Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide (tomorrow) : 5:31 am (-0.8 ft)
Next high tide : in 3h 28m at 10:03 pm (7.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Mar 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:346.92:227.08:251.68:370.66:526:05New Moon1Tue
2Wed2:597.02:596.78:591.49:031.16:516:06Waxing Crescent2Wed
3Thu3:237.13:386.29:351.29:281.56:496:08Waxing Crescent3Thu
4Fri3:477.14:205.810:131.29:542.06:476:09Waxing Crescent4Fri
5Sat4:147.05:105.310:571.110:222.66:466:10Waxing Crescent5Sat
6Sun4:456.96:154.811:501.110:563.16:446:11First Quarter6Sun
7Mon5:256.87:424.612:551.16:426:13First Quarter7Mon
8Tue6:226.79:194.72:100.96:416:14First Quarter8Tue
9Wed7:386.810:315.11:173.83:230.56:396:15First Quarter9Wed
10Thu8:597.011:195.62:543.74:240.16:376:16Waxing Gibbous10Thu
11Fri10:107.411:576.24:113.35:16-0.46:356:18Waxing Gibbous11Fri
12Sat11:107.85:122.66:02-0.76:346:19Waxing Gibbous12Sat
13Sun12:336.812:068.16:061.86:43-0.76:326:20Full Moon13Sun
14Mon1:097.312:598.26:551.17:23-0.66:306:21Full Moon14Mon
15Tue1:447.81:518.07:440.48:02-0.26:286:22Full Moon15Tue
16Wed2:208.22:447.68:32-0.28:410.46:266:24Waning Gibbous16Wed
17Thu2:578.43:387.19:21-0.59:211.16:256:25Waning Gibbous17Thu
18Fri3:358.34:356.410:12-0.510:021.86:236:26Waning Gibbous18Fri
19Sat4:168.05:385.811:07-0.310:492.56:216:27Third Quarter19Sat
20Sun5:037.66:535.312:100.16:196:28Third Quarter20Sun
21Mon5:587.08:245.11:210.46:186:30Third Quarter21Mon
22Tue7:086.69:535.31:073.52:380.66:166:31Third Quarter22Tue
23Wed8:296.410:535.62:403.53:480.66:146:32Waning Crescent23Wed
24Thu9:436.411:345.93:593.24:450.56:126:33Waning Crescent24Thu
25Fri10:436.54:572.85:300.56:106:34Waning Crescent25Fri
26Sat12:056.211:32 AM6.75:422.36:060.56:096:36Waning Crescent26Sat
27Sun12:326.512:156.86:211.86:380.66:076:37New Moon27Sun
28Mon12:576.712:546.76:561.47:070.86:056:38New Moon28Mon
29Tue1:216.91:336.77:291.07:341.06:036:39New Moon29Tue
30Wed1:457.12:116.58:020.68:001.46:016:40New Moon30Wed
31Thu2:097.22:496.38:340.48:271.76:006:41Waxing Crescent31Thu
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 1:47 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 transitional phase. Tonight's moon is 21% 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 Waning Crescent (21% 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