Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 51m at 5:04 pm (3.3 ft)
Next high tide : 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 - Aug 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:397.02:466.38:15-0.58:231.75:067:39Full Moon1Sun
2Mon2:176.83:176.58:45-0.39:031.55:077:38Waning Gibbous2Mon
3Tue2:576.53:496.79:170.09:451.35:087:37Waning Gibbous3Tue
4Wed3:406.14:236.89:500.410:331.25:097:35Waning Gibbous4Wed
5Thu4:295.75:006.910:260.911:281.05:107:34Third Quarter5Thu
6Fri5:285.25:446.911:081.45:117:33Third Quarter6Fri
7Sat6:404.86:367.012:320.812:011.95:137:31Third Quarter7Sat
8Sun8:034.67:397.11:420.51:072.35:147:30Third Quarter8Sun
9Mon9:264.88:467.32:520.12:222.55:157:29Waning Crescent9Mon
10Tue10:355.29:527.63:57-0.43:372.45:167:27Waning Crescent10Tue
11Wed11:315.810:537.94:55-0.84:452.15:177:26Waning Crescent11Wed
12Thu12:196.35:47-1.15:441.65:187:24New Moon12Thu
13Fri1:036.76:34-1.36:391.25:197:23New Moon13Fri
14Sat12:428.11:457.17:18-1.37:300.85:207:22New Moon14Sat
15Sun1:337.92:257.48:00-1.08:180.55:217:20Waxing Crescent15Sun
16Mon2:237.63:057.58:40-0.69:070.45:227:19Waxing Crescent16Mon
17Tue3:127.03:447.49:200.09:560.45:247:17Waxing Crescent17Tue
18Wed4:026.44:247.210:000.610:470.55:257:15Waxing Crescent18Wed
19Thu4:555.85:067.010:411.311:430.75:267:14First Quarter19Thu
20Fri5:545.25:516.711:271.95:277:12First Quarter20Fri
21Sat7:034.86:446.412:450.912:212.55:287:11First Quarter21Sat
22Sun8:234.67:446.21:520.91:272.85:297:09First Quarter22Sun
23Mon9:424.78:476.22:590.92:402.95:307:07Waxing Gibbous23Mon
24Tue10:425.09:466.43:580.73:462.85:317:06Waxing Gibbous24Tue
25Wed11:255.310:376.64:480.44:402.65:327:04Waxing Gibbous25Wed
26Thu12:005.75:290.25:272.35:347:02Waxing Gibbous26Thu
27Fri12:326.06:060.16:081.95:357:01Full Moon27Fri
28Sat12:047.01:036.36:390.06:461.55:366:59Full Moon28Sat
29Sun12:447.01:336.67:110.07:241.25:376:57Full Moon29Sun
30Mon1:247.02:036.97:420.18:010.95:386:56Full Moon30Mon
31Tue2:056.92:347.18:140.38:400.65:396:54Waning Gibbous31Tue
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 8:00 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 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