Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 3:42 pm (3.0 ft)
Next high tide : in 4h 17m at 11:19 am (4.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Apr 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:157.012:157.46:121.06:300.15:586:42Full Moon1Sat
2Sun12:477.61:077.46:570.27:080.45:576:44Full Moon2Sun
3Mon1:218.11:597.37:43-0.57:470.85:556:45Full Moon3Mon
4Tue1:568.42:527.08:29-1.08:261.35:536:46Waning Gibbous4Tue
5Wed2:348.53:476.69:17-1.29:081.95:516:47Waning Gibbous5Wed
6Thu3:158.34:466.110:09-1.19:542.45:496:48Waning Gibbous6Thu
7Fri4:018.05:525.711:06-0.810:492.95:486:49Third Quarter7Fri
8Sat4:557.47:095.412:11-0.35:466:51Third Quarter8Sat
9Sun6:016.98:325.412:013.31:230.15:446:52Third Quarter9Sun
10Mon7:216.49:425.71:323.32:370.35:436:53Third Quarter10Mon
11Tue8:446.210:336.13:013.03:420.45:416:54Waning Crescent11Tue
12Wed9:576.211:126.44:122.54:350.55:396:55Waning Crescent12Wed
13Thu10:576.311:456.75:061.95:180.75:376:56Waning Crescent13Thu
14Fri11:486.45:501.35:550.95:366:58Waning Crescent14Fri
15Sat12:136.912:336.46:290.86:281.25:346:59New Moon15Sat
16Sun12:397.11:146.37:040.36:591.55:327:00New Moon16Sun
17Mon1:057.21:546.27:370.07:281.85:317:01New Moon17Mon
18Tue1:307.32:346.18:09-0.27:572.25:297:02New Moon18Tue
19Wed1:567.23:145.98:42-0.38:262.55:287:03Waxing Crescent19Wed
20Thu2:227.13:565.69:17-0.38:562.85:267:05Waxing Crescent20Thu
21Fri2:517.04:425.39:55-0.19:283.15:247:06Waxing Crescent21Fri
22Sat3:246.85:355.110:390.110:073.35:237:07Waxing Crescent22Sat
23Sun4:036.56:384.911:310.311:013.65:217:08First Quarter23Sun
24Mon4:556.27:465.012:310.55:207:09First Quarter24Mon
25Tue6:056.08:475.312:233.61:360.65:187:11First Quarter25Tue
26Wed7:305.89:345.71:543.32:370.55:177:12First Quarter26Wed
27Thu8:525.910:136.33:102.73:310.55:157:13Waxing Gibbous27Thu
28Fri10:036.110:506.94:111.94:200.65:147:14Waxing Gibbous28Fri
29Sat11:066.411:257.55:030.95:060.85:127:15Waxing Gibbous29Sat
30Sun1:056.66:52-0.16:501.06:118:16Full Moon30Sun
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 1:30 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 transitional phase. Tonight's moon is 21% 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 shifting between spring and neap.

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 (21% illuminated). This places Coos Bay, OR in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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