Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide (tomorrow) : 4:26 am (-0.3 ft)
Next high tide : in 6h 00m at 8:53 pm (7.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Aug 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:396.92:315.57:48-0.67:302.76:068:40New Moon1Wed
2Thu1:207.13:015.78:21-0.78:092.56:078:38New Moon2Thu
3Fri1:597.13:305.98:53-0.78:462.36:088:37New Moon3Fri
4Sat2:367.13:586.29:22-0.69:252.06:098:36New Moon4Sat
5Sun3:156.94:266.49:51-0.410:041.86:108:35Waxing Crescent5Sun
6Mon3:556.64:556.610:20-0.110:471.56:118:33Waxing Crescent6Mon
7Tue4:386.15:246.810:500.411:351.26:128:32Waxing Crescent7Tue
8Wed5:285.65:566.911:231.06:138:31First Quarter8Wed
9Thu6:295.06:357.012:300.912:001.66:148:29First Quarter9Thu
10Fri7:454.57:237.11:330.712:462.36:158:28First Quarter10Fri
11Sat9:184.48:247.22:450.31:482.86:168:27First Quarter11Sat
12Sun10:514.69:357.33:58-0.13:103.16:188:25Waxing Gibbous12Sun
13Mon12:025.05:06-0.64:333.06:198:24Waxing Gibbous13Mon
14Tue12:555.56:05-1.05:452.76:208:22Waxing Gibbous14Tue
15Wed1:396.06:58-1.46:472.36:218:21Full Moon15Wed
16Thu12:488.12:206.47:44-1.57:421.76:228:19Full Moon16Thu
17Fri1:428.12:586.88:27-1.48:331.26:238:18Full Moon17Fri
18Sat2:338.03:357.19:07-1.19:220.96:248:16Full Moon18Sat
19Sun3:237.54:107.39:45-0.610:100.66:258:15Waning Gibbous19Sun
20Mon4:137.04:467.310:210.110:590.56:268:13Waning Gibbous20Mon
21Tue5:036.35:217.210:570.811:490.56:288:12Waning Gibbous21Tue
22Wed5:575.65:587.011:341.66:298:10Third Quarter22Wed
23Thu6:595.06:386.712:440.612:142.36:308:08Third Quarter23Thu
24Fri8:144.57:266.41:460.71:032.96:318:07Third Quarter24Fri
25Sat9:494.48:276.22:550.82:113.36:328:05Third Quarter25Sat
26Sun11:204.69:366.14:060.73:343.56:338:03Waning Crescent26Sun
27Mon12:154.95:080.54:483.36:348:02Waning Crescent27Mon
28Tue12:525.25:590.35:453.16:358:00Waning Crescent28Tue
29Wed1:225.56:410.06:312.76:367:58Waning Crescent29Wed
30Thu12:216.81:495.97:16-0.17:112.36:387:57New Moon30Thu
31Fri1:037.02:166.27:48-0.27:491.96:397:55New Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9432845)

Common Questions About Coos Bay, OR Tides

Show All
What time does the tide turn (slack tide) in Coos Bay, OR today?

Slack tide in Coos Bay, OR is approximately 12:39 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 31% 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 Third Quarter (31% 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