Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 5h 07m at 6:27 am (-1.2 ft)
Next high tide : 1:13 pm (5.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Mar 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:207.49:465.212:543.22:500.36:536:04First Quarter1Sat
2Sun8:367.410:575.62:203.44:01-0.16:526:06Waxing Gibbous2Sun
3Mon9:497.611:486.13:453.35:01-0.56:506:07Waxing Gibbous3Mon
4Tue10:547.94:552.85:54-0.76:486:08Waxing Gibbous4Tue
5Wed12:326.611:52 AM8.25:532.36:39-0.86:476:09Full Moon5Wed
6Thu1:117.012:448.26:451.77:21-0.86:456:11Full Moon6Thu
7Fri1:477.41:338.17:321.27:59-0.56:436:12Full Moon7Fri
8Sat2:227.62:217.78:170.98:360.06:416:13Full Moon8Sat
9Sun2:567.73:077.29:010.79:100.66:406:14Waning Gibbous9Sun
10Mon3:297.63:546.79:440.69:451.36:386:16Waning Gibbous10Mon
11Tue4:027.54:436.010:290.610:192.06:366:17Waning Gibbous11Tue
12Wed4:367.25:385.511:180.810:572.66:346:18Third Quarter12Wed
13Thu5:126.86:445.012:131.06:336:19Third Quarter13Thu
14Fri5:576.58:104.81:181.26:316:21Third Quarter14Fri
15Sat6:566.29:444.912:463.62:301.26:296:22Third Quarter15Sat
16Sun8:086.110:485.22:123.73:381.06:276:23Third Quarter16Sun
17Mon9:206.211:285.53:333.64:340.86:266:24Waning Crescent17Mon
18Tue10:196.54:343.25:190.56:246:25Waning Crescent18Tue
19Wed12:005.811:10 AM6.85:212.85:570.36:226:27Waning Crescent19Wed
20Thu12:296.211:55 AM7.16:022.36:310.26:206:28Waning Crescent20Thu
21Fri12:576.612:377.26:411.87:030.16:186:29New Moon21Fri
22Sat1:256.91:197.37:181.37:350.36:176:30New Moon22Sat
23Sun1:537.32:027.27:560.88:060.56:156:31New Moon23Sun
24Mon2:227.52:476.98:360.38:391.06:136:33Waxing Crescent24Mon
25Tue2:527.73:356.69:180.09:131.56:116:34Waxing Crescent25Tue
26Wed3:267.84:296.110:05-0.29:522.06:106:35Waxing Crescent26Wed
27Thu4:037.75:315.610:58-0.110:362.66:086:36Waxing Crescent27Thu
28Fri4:497.56:465.312:000.06:066:37First Quarter28Fri
29Sat5:477.28:125.21:120.16:046:38First Quarter29Sat
30Sun7:026.99:335.512:563.42:280.16:026:40First Quarter30Sun
31Mon8:276.810:345.92:303.33:390.06:016:41Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9432845)

Common Questions About Coos Bay, OR Tides

Show All
What time does the tide turn (slack tide) in Coos Bay, OR today?

Slack tide in Coos Bay, OR is approximately 9:50 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 5% 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 Crescent (5% 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