Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide (tomorrow) : 2:59 am (0.8 ft)
Next high tide : in 4h 52m at 7:55 pm (6.7 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Apr 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:027.22:466.48:280.28:251.75:576:43Waxing Crescent1Thu
2Fri2:307.23:256.19:020.28:552.05:556:44Waxing Crescent2Fri
3Sat3:007.14:065.89:390.29:272.35:546:45Waxing Crescent3Sat
4Sun3:316.94:525.610:190.410:042.65:526:47Waxing Crescent4Sun
5Mon4:086.75:455.311:050.510:492.95:506:48Waxing Crescent5Mon
6Tue4:526.56:475.212:000.75:486:49First Quarter6Tue
7Wed5:516.37:555.31:030.85:476:50First Quarter7Wed
8Thu7:056.18:585.61:103.12:080.85:456:51First Quarter8Thu
9Fri8:256.29:516.12:302.73:100.75:436:53Waxing Gibbous9Fri
10Sat9:396.410:366.73:402.14:050.65:416:54Waxing Gibbous10Sat
11Sun10:436.711:187.34:391.34:560.55:406:55Waxing Gibbous11Sun
12Mon11:417.011:597.85:320.55:440.55:386:56Waxing Gibbous12Mon
13Tue12:367.26:21-0.36:290.65:366:57Full Moon13Tue
14Wed12:418.31:297.37:09-1.07:140.85:356:58Full Moon14Wed
15Thu1:238.52:227.27:57-1.47:591.15:337:00Full Moon15Thu
16Fri2:068.63:157.08:45-1.58:461.45:317:01Waning Gibbous16Fri
17Sat2:518.44:096.79:34-1.39:351.85:307:02Waning Gibbous17Sat
18Sun3:398.05:056.410:26-1.010:292.25:287:03Waning Gibbous18Sun
19Mon4:317.46:066.111:22-0.511:332.55:267:04Third Quarter19Mon
20Tue5:306.87:115.912:230.15:257:05Third Quarter20Tue
21Wed6:376.28:175.912:482.61:270.55:237:07Third Quarter21Wed
22Thu7:525.89:176.12:072.52:310.85:227:08Third Quarter22Thu
23Fri9:075.710:056.33:192.23:291.15:207:09Waning Crescent23Fri
24Sat10:125.710:456.64:181.74:191.25:197:10Waning Crescent24Sat
25Sun12:085.86:061.26:031.46:178:11Waning Crescent25Sun
26Mon12:206.812:555.96:470.76:421.66:168:13Waning Crescent26Mon
27Tue12:517.01:386.07:240.37:171.76:148:14New Moon27Tue
28Wed1:227.12:186.17:590.07:511.96:138:15New Moon28Wed
29Thu1:527.22:576.18:33-0.38:242.06:118:16New Moon29Thu
30Fri2:237.23:366.09:06-0.48:572.26:108:17New Moon30Fri
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 11:27 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 neap phase. Tonight's moon is 53% 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 minimum.

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 (53% illuminated). This places Coos Bay, OR in a neap tide cycle, so tidal ranges are near their weekly minimum 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