38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

76°
H -°
L 55°
WSW
17mph
Low tide
7:50 pm

Tides Today & Tomorrow in Hidden Harbor, Steamboat Slough, CA

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Hidden Harbor, Steamboat Slough, CA.
Next low tide : in 4h 08m at 7:50 pm (1.3 ft)
Next high tide (tomorrow) : 1:06 am (3.4 ft)
Sunset today : 7:05 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9415414
Common Questions About Tides

Hidden Harbor, Steamboat Slough, CA Tides - Mar 1867

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:253.012:203.56:521.28:290.16:456:06Waning Crescent1Fri
2Sat2:123.21:113.67:491.19:090.06:446:07Waning Crescent2Sat
3Sun2:533.31:563.78:391.09:450.06:426:08Waning Crescent3Sun
4Mon3:293.42:393.79:250.910:160.16:416:09New Moon4Mon
5Tue4:003.43:213.710:080.810:440.16:396:10New Moon5Tue
6Wed4:263.54:033.710:490.711:110.16:386:11New Moon6Wed
7Thu4:493.64:483.611:290.511:390.26:366:12New Moon7Thu
8Fri5:133.75:363.512:110.46:356:13Waxing Crescent8Fri
9Sat5:433.96:313.312:120.312:570.36:336:14Waxing Crescent9Sat
10Sun6:194.07:353.112:500.41:500.36:326:15Waxing Crescent10Sun
11Mon7:024.08:542.91:340.62:570.36:306:16First Quarter11Mon
12Tue7:543.910:172.82:280.84:180.36:296:17First Quarter12Tue
13Wed8:563.811:332.93:341.05:390.36:276:18First Quarter13Wed
14Thu10:133.74:541.16:480.16:266:19First Quarter14Thu
15Fri12:383.111:35 AM3.76:141.17:470.06:246:20Waxing Gibbous15Fri
16Sat1:333.312:463.87:240.98:37-0.16:236:21Waxing Gibbous16Sat
17Sun2:213.51:473.88:260.89:22-0.16:216:22Waxing Gibbous17Sun
18Mon3:043.72:403.89:210.610:020.06:206:23Full Moon18Mon
19Tue3:443.83:293.810:120.510:380.16:186:24Full Moon19Tue
20Wed4:193.84:163.711:000.411:100.26:176:25Full Moon20Wed
21Thu4:513.85:033.511:460.311:390.46:156:26Full Moon21Thu
22Fri5:183.75:523.312:300.36:146:27Waning Gibbous22Fri
23Sat5:413.76:433.112:070.51:140.36:126:28Waning Gibbous23Sat
24Sun6:053.67:403.012:380.72:000.36:116:29Waning Gibbous24Sun
25Mon6:333.68:432.81:140.82:510.36:096:29Waning Gibbous25Mon
26Tue7:103.59:502.81:581.03:510.36:076:30Third Quarter26Tue
27Wed7:573.310:572.82:531.14:550.36:066:31Third Quarter27Wed
28Thu8:583.211:562.94:011.25:570.36:046:32Third Quarter28Thu
29Fri10:163.15:171.26:520.26:036:33Third Quarter29Fri
30Sat12:483.011:36 AM3.16:271.17:380.16:016:34Waning Crescent30Sat
31Sun1:323.212:423.27:270.98:180.16:006:35Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415414)

Common Questions About Hidden Harbor, Steamboat Slough, CA Tides

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Is this week a spring tide or neap tide in Hidden Harbor, Steamboat Slough, CA?

Hidden Harbor, Steamboat Slough, CA is currently in a transitional phase. Tonight's moon is 76% 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 Hidden Harbor, Steamboat Slough, CA 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 Hidden Harbor, Steamboat Slough, CA?

Tide predictions for Hidden Harbor, Steamboat Slough, CA 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 Hidden Harbor, Steamboat Slough, CA?

Tide data for Hidden Harbor, Steamboat Slough, CA is sourced from NOAA Station #9415414. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415414.

What is the moon phase in Hidden Harbor, Steamboat Slough, CA tonight?

Tonight the moon over Hidden Harbor, Steamboat Slough, CA is Waxing Gibbous (76% illuminated). This places Hidden Harbor, Steamboat Slough, CA 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