Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 1h 48m at 11:11 am (1.0 ft)
Next high tide : 5:36 pm (7.1 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Oct 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:595.17:355.91:460.91:553.56:135:59Third Quarter1Mon
2Tue9:575.48:505.92:531.03:123.26:155:57Waning Crescent2Tue
3Wed10:365.79:536.03:491.04:102.86:165:55Waning Crescent3Wed
4Thu11:076.110:456.24:330.94:562.26:175:54Waning Crescent4Thu
5Fri11:346.511:316.45:110.95:361.76:185:52Waning Crescent5Fri
6Sat12:016.85:441.06:121.16:195:50New Moon6Sat
7Sun12:146.512:277.26:151.16:470.66:205:48New Moon7Sun
8Mon12:566.512:547.56:461.47:220.16:225:46New Moon8Mon
9Tue1:386.51:227.77:161.67:58-0.26:235:45New Moon9Tue
10Wed2:216.41:517.87:482.08:36-0.56:245:43Waxing Crescent10Wed
11Thu3:066.22:237.88:212.39:18-0.56:255:41Waxing Crescent11Thu
12Fri3:565.93:007.78:572.710:06-0.46:265:40Waxing Crescent12Fri
13Sat4:525.63:457.59:403.011:01-0.26:275:38Waxing Crescent13Sat
14Sun5:575.44:417.210:373.46:295:36First Quarter14Sun
15Mon7:105.45:536.812:050.011:56 AM3.56:305:35First Quarter15Mon
16Tue8:215.77:196.61:150.21:303.36:315:33First Quarter16Tue
17Wed9:196.28:436.52:230.32:552.76:325:31Waxing Gibbous17Wed
18Thu10:066.79:576.73:240.44:021.96:345:30Waxing Gibbous18Thu
19Fri10:477.311:016.84:170.64:591.06:355:28Waxing Gibbous19Fri
20Sat11:257.811:586.95:040.85:480.26:365:26Waxing Gibbous20Sat
21Sun12:018.25:481.16:34-0.46:375:25Full Moon21Sun
22Mon12:516.912:378.46:291.47:17-0.96:395:23Full Moon22Mon
23Tue1:416.91:128.47:091.87:59-1.06:405:22Full Moon23Tue
24Wed2:306.71:488.27:492.28:40-0.96:415:20Waning Gibbous24Wed
25Thu3:186.42:257.98:292.69:23-0.76:425:19Waning Gibbous25Thu
26Fri4:076.13:037.59:093.010:07-0.26:445:17Waning Gibbous26Fri
27Sat4:585.83:457.09:543.310:550.26:455:16Waning Gibbous27Sat
28Sun5:545.64:336.510:483.611:500.76:465:14Third Quarter28Sun
29Mon6:565.55:336.011:593.76:475:13Third Quarter29Mon
30Tue7:595.66:465.712:501.11:233.66:495:12Third Quarter30Tue
31Wed8:515.88:045.51:501.32:393.26:505:10Third Quarter31Wed
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 2:23 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 (28% illuminated). This places Coos Bay, OR in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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