Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Coos Bay, OR.
Next low tide : in 2h 18m at 1:04 am (0.7 ft)
Next high tide : 7:19 am (4.7 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Jun 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:548.12:466.07:59-1.87:442.64:397:49Full Moon1Mon
2Tue1:377.93:346.08:43-1.68:312.74:387:50Waning Gibbous2Tue
3Wed2:217.54:215.89:26-1.39:192.94:387:51Waning Gibbous3Wed
4Thu3:067.15:085.710:11-0.910:113.04:377:52Waning Gibbous4Thu
5Fri3:536.55:565.710:56-0.411:103.04:377:52Waning Gibbous5Fri
6Sat4:446.06:435.711:420.14:367:53Third Quarter6Sat
7Sun5:415.47:285.812:182.912:290.64:367:54Third Quarter7Sun
8Mon6:484.98:116.01:292.61:171.14:367:54Third Quarter8Mon
9Tue8:034.68:506.22:352.22:041.54:367:55Third Quarter9Tue
10Wed9:194.59:276.53:331.62:511.94:357:56Waning Crescent10Wed
11Thu10:274.610:026.84:220.93:382.24:357:56Waning Crescent11Thu
12Fri11:274.810:387.05:050.34:242.54:357:57Waning Crescent12Fri
13Sat12:195.15:46-0.35:092.74:357:57Waning Crescent13Sat
14Sun1:075.36:25-0.85:542.84:357:58New Moon14Sun
15Mon1:525.57:05-1.26:372.94:357:58New Moon15Mon
16Tue12:317.62:365.67:45-1.57:212.94:357:59New Moon16Tue
17Wed1:137.73:205.88:26-1.68:072.84:357:59New Moon17Wed
18Thu1:587.74:035.99:09-1.68:562.84:357:59Waxing Crescent18Thu
19Fri2:467.54:486.09:53-1.49:512.74:358:00Waxing Crescent19Fri
20Sat3:387.15:336.210:38-1.110:542.54:358:00Waxing Crescent20Sat
21Sun4:376.66:196.411:26-0.64:358:00First Quarter21Sun
22Mon5:435.97:066.712:052.212:150.04:368:00First Quarter22Mon
23Tue7:015.37:537.11:201.61:070.74:368:01First Quarter23Tue
24Wed8:264.98:417.42:320.92:021.34:368:01Waxing Gibbous24Wed
25Thu9:504.99:297.63:370.23:001.94:378:01Waxing Gibbous25Thu
26Fri11:055.010:177.84:35-0.53:592.34:378:01Waxing Gibbous26Fri
27Sat12:105.35:29-1.14:572.64:378:01Waxing Gibbous27Sat
28Sun1:055.56:17-1.45:522.74:388:01Full Moon28Sun
29Mon1:535.77:03-1.66:442.74:388:01Full Moon29Mon
30Tue12:387.72:375.87:46-1.67:322.74:398:01Full Moon30Tue
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 4:11 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 transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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