38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

62°
H -°
L 56°
WSW
19mph
High tide
1:06 am

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

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Hidden Harbor, Steamboat Slough, CA.
Next low tide (tomorrow) : 9:12 am (0.1 ft)
Next high tide (tomorrow) : in 4h 48m at 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 - Oct 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:403.19:303.74:450.24:141.16:095:57Third Quarter1Mon
2Tue11:443.310:553.65:530.25:321.06:105:55Third Quarter2Tue
3Wed12:403.46:520.16:420.86:115:53Waning Crescent3Wed
4Thu12:083.61:293.67:440.17:440.76:125:52Waning Crescent4Thu
5Fri1:103.62:133.78:290.18:400.56:135:50Waning Crescent5Fri
6Sat2:043.62:523.89:090.29:310.46:145:49New Moon6Sat
7Sun2:533.53:273.89:450.310:180.36:145:47New Moon7Sun
8Mon3:393.53:563.810:170.511:030.26:155:46New Moon8Mon
9Tue4:243.44:193.710:450.711:450.26:165:44New Moon9Tue
10Wed5:103.34:373.711:110.86:175:43Waxing Crescent10Wed
11Thu5:573.24:563.712:250.211:40 AM0.96:185:42Waxing Crescent11Thu
12Fri6:473.15:243.71:040.312:151.06:195:40Waxing Crescent12Fri
13Sat7:413.06:003.71:430.312:561.16:205:39Waxing Crescent13Sat
14Sun8:392.96:433.62:270.31:441.26:215:37Waxing Crescent14Sun
15Mon9:392.87:353.43:180.32:421.26:225:36First Quarter15Mon
16Tue10:382.98:393.24:160.33:491.26:235:34First Quarter16Tue
17Wed11:313.09:573.15:160.35:031.16:245:33First Quarter17Wed
18Thu12:183.16:090.26:110.96:255:32First Quarter18Thu
19Fri12:583.36:550.27:120.76:265:30Waxing Gibbous19Fri
20Sat12:303.21:323.47:370.28:060.56:275:29Waxing Gibbous20Sat
21Sun1:303.32:033.68:160.38:570.36:285:28Waxing Gibbous21Sun
22Mon2:263.42:323.98:540.49:470.16:295:26Full Moon22Mon
23Tue3:203.43:044.19:330.510:360.06:305:25Full Moon23Tue
24Wed4:143.43:394.310:150.711:27-0.16:315:24Full Moon24Wed
25Thu5:103.44:184.411:010.86:325:22Waning Gibbous25Thu
26Fri6:083.45:024.412:19-0.111:50 AM0.96:335:21Waning Gibbous26Fri
27Sat7:103.35:514.21:14-0.112:441.06:345:20Waning Gibbous27Sat
28Sun8:133.26:474.02:11-0.11:451.06:355:19Waning Gibbous28Sun
29Mon9:183.27:543.73:130.02:551.16:365:18Third Quarter29Mon
30Tue10:203.39:163.44:160.04:111.06:375:16Third Quarter30Tue
31Wed11:183.410:423.25:170.05:260.86:385:15Third Quarter31Wed
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