Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide (tomorrow) : 2:59 am (0.8 ft)
Next high tide : in 1h 16m at 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 - Jan 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:047.65:566.212:122.17:494:52Third Quarter1Wed
2Thu6:517.77:155.512:061.01:261.67:494:53Third Quarter2Thu
3Fri7:407.88:445.212:581.82:381.17:494:54Third Quarter3Fri
4Sat8:327.910:145.21:552.63:440.67:494:55Waning Crescent4Sat
5Sun9:237.911:285.52:583.14:420.27:494:56Waning Crescent5Sun
6Mon10:147.94:023.45:33-0.27:484:57Waning Crescent6Mon
7Tue12:265.811:02 AM7.95:023.56:18-0.47:484:58Waning Crescent7Tue
8Wed1:116.011:47 AM7.95:543.56:59-0.57:484:59New Moon8Wed
9Thu1:496.212:297.96:403.47:36-0.57:485:00New Moon9Thu
10Fri2:246.31:097.87:213.38:10-0.47:475:01New Moon10Fri
11Sat2:566.41:477.78:003.18:43-0.37:475:02New Moon11Sat
12Sun3:266.52:247.58:383.09:130.07:475:03Waxing Crescent12Sun
13Mon3:576.53:017.19:172.99:430.37:465:04Waxing Crescent13Mon
14Tue4:266.63:406.69:592.810:120.77:465:06Waxing Crescent14Tue
15Wed4:566.74:246.110:462.710:421.27:455:07Waxing Crescent15Wed
16Thu5:276.85:165.511:402.511:141.87:455:08First Quarter16Thu
17Fri6:016.96:235.012:412.27:445:09First Quarter17Fri
18Sat6:407.17:504.61:471.77:435:11First Quarter18Sat
19Sun7:277.29:264.712:383.02:541.27:435:12First Quarter19Sun
20Mon8:227.410:475.01:423.43:570.67:425:13Waxing Gibbous20Mon
21Tue9:227.811:475.52:583.64:54-0.17:415:14Waxing Gibbous21Tue
22Wed10:218.24:113.65:45-0.77:405:16Waxing Gibbous22Wed
23Thu12:355.911:18 AM8.65:153.46:32-1.27:405:17Full Moon23Thu
24Fri1:186.412:128.96:133.07:17-1.57:395:18Full Moon24Fri
25Sat1:586.81:059.07:062.68:00-1.57:385:20Full Moon25Sat
26Sun2:377.21:568.87:582.18:41-1.37:375:21Waning Gibbous26Sun
27Mon3:167.62:498.48:511.79:22-0.87:365:22Waning Gibbous27Mon
28Tue3:567.83:427.79:451.410:02-0.17:355:24Waning Gibbous28Tue
29Wed4:358.04:396.810:421.210:430.87:345:25Waning Gibbous29Wed
30Thu5:178.05:436.011:441.111:271.67:335:26Third Quarter30Thu
31Fri6:017.96:595.312:521.07:325:28Third Quarter31Fri
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 11:27 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