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 - Aug 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:057.13:385.99:00-0.78:532.36:088:38Full Moon1Thu
2Fri2:427.04:066.09:29-0.69:302.26:098:36Full Moon2Fri
3Sat3:196.84:346.29:58-0.310:082.06:108:35Waning Gibbous3Sat
4Sun3:576.55:016.310:260.010:491.86:118:34Waning Gibbous4Sun
5Mon4:386.05:296.510:540.511:341.56:128:33Waning Gibbous5Mon
6Tue5:245.55:596.611:241.06:138:31Waning Gibbous6Tue
7Wed6:195.06:336.712:261.311:57 AM1.66:148:30Third Quarter7Wed
8Thu7:304.57:166.81:261.012:382.26:158:28Third Quarter8Thu
9Fri9:004.38:116.92:340.71:342.76:178:27Third Quarter9Fri
10Sat10:344.49:187.13:450.22:493.16:188:26Waning Crescent10Sat
11Sun11:494.810:287.44:53-0.34:123.16:198:24Waning Crescent11Sun
12Mon12:455.35:53-0.95:272.96:208:23Waning Crescent12Mon
13Tue1:315.86:47-1.36:302.56:218:21New Moon13Tue
14Wed12:328.12:126.37:35-1.67:271.96:228:20New Moon14Wed
15Thu1:288.32:526.78:19-1.68:201.46:238:18New Moon15Thu
16Fri2:218.23:307.19:01-1.49:120.96:248:17New Moon16Fri
17Sat3:147.94:087.49:41-1.010:030.66:258:15Waxing Crescent17Sat
18Sun4:067.34:467.510:20-0.310:550.46:268:14Waxing Crescent18Sun
19Mon5:006.65:257.510:590.411:490.36:288:12Waxing Crescent19Mon
20Tue5:575.96:057.311:401.36:298:10First Quarter20Tue
21Wed7:025.26:487.012:480.412:242.16:308:09First Quarter21Wed
22Thu8:204.77:396.71:520.51:172.86:318:07First Quarter22Thu
23Fri9:564.68:416.43:030.52:273.26:328:05First Quarter23Fri
24Sat11:254.89:486.34:130.53:493.46:338:04Waxing Gibbous24Sat
25Sun12:235.15:160.35:013.36:348:02Waxing Gibbous25Sun
26Mon1:025.36:070.15:573.06:358:00Waxing Gibbous26Mon
27Tue1:335.66:500.06:422.76:367:59Waxing Gibbous27Tue
28Wed12:316.82:005.87:26-0.17:222.36:387:57Full Moon28Wed
29Thu1:127.02:266.17:57-0.27:582.06:397:55Full Moon29Thu
30Fri1:517.02:526.48:26-0.18:331.66:407:54Full Moon30Fri
31Sat2:286.93:176.68:540.09:081.36:417:52Full Moon31Sat
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 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