Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 11:07 am (-0.4 ft)
Next high tide : in 4h 58m at 4:20 am (6.4 ft)
Sunset today : 9:00 pm
Sunrise tomorrow : 5:41 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Sep 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:455.210:576.65:050.64:562.86:407:52Waning Crescent1Thu
2Fri12:255.75:520.35:502.36:427:50Waning Crescent2Fri
3Sat1:016.16:330.06:371.86:437:49Waning Crescent3Sat
4Sun12:387.21:356.67:12-0.27:221.26:447:47New Moon4Sun
5Mon1:247.42:107.17:49-0.38:060.76:457:45New Moon5Mon
6Tue2:117.52:457.58:26-0.28:500.26:467:43New Moon6Tue
7Wed2:597.33:217.89:040.19:36-0.26:477:42Waxing Crescent7Wed
8Thu3:497.13:597.99:430.510:24-0.46:487:40Waxing Crescent8Thu
9Fri4:416.74:417.910:241.011:16-0.46:497:38Waxing Crescent9Fri
10Sat5:386.25:287.711:101.66:507:36First Quarter10Sat
11Sun6:435.76:227.412:15-0.212:042.16:527:34First Quarter11Sun
12Mon7:575.47:277.11:210.01:112.56:537:33First Quarter12Mon
13Tue9:185.48:416.92:340.12:322.76:547:31First Quarter13Tue
14Wed10:325.69:566.83:460.23:542.66:557:29Waxing Gibbous14Wed
15Thu11:316.011:046.94:500.15:042.26:567:27Waxing Gibbous15Thu
16Fri12:176.45:450.16:021.76:577:25Waxing Gibbous16Fri
17Sat12:027.012:576.86:320.16:511.36:587:23Waxing Gibbous17Sat
18Sun12:537.11:327.07:120.27:340.86:597:22Full Moon18Sun
19Mon1:387.02:047.27:490.48:130.57:007:20Full Moon19Mon
20Tue2:216.92:357.38:230.78:500.37:017:18Full Moon20Tue
21Wed3:016.73:057.38:551.19:260.27:037:16Full Moon21Wed
22Thu3:416.53:347.29:261.410:020.37:047:14Waning Gibbous22Thu
23Fri4:226.24:047.09:581.810:400.47:057:12Waning Gibbous23Fri
24Sat5:045.84:366.810:302.211:210.67:067:11Waning Gibbous24Sat
25Sun5:515.55:126.611:062.67:077:09Waning Gibbous25Sun
26Mon6:455.25:566.312:080.811:49 AM3.07:087:07Third Quarter26Mon
27Tue7:505.06:526.11:041.012:493.27:097:05Third Quarter27Tue
28Wed9:025.08:045.92:091.12:083.37:117:03Third Quarter28Wed
29Thu10:065.39:196.03:151.13:273.17:127:02Third Quarter29Thu
30Fri10:575.710:276.34:130.94:332.67:137:00Waning Crescent30Fri
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 7:43 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 87% 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 Gibbous (87% 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