Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 11:56 pm (1.1 ft)
Next high tide : in 3h 58m at 5:38 pm (6.8 ft)
Sunset today : 8:36 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Sep 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:185.610:447.44:39-0.14:352.36:417:52Waxing Gibbous1Thu
2Fri12:136.15:38-0.55:411.96:427:50Waxing Gibbous2Fri
3Sat1:006.66:30-0.76:381.46:437:48Waxing Gibbous3Sat
4Sun12:427.91:447.07:18-0.97:300.96:447:46Full Moon4Sun
5Mon1:357.92:257.48:02-0.88:190.56:457:45Full Moon5Mon
6Tue2:257.83:047.58:44-0.59:050.36:467:43Full Moon6Tue
7Wed3:137.63:437.69:24-0.19:510.26:477:41Waning Gibbous7Wed
8Thu4:017.14:217.510:030.410:370.26:487:39Waning Gibbous8Thu
9Fri4:506.65:007.210:421.011:250.46:507:38Waning Gibbous9Fri
10Sat5:416.15:406.911:241.66:517:36Waning Gibbous10Sat
11Sun6:375.56:246.612:160.612:092.26:527:34Third Quarter11Sun
12Mon7:415.17:166.21:140.91:042.76:537:32Third Quarter12Mon
13Tue8:565.08:186.02:191.12:133.06:547:30Third Quarter13Tue
14Wed10:125.09:256.03:261.13:283.06:557:28Third Quarter14Wed
15Thu11:125.310:286.14:281.04:352.86:567:27Waning Crescent15Thu
16Fri11:565.611:226.45:200.85:292.56:577:25Waning Crescent16Fri
17Sat12:336.06:040.66:142.16:587:23Waning Crescent17Sat
18Sun12:096.61:066.36:430.46:551.77:007:21Waning Crescent18Sun
19Mon12:526.81:376.77:180.47:331.37:017:19New Moon19Mon
20Tue1:347.02:087.07:510.38:100.97:027:18New Moon20Tue
21Wed2:157.02:407.28:240.48:470.57:037:16New Moon21Wed
22Thu2:567.03:117.48:570.69:260.27:047:14New Moon22Thu
23Fri3:396.83:457.59:320.910:080.17:057:12Waxing Crescent23Fri
24Sat4:266.64:217.510:091.310:540.07:067:10Waxing Crescent24Sat
25Sun4:176.24:037.49:501.810:460.16:076:08Waxing Crescent25Sun
26Mon5:165.94:527.210:392.211:460.26:086:07First Quarter26Mon
27Tue6:255.65:527.011:412.66:106:05First Quarter27Tue
28Wed7:415.67:056.812:550.312:592.86:116:03First Quarter28Wed
29Thu8:555.88:236.82:070.32:222.76:126:01Waxing Gibbous29Thu
30Fri9:576.29:366.93:140.23:372.26:135:59Waxing Gibbous30Fri
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 8:47 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 transitional phase. Tonight's moon is 74% 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 Gibbous (74% 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