Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 2h 11m at 1:19 pm (1.8 ft)
Next high tide : 7:55 pm (6.7 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Jun 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:417.05:256.010:36-0.810:372.55:388:50Waxing Crescent1Tue
2Wed4:246.86:086.011:17-0.611:292.55:388:51Waxing Crescent2Wed
3Thu5:136.46:536.212:01-0.35:378:52First Quarter3Thu
4Fri6:116.07:426.412:322.312:490.15:378:52First Quarter4Fri
5Sat7:225.58:326.71:422.01:430.55:378:53First Quarter5Sat
6Sun8:425.29:247.12:541.52:410.95:368:54First Quarter6Sun
7Mon10:045.110:157.54:020.83:411.35:368:55Waxing Gibbous7Mon
8Tue11:195.311:067.85:040.04:421.65:368:55Waxing Gibbous8Tue
9Wed12:255.66:00-0.85:411.85:368:56Waxing Gibbous9Wed
10Thu1:235.96:53-1.46:371.85:358:56Full Moon10Thu
11Fri12:458.32:176.27:42-1.87:311.95:358:57Full Moon11Fri
12Sat1:338.33:076.48:29-1.98:231.95:358:57Full Moon12Sat
13Sun2:228.23:556.59:14-1.99:141.95:358:58Full Moon13Sun
14Mon3:107.94:416.59:58-1.610:041.95:358:58Waning Gibbous14Mon
15Tue3:587.45:266.510:42-1.210:572.05:358:59Waning Gibbous15Tue
16Wed4:466.86:106.511:25-0.611:532.05:358:59Waning Gibbous16Wed
17Thu5:376.26:556.412:080.05:358:59Third Quarter17Thu
18Fri6:325.57:406.412:542.012:530.65:359:00Third Quarter18Fri
19Sat7:354.98:266.41:591.91:411.25:359:00Third Quarter19Sat
20Sun8:464.69:136.43:051.62:311.75:369:00Third Quarter20Sun
21Mon10:024.49:596.54:071.23:252.15:369:01Waning Crescent21Mon
22Tue11:134.510:436.75:010.84:192.35:369:01Waning Crescent22Tue
23Wed12:124.75:490.35:112.55:369:01Waning Crescent23Wed
24Thu1:025.06:31-0.16:002.65:379:01Waning Crescent24Thu
25Fri12:067.11:455.37:11-0.56:462.55:379:01New Moon25Fri
26Sat12:467.22:255.67:48-0.87:292.55:379:01New Moon26Sat
27Sun1:267.43:045.88:25-1.08:112.45:389:01New Moon27Sun
28Mon2:057.43:426.09:01-1.28:532.25:389:01New Moon28Mon
29Tue2:467.44:206.29:37-1.29:372.15:399:01Waxing Crescent29Tue
30Wed3:287.24:586.410:15-1.110:252.05:399:01Waxing Crescent30Wed
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 4:37 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 neap phase. Tonight's moon is 53% 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 minimum.

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 First Quarter (53% illuminated). This places Coos Bay, OR in a neap tide cycle, so tidal ranges are near their weekly minimum 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