Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 12:29 pm (2.5 ft)
Next high tide : in 2h 50m at 7:19 am (4.7 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Oct 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:085.48:456.02:530.83:113.46:135:59Waxing Gibbous1Wed
2Thu10:515.79:516.13:530.84:133.06:145:57Waxing Gibbous2Thu
3Fri11:236.010:446.34:410.75:002.56:165:55Waxing Gibbous3Fri
4Sat11:506.311:296.55:200.75:392.06:175:54Waxing Gibbous4Sat
5Sun12:166.65:540.76:151.56:185:52Full Moon5Sun
6Mon12:116.612:416.96:240.86:491.06:195:50Full Moon6Mon
7Tue12:516.71:067.26:531.07:230.66:205:48Full Moon7Tue
8Wed1:316.61:307.47:211.37:570.26:215:47Full Moon8Wed
9Thu2:116.51:567.57:501.78:320.06:235:45Waning Gibbous9Thu
10Fri2:546.22:237.58:192.19:10-0.26:245:43Waning Gibbous10Fri
11Sat3:406.02:537.58:512.59:53-0.26:255:41Waning Gibbous11Sat
12Sun4:335.63:297.49:262.910:43-0.16:265:40Waning Gibbous12Sun
13Mon5:355.34:157.210:103.311:440.16:275:38Third Quarter13Mon
14Tue6:495.25:176.911:153.66:295:36Third Quarter14Tue
15Wed8:095.36:406.612:550.212:483.76:305:35Third Quarter15Wed
16Thu9:165.78:106.62:080.32:243.46:315:33Third Quarter16Thu
17Fri10:066.39:296.83:130.23:392.76:325:31Waning Crescent17Fri
18Sat10:486.910:367.04:090.24:401.86:345:30Waning Crescent18Sat
19Sun11:257.511:367.24:580.25:330.96:355:28Waning Crescent19Sun
20Mon12:018.05:430.46:210.16:365:27New Moon20Mon
21Tue12:317.212:378.36:250.87:06-0.66:375:25New Moon21Tue
22Wed1:237.21:128.57:051.27:50-1.06:395:23New Moon22Wed
23Thu2:157.01:488.47:441.78:33-1.16:405:22Waxing Crescent23Thu
24Fri3:066.72:248.28:242.39:17-0.96:415:20Waxing Crescent24Fri
25Sat3:576.33:027.89:052.810:03-0.56:425:19Waxing Crescent25Sat
26Sun4:526.03:437.39:503.210:520.06:445:17Waxing Crescent26Sun
27Mon5:525.74:306.710:423.611:490.56:455:16First Quarter27Mon
28Tue7:015.55:286.211:533.86:465:14First Quarter28Tue
29Wed8:135.66:435.812:530.91:223.86:475:13First Quarter29Wed
30Thu9:125.88:035.61:581.12:443.56:495:12First Quarter30Thu
31Fri9:546.19:155.72:571.23:452.96:505:10Waxing Gibbous31Fri
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 9:54 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 neap phase. Tonight's moon is 47% 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 (47% 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