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 : 11:04 am (0.5 ft)
Next high tide : in 2h 35m at 4:56 am (6.0 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 - Apr 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:386.94:432.95:31-0.16:577:43Waxing Gibbous1Wed
2Thu12:106.411:45 AM7.25:472.06:19-0.26:557:45Waxing Gibbous2Thu
3Fri12:477.012:447.46:421.17:03-0.16:537:46Full Moon3Fri
4Sat1:237.61:407.57:320.27:450.26:517:47Full Moon4Sat
5Sun1:598.12:347.48:19-0.58:250.66:507:48Full Moon5Sun
6Mon2:368.43:267.19:06-1.09:051.16:487:49Full Moon6Mon
7Tue3:138.44:196.79:52-1.29:461.76:467:50Waning Gibbous7Tue
8Wed3:518.25:136.310:39-1.110:282.36:447:52Waning Gibbous8Wed
9Thu4:327.86:115.811:29-0.711:142.86:437:53Waning Gibbous9Thu
10Fri5:167.37:165.412:23-0.26:417:54Third Quarter10Fri
11Sat6:086.78:325.212:103.21:260.36:397:55Third Quarter11Sat
12Sun7:126.29:525.21:243.52:360.66:387:56Third Quarter12Sun
13Mon8:305.810:535.52:553.43:450.86:367:58Third Quarter13Mon
14Tue9:495.711:355.84:163.14:440.96:347:59Waning Crescent14Tue
15Wed10:565.85:162.65:311.06:338:00Waning Crescent15Wed
16Thu12:076.111:51 AM5.96:032.16:101.06:318:01Waning Crescent16Thu
17Fri12:346.412:396.06:431.56:441.26:298:02Waning Crescent17Fri
18Sat1:006.71:226.17:190.97:151.46:288:03New Moon18Sat
19Sun1:257.02:046.17:530.47:451.66:268:05New Moon19Sun
20Mon1:517.22:456.18:260.08:151.96:258:06New Moon20Mon
21Tue2:177.33:266.09:00-0.48:452.26:238:07New Moon21Tue
22Wed2:447.44:095.99:35-0.69:172.56:218:08Waxing Crescent22Wed
23Thu3:137.44:555.710:13-0.69:502.86:208:09Waxing Crescent23Thu
24Fri3:477.35:465.410:55-0.610:283.06:188:11Waxing Crescent24Fri
25Sat4:267.26:445.211:45-0.411:173.36:178:12Waxing Crescent25Sat
26Sun5:156.97:505.212:43-0.26:158:13First Quarter26Sun
27Mon6:186.68:575.412:263.41:470.06:148:14First Quarter27Mon
28Tue7:386.39:555.81:553.32:530.16:128:15First Quarter28Tue
29Wed9:066.110:436.33:232.83:540.26:118:16Waxing Gibbous29Wed
30Thu10:266.111:256.94:362.04:500.46:108:18Waxing Gibbous30Thu
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 8:00 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 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