Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 4h 34m at 3:41 am (0.4 ft)
Next high tide : 9:57 am (4.4 ft)
Sunset today : 8:59 pm
Sunrise tomorrow : 5:44 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Oct 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:376.43:277.29:211.69:580.37:146:58Waning Gibbous1Tue
2Wed4:186.13:537.19:492.110:340.37:156:56Waning Gibbous2Wed
3Thu5:015.74:196.910:172.511:130.57:166:54Waning Gibbous3Thu
4Fri5:495.44:506.710:483.011:590.77:186:52Waning Gibbous4Fri
5Sat6:485.15:286.411:243.47:196:51Third Quarter5Sat
6Sun8:014.96:216.212:560.812:193.77:206:49Third Quarter6Sun
7Mon9:245.07:376.02:040.91:493.97:216:47Third Quarter7Mon
8Tue10:315.39:036.13:160.93:233.77:226:45Third Quarter8Tue
9Wed11:175.710:186.44:180.64:343.27:236:44Waning Crescent9Wed
10Thu11:546.211:216.85:100.45:302.57:256:42Waning Crescent10Thu
11Fri12:276.85:560.26:191.67:266:40Waning Crescent11Fri
12Sat12:177.11:007.46:370.27:050.77:276:38New Moon12Sat
13Sun1:107.31:337.97:170.37:51-0.17:286:37New Moon13Sun
14Mon2:027.42:088.47:570.68:36-0.77:296:35New Moon14Mon
15Tue2:557.32:458.68:371.19:23-1.27:316:33Waxing Crescent15Tue
16Wed3:497.03:248.69:181.610:11-1.37:326:32Waxing Crescent16Wed
17Thu4:456.74:068.410:022.211:03-1.17:336:30Waxing Crescent17Thu
18Fri5:456.34:548.010:512.77:346:29Waxing Crescent18Fri
19Sat6:525.95:507.412:00-0.711:50 AM3.27:366:27First Quarter19Sat
20Sun8:085.86:586.81:05-0.31:073.57:376:25First Quarter20Sun
21Mon9:275.98:196.42:170.22:403.47:386:24First Quarter21Mon
22Tue10:326.29:426.33:280.44:053.07:396:22Waxing Gibbous22Tue
23Wed11:216.510:536.34:300.65:102.57:416:21Waxing Gibbous23Wed
24Thu11:596.811:526.45:220.86:011.97:426:19Waxing Gibbous24Thu
25Fri12:317.16:051.06:441.37:436:18Waxing Gibbous25Fri
26Sat12:426.412:597.36:421.27:210.87:446:16Full Moon26Sat
27Sun1:276.512:257.56:161.56:550.46:465:15Full Moon27Sun
28Mon1:086.412:517.66:471.97:280.16:475:13Full Moon28Mon
29Tue1:486.41:167.67:172.28:01-0.16:485:12Full Moon29Tue
30Wed2:286.21:427.57:462.68:34-0.26:495:11Waning Gibbous30Wed
31Thu3:096.12:097.48:162.99:08-0.16:515:09Waning Gibbous31Thu
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 6:49 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 39% 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 Third Quarter (39% 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