38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

63°
H 80°
L 55°
WSW
16mph
High tide
2:23 pm

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 : 7:50 pm (1.3 ft)
Next high tide : in 5h 11m at 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 - Sep 1867

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:433.86:223.812:290.612:350.45:426:44Waxing Crescent1Sun
2Mon6:383.56:573.81:210.61:090.55:436:42Waxing Crescent2Mon
3Tue7:393.37:333.72:160.51:460.75:446:41Waxing Crescent3Tue
4Wed8:453.18:143.63:160.52:280.95:456:39First Quarter4Wed
5Thu9:562.99:043.64:200.53:201.15:466:38First Quarter5Thu
6Fri11:052.910:053.55:260.44:231.25:476:36First Quarter6Fri
7Sat12:083.06:280.35:311.35:486:34First Quarter7Sat
8Sun1:033.27:230.26:361.25:496:33Waxing Gibbous8Sun
9Mon12:103.61:513.38:100.27:331.25:496:31Waxing Gibbous9Mon
10Tue1:013.62:333.48:510.18:241.15:506:30Waxing Gibbous10Tue
11Wed1:473.73:103.49:270.29:101.05:516:28Waxing Gibbous11Wed
12Thu2:293.73:423.59:590.29:530.95:526:27Full Moon12Thu
13Fri3:093.74:083.510:280.310:340.75:536:25Full Moon13Fri
14Sat3:503.74:303.610:530.311:130.65:546:24Full Moon14Sat
15Sun4:333.64:513.711:200.411:530.55:556:22Full Moon15Sun
16Mon5:193.55:183.911:510.55:556:20Waning Gibbous16Mon
17Tue6:103.45:524.012:350.512:270.65:566:19Waning Gibbous17Tue
18Wed7:103.26:344.11:230.41:100.75:576:17Waning Gibbous18Wed
19Thu8:213.07:234.12:210.42:010.95:586:16Third Quarter19Thu
20Fri9:412.98:214.03:360.43:011.05:596:14Third Quarter20Fri
21Sat10:563.09:333.94:570.44:141.16:006:13Third Quarter21Sat
22Sun12:033.16:100.35:341.16:016:11Third Quarter22Sun
23Mon1:003.37:110.26:481.06:026:09Waning Crescent23Mon
24Tue12:103.91:493.58:040.17:520.86:026:08Waning Crescent24Tue
25Wed1:153.92:343.78:510.18:500.66:036:06Waning Crescent25Wed
26Thu2:123.93:153.89:330.19:450.56:046:05New Moon26Thu
27Fri3:053.93:523.810:120.210:360.46:056:03New Moon27Fri
28Sat3:563.84:263.910:480.311:250.36:066:02New Moon28Sat
29Sun4:463.64:563.811:210.56:076:00Waxing Crescent29Sun
30Mon5:373.55:243.812:130.311:54 AM0.76:085:58Waxing Crescent30Mon
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