous5Wed
6Thu2:397.04:115.89:29-0.49:232.65:027:24Waning Gibbous6Thu
7Fri3:146.74:545.610:07-0.110:052.85:017:25Waning Gibbous7Fri
8Sat3:536.45:405.510:490.210:552.95:007:26Waning Gibbous8Sat
9Sun4:386.06:305.511:350.511:583.04:587:27Third Quarter9Sun
10Mon5:335.67:235.612:260.84:577:28Third Quarter10Mon
11Tue6:425.38:145.81:102.81:201.04:567:29Third Quarter11Tue
12Wed7:595.29:016.22:202.42:161.24:557:30Third Quarter12Wed
13Thu9:135.29:456.73:221.73:101.34:547:31Waning Crescent13Thu
14Fri10:205.510:267.24:161.04:021.44:537:32Waning Crescent14Fri
15Sat11:195.811:077.65:050.24:521.54:527:34Waning Crescent15Sat
16Sun12:146.15:52-0.65:401.64:517:35New Moon16Sun
17Mon1:066.46:38-1.36:291.74:507:36New Moon17Mon
18Tue12:338.31:586.57:25-1.77:171.74:497:37New Moon18Tue
19Wed1:198.52:496.68:11-2.08:061.84:487:38New Moon19Wed
20Thu2:078.43:406.68:59-1.98:581.94:477:39Waxing Crescent20Thu
21Fri2:578.14:336.69:49-1.79:552.04:467:40Waxing Crescent21Fri
22Sat3:527.65:276.610:40-1.210:592.14:457:41Waxing Crescent22Sat
23Sun4:516.96:226.611:34-0.64:447:42First Quarter23Sun
24Mon5:576.27:196.612:102.012:310.04:437:43First Quarter24Mon
25Tue7:115.68:156.81:271.81:300.64:437:44First Quarter25Tue
26Wed8:305.39:076.92:401.42:291.14:427:45Waxing Gibbous26Wed
27Thu9:455.29:537.13:440.93:251.54:417:45Waxing Gibbous27Thu
28Fri10:525.310:367.24:390.44:181.84:417:46Waxing Gibbous28Fri
29Sat11:485.411:157.35:27-0.15:062.04:407:47Waxing Gibbous29Sat
30Sun12:375.66:08-0.45:502.24:397:48Full Moon30Sun
31Mon1:205.76:47-0.76:312.34:397:49Full Moon31Mon
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 2:34 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 82% 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 Gibbous (82% 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