38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

57°
H 88°
L 56°
WSW
7mph
Low tide
5:40 am

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

TIDE TIMES for Friday, September 18, 2026
The tide is currently falling in Hidden Harbor, Steamboat Slough, CA.
Next low tide : in 55m at 5:40 am (0.4 ft)
Next high tide : 11:37 am (2.8 ft)
Sunset today : 7:10 pm
Sunrise tomorrow : 6:51 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415414
Common Questions About Tides

Hidden Harbor, Steamboat Slough, CA Tides - Oct 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:493.25:263.712:210.412:000.76:095:57Waning Gibbous1Sun
2Mon6:433.15:493.71:060.312:300.86:105:55Waning Gibbous2Mon
3Tue7:442.96:183.71:520.31:061.06:115:54Waning Gibbous3Tue
4Wed8:502.86:553.72:430.41:501.26:115:52Third Quarter4Wed
5Thu9:582.87:423.53:430.42:461.46:125:51Third Quarter5Thu
6Fri11:042.98:413.44:500.43:551.46:135:49Third Quarter6Fri
7Sat12:023.05:520.35:111.46:145:48Third Quarter7Sat
8Sun12:523.16:460.26:201.36:155:46Waning Crescent8Sun
9Mon1:343.27:320.17:181.16:165:45Waning Crescent9Mon
10Tue12:233.42:103.38:100.18:100.96:175:43Waning Crescent10Tue
11Wed1:203.42:403.48:440.18:570.66:185:42Waning Crescent11Wed
12Thu2:123.53:053.59:140.29:420.46:195:40New Moon12Thu
13Fri3:013.53:273.69:440.310:270.36:205:39New Moon13Fri
14Sat3:513.53:493.810:140.411:130.16:215:38New Moon14Sat
15Sun4:433.44:164.110:490.66:225:36New Moon15Sun
16Mon5:383.34:504.212:000.011:28 AM0.76:235:35Waxing Crescent16Mon
17Tue6:393.25:304.312:520.012:120.96:245:33Waxing Crescent17Tue
18Wed7:473.16:174.21:490.01:021.16:255:32Waxing Crescent18Wed
19Thu8:593.07:124.02:540.02:031.26:265:31First Quarter19Thu
20Fri10:103.08:213.74:060.13:171.36:275:29First Quarter20Fri
21Sat11:153.29:513.55:150.04:431.36:285:28First Quarter21Sat
22Sun12:123.36:170.06:031.16:295:27Waxing Gibbous22Sun
23Mon1:013.57:11-0.17:120.86:305:25Waxing Gibbous23Mon
24Tue12:363.41:453.67:580.08:120.56:315:24Waxing Gibbous24Tue
25Wed1:373.42:243.78:400.09:050.36:325:23Waxing Gibbous25Wed
26Thu2:303.32:583.89:170.29:550.26:335:22Full Moon26Thu
27Fri3:203.33:273.89:500.410:410.16:345:20Full Moon27Fri
28Sat4:083.23:503.810:200.611:250.16:355:19Full Moon28Sat
29Sun4:573.14:093.810:480.86:365:18Full Moon29Sun
30Mon5:483.04:293.912:070.111:18 AM1.06:375:17Waning Gibbous30Mon
31Tue6:413.04:563.912:470.111:53 AM1.26:385:16Waning Gibbous31Tue
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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Hidden Harbor, Steamboat Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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