38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

58°
H 81°
L 55°
WSW
14mph
Low tide
8:31 am

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 3h 27m at 8:31 am (0.1 ft)
Next high tide : 2:23 pm (3.2 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 - Jan 1868

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:553.27:582.92:230.13:081.07:305:04First Quarter1Wed
2Thu9:313.39:162.73:040.24:190.97:305:05First Quarter2Thu
3Fri10:113.510:522.53:530.45:360.77:305:06First Quarter3Fri
4Sat10:533.74:460.66:470.57:305:06First Quarter4Sat
5Sun12:172.611:37 AM3.95:420.87:490.37:305:07Waxing Gibbous5Sun
6Mon1:272.812:244.26:401.08:460.17:305:08Waxing Gibbous6Mon
7Tue2:283.01:114.57:371.19:38-0.17:305:09Waxing Gibbous7Tue
8Wed3:233.22:014.68:361.210:27-0.27:305:10Full Moon8Wed
9Thu4:153.32:514.79:351.211:14-0.37:305:11Full Moon9Thu
10Fri5:043.53:434.710:331.211:59-0.37:305:12Full Moon10Fri
11Sat5:523.54:364.511:311.17:305:13Waning Gibbous11Sat
12Sun6:393.65:324.312:42-0.312:301.07:305:14Waning Gibbous12Sun
13Mon7:263.66:313.91:24-0.21:300.97:295:15Waning Gibbous13Mon
14Tue8:143.77:363.52:06-0.12:330.87:295:16Waning Gibbous14Tue
15Wed9:033.78:503.12:490.13:430.77:295:17Third Quarter15Wed
16Thu9:533.710:102.93:360.34:550.57:285:18Third Quarter16Thu
17Fri10:453.711:262.84:270.56:060.47:285:19Third Quarter17Fri
18Sat11:353.85:210.77:110.27:285:20Waning Crescent18Sat
19Sun12:362.812:233.96:170.98:080.07:275:21Waning Crescent19Sun
20Mon1:373.01:063.97:121.18:59-0.17:275:22Waning Crescent20Mon
21Tue2:313.11:444.08:031.29:45-0.17:265:23Waning Crescent21Tue
22Wed3:203.32:184.08:511.310:26-0.17:265:24New Moon22Wed
23Thu4:053.42:494.09:351.311:02-0.17:255:26New Moon23Thu
24Fri4:453.43:203.910:181.311:340.07:245:27New Moon24Fri
25Sat5:223.43:543.910:571.37:245:28New Moon25Sat
26Sun5:553.44:303.812:010.011:36 AM1.27:235:29New Moon26Sun
27Mon6:243.35:103.712:220.012:141.17:225:30Waxing Crescent27Mon
28Tue6:483.35:533.512:430.012:531.07:225:31Waxing Crescent28Tue
29Wed7:113.46:423.21:080.11:370.97:215:32Waxing Crescent29Wed
30Thu7:393.57:412.91:410.22:280.87:205:33Waxing Crescent30Thu
31Fri8:153.68:592.72:220.33:330.87:195:35First Quarter31Fri
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