Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 9:40 pm (0.9 ft)
Next high tide : in 2h 11m at 3:51 pm (7.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - May 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:065.310:006.23:232.23:241.35:097:18Waning Crescent1Wed
2Thu10:105.410:386.54:181.74:121.45:077:19Waning Crescent2Thu
3Fri11:045.611:126.75:041.24:551.55:067:20Waning Crescent3Fri
4Sat11:515.711:446.95:430.75:341.65:057:21Waning Crescent4Sat
5Sun12:345.96:200.36:111.75:037:23New Moon5Sun
6Mon12:167.11:156.06:55-0.16:461.85:027:24New Moon6Mon
7Tue12:487.31:566.17:30-0.47:212.05:017:25New Moon7Tue
8Wed1:207.32:376.18:05-0.67:562.15:007:26New Moon8Wed
9Thu1:537.33:186.08:41-0.78:332.34:587:27Waxing Crescent9Thu
10Fri2:287.34:026.09:20-0.79:142.44:577:28Waxing Crescent10Fri
11Sat3:077.14:495.910:02-0.610:012.64:567:29Waxing Crescent11Sat
12Sun3:526.95:405.910:49-0.410:582.64:557:30Waxing Crescent12Sun
13Mon4:466.56:356.011:42-0.14:547:32First Quarter13Mon
14Tue5:516.17:326.212:082.612:390.24:537:33First Quarter14Tue
15Wed7:095.88:286.51:252.21:410.44:527:34First Quarter15Wed
16Thu8:315.79:217.02:391.72:420.74:507:35Waxing Gibbous16Thu
17Fri9:475.810:097.53:450.93:400.94:497:36Waxing Gibbous17Fri
18Sat10:546.010:567.94:430.14:361.14:497:37Waxing Gibbous18Sat
19Sun11:556.211:418.25:36-0.65:281.34:487:38Waxing Gibbous19Sun
20Mon12:506.46:25-1.26:191.44:477:39Full Moon20Mon
21Tue12:258.31:426.67:12-1.67:071.64:467:40Full Moon21Tue
22Wed1:098.32:326.67:57-1.77:551.84:457:41Full Moon22Wed
23Thu1:548.03:216.58:42-1.68:422.04:447:42Waning Gibbous23Thu
24Fri2:387.74:096.49:26-1.39:312.24:437:43Waning Gibbous24Fri
25Sat3:247.24:576.210:11-0.810:242.44:437:44Waning Gibbous25Sat
26Sun4:116.65:466.110:56-0.311:222.54:427:45Waning Gibbous26Sun
27Mon5:036.06:366.011:440.24:417:46Third Quarter27Mon
28Tue6:015.47:276.012:282.512:350.74:417:47Third Quarter28Tue
29Wed7:085.08:166.11:382.31:281.24:407:47Third Quarter29Wed
30Thu8:214.89:026.32:441.92:211.54:397:48Third Quarter30Thu
31Fri9:324.79:436.53:411.53:121.84:397:49Waning Crescent31Fri
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 6:45 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 6% 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 Waxing Crescent (6% 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