Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 6:10 pm (2.6 ft)
Next high tide : in 5h 54m at 1:13 pm (5.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Sep 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:585.55:016.610:401.811:411.05:406:53First Quarter1Sun
2Mon5:555.05:406.311:192.45:416:51First Quarter2Mon
3Tue7:074.76:286.112:411.112:092.95:426:49First Quarter3Tue
4Wed8:334.57:286.01:471.11:173.35:436:48First Quarter4Wed
5Thu9:564.78:356.12:550.92:363.45:446:46Waxing Gibbous5Thu
6Fri10:545.09:386.33:560.73:463.25:466:44Waxing Gibbous6Fri
7Sat11:345.410:326.64:470.44:412.95:476:42Waxing Gibbous7Sat
8Sun12:085.85:300.05:282.65:486:40Waxing Gibbous8Sun
9Mon12:406.16:08-0.26:092.15:496:39Full Moon9Mon
10Tue12:047.21:116.56:44-0.46:491.65:506:37Full Moon10Tue
11Wed12:477.41:426.87:18-0.47:301.25:516:35Full Moon11Wed
12Thu1:317.42:137.27:52-0.28:110.75:526:33Full Moon12Thu
13Fri2:167.22:467.48:260.18:550.35:536:31Waning Gibbous13Fri
14Sat3:046.93:207.69:020.69:420.15:546:30Waning Gibbous14Sat
15Sun3:566.53:577.69:401.210:340.05:556:28Waning Gibbous15Sun
16Mon4:565.94:417.510:231.811:340.05:576:26Third Quarter16Mon
17Tue6:055.55:327.311:152.55:586:24Third Quarter17Tue
18Wed7:275.26:377.012:430.112:232.95:596:22Third Quarter18Wed
19Thu8:545.37:546.91:580.01:483.16:006:20Third Quarter19Thu
20Fri10:075.69:117.03:11-0.13:133.06:016:19Waning Crescent20Fri
21Sat11:026.110:197.24:15-0.24:232.56:026:17Waning Crescent21Sat
22Sun11:466.511:177.35:09-0.35:202.06:036:15Waning Crescent22Sun
23Mon12:246.85:55-0.36:091.56:046:13New Moon23Mon
24Tue12:097.412:587.16:36-0.26:531.06:066:11New Moon24Tue
25Wed12:567.41:317.37:130.17:340.66:076:10New Moon25Wed
26Thu1:407.22:027.47:470.58:130.46:086:08New Moon26Thu
27Fri2:236.92:327.38:200.98:510.36:096:06Waxing Crescent27Fri
28Sat3:066.53:017.28:521.59:300.36:106:04Waxing Crescent28Sat
29Sun3:506.13:307.09:242.010:100.46:116:02Waxing Crescent29Sun
30Mon4:385.74:026.79:572.610:550.66:126:00Waxing Crescent30Mon
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 3:41 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 spring phase. Tonight's moon is 5% 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 Waning Crescent (5% 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