Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 5h 07m at 8:03 am (-1.5 ft)
Next high tide : 2:36 pm (6.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:19 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Apr 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:257.25:262.16:02-0.16:597:42Waning Crescent1Thu
2Fri12:336.912:257.46:241.46:50-0.26:577:43Waning Crescent2Fri
3Sat1:157.31:197.57:150.87:35-0.16:557:44New Moon3Sat
4Sun1:547.62:107.58:020.38:160.26:547:46New Moon4Sun
5Mon2:317.82:587.38:46-0.18:550.66:527:47New Moon5Mon
6Tue3:077.93:457.19:28-0.39:331.06:507:48Waxing Crescent6Tue
7Wed3:437.74:316.710:10-0.310:111.56:487:49Waxing Crescent7Wed
8Thu4:187.55:196.310:52-0.110:502.06:477:50Waxing Crescent8Thu
9Fri4:547.16:095.811:370.111:322.56:457:51Waxing Crescent9Fri
10Sat5:336.77:055.512:260.56:437:53First Quarter10Sat
11Sun6:196.38:105.212:222.91:220.86:417:54First Quarter11Sun
12Mon7:155.99:215.21:263.22:251.06:407:55First Quarter12Mon
13Tue8:255.610:255.42:443.23:301.16:387:56First Quarter13Tue
14Wed9:395.611:145.73:593.04:291.16:367:57Waxing Gibbous14Wed
15Thu10:445.811:536.05:002.65:191.06:357:58Waxing Gibbous15Thu
16Fri11:406.05:492.16:020.96:338:00Waxing Gibbous16Fri
17Sat12:286.412:286.36:311.66:410.86:318:01Waxing Gibbous17Sat
18Sun1:006.81:146.57:101.07:170.86:308:02Full Moon18Sun
19Mon1:317.11:586.77:480.47:530.96:288:03Full Moon19Mon
20Tue2:037.42:426.78:26-0.18:281.16:268:04Full Moon20Tue
21Wed2:367.73:286.79:06-0.59:051.46:258:05Full Moon21Wed
22Thu3:117.84:156.59:47-0.89:441.76:238:07Waning Gibbous22Thu
23Fri3:487.85:066.310:32-0.910:272.06:228:08Waning Gibbous23Fri
24Sat4:307.66:026.111:21-0.811:172.46:208:09Waning Gibbous24Sat
25Sun5:197.37:055.912:17-0.56:198:10Third Quarter25Sun
26Mon6:176.98:135.812:192.71:19-0.36:178:11Third Quarter26Mon
27Tue7:276.59:226.01:352.82:270.06:168:12Third Quarter27Tue
28Wed8:476.310:236.32:592.63:340.26:148:14Third Quarter28Wed
29Thu10:076.211:156.84:162.14:360.36:138:15Waning Crescent29Thu
30Fri11:176.35:201.45:310.46:118:16Waning Crescent30Fri
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 11:19 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 spring phase. Tonight's moon is 0% 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 maximum.

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 New Moon (0% illuminated). This places Coos Bay, OR in a spring tide cycle, so tidal ranges are near their weekly maximum 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