Tides Today & Tomorrow in Coos Bay, OR

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in Coos Bay, OR.
Next low tide : 7:22 am (-0.5 ft)
Next high tide : in 3h 00m at 12:08 am (6.9 ft)
Sunset today : 8:45 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9432845
Common Questions About Tides

Coos Bay, OR Tides - Aug 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:417.33:215.98:39-0.98:312.46:068:39Full Moon1Mon
2Tue2:217.23:536.09:13-0.89:102.36:078:38Full Moon2Tue
3Wed3:007.04:236.09:45-0.69:482.16:088:37Waning Gibbous3Wed
4Thu3:376.74:526.110:16-0.210:272.06:098:36Waning Gibbous4Thu
5Fri4:166.45:226.210:450.111:091.96:108:34Waning Gibbous5Fri
6Sat4:565.95:516.211:150.611:551.86:118:33Waning Gibbous6Sat
7Sun5:425.46:236.311:451.26:138:32Third Quarter7Sun
8Mon6:374.86:586.312:481.612:191.76:148:30Third Quarter8Mon
9Tue7:484.47:416.41:481.41:012.36:158:29Third Quarter9Tue
10Wed9:154.28:336.52:541.01:562.76:168:28Third Quarter10Wed
11Thu10:434.49:336.84:000.63:073.06:178:26Waning Crescent11Thu
12Fri11:534.810:357.15:020.04:223.16:188:25Waning Crescent12Fri
13Sat12:465.25:57-0.55:292.96:198:23Waning Crescent13Sat
14Sun1:315.76:47-1.16:292.66:208:22Waning Crescent14Sun
15Mon12:297.92:126.17:34-1.47:232.16:218:20New Moon15Mon
16Tue1:238.22:526.58:17-1.68:151.66:228:19New Moon16Tue
17Wed2:158.33:316.99:00-1.69:061.26:248:17New Moon17Wed
18Thu3:078.14:107.39:41-1.39:570.86:258:16Waxing Crescent18Thu
19Fri4:007.64:507.510:21-0.710:510.56:268:14Waxing Crescent19Fri
20Sat4:557.05:317.611:030.011:490.46:278:13Waxing Crescent20Sat
21Sun5:556.26:147.511:470.96:288:11First Quarter21Sun
22Mon7:035.57:027.312:510.312:351.76:298:09First Quarter22Mon
23Tue8:235.07:577.01:590.31:332.46:308:08First Quarter23Tue
24Wed9:554.89:006.83:120.22:442.96:318:06First Quarter24Wed
25Thu11:215.010:066.74:220.14:033.16:328:04Waxing Gibbous25Thu
26Fri12:235.35:25-0.15:143.06:348:03Waxing Gibbous26Fri
27Sat1:085.66:18-0.26:112.86:358:01Waxing Gibbous27Sat
28Sun12:026.91:445.87:02-0.36:582.56:367:59Waxing Gibbous28Sun
29Mon12:487.02:146.07:40-0.37:382.26:377:58Full Moon29Mon
30Tue1:307.12:426.28:13-0.38:151.96:387:56Full Moon30Tue
31Wed2:087.03:096.38:43-0.18:501.76:397:54Full Moon31Wed
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 3:45 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 spring phase. Tonight's moon is 93% 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 Gibbous (93% 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