38.1833’ N, 121.6550’ W

Hidden Harbor, Steamboat Slough, CA

76°
H 77°
L 56°
WSW
15mph
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 18m 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 - May 1867

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:483.62:103.18:460.38:300.45:167:04Waning Crescent1Wed
2Thu2:163.83:043.29:340.19:080.55:157:05New Moon2Thu
3Fri2:444.03:573.210:220.09:490.75:147:06New Moon3Fri
4Sat3:164.24:523.211:10-0.110:340.85:137:07New Moon4Sat
5Sun3:534.45:483.211:58-0.211:220.95:127:08New Moon5Sun
6Mon4:354.46:473.212:49-0.25:117:08Waxing Crescent6Mon
7Tue5:214.47:493.212:151.01:42-0.25:107:09Waxing Crescent7Tue
8Wed6:134.18:513.21:131.12:39-0.25:097:10Waxing Crescent8Wed
9Thu7:143.89:533.32:201.13:40-0.15:087:11First Quarter9Thu
10Fri8:273.510:513.43:361.14:40-0.15:077:12First Quarter10Fri
11Sat9:553.211:463.64:540.95:390.05:067:13First Quarter11Sat
12Sun11:183.06:070.76:320.15:057:14Waxing Gibbous12Sun
13Mon12:353.712:293.07:120.47:190.25:047:15Waxing Gibbous13Mon
14Tue1:183.81:303.08:100.28:020.35:037:16Waxing Gibbous14Tue
15Wed1:573.92:253.09:030.08:400.55:027:17Waxing Gibbous15Wed
16Thu2:314.03:163.19:51-0.19:160.75:017:17Full Moon16Thu
17Fri2:594.04:053.110:37-0.19:490.95:007:18Full Moon17Fri
18Sat3:224.04:533.111:19-0.110:221.15:007:19Full Moon18Sat
19Sun3:424.05:403.111:59-0.110:571.24:597:20Full Moon19Sun
20Mon4:054.06:273.112:36-0.14:587:21Waning Gibbous20Mon
21Tue4:343.97:143.11:09-0.14:577:22Waning Gibbous21Tue
22Wed5:113.88:013.012:191.31:410.04:577:22Waning Gibbous22Wed
23Thu5:543.78:493.01:061.32:140.04:567:23Waning Gibbous23Thu
24Fri6:423.49:373.02:001.32:510.04:557:24Third Quarter24Fri
25Sat7:393.210:233.13:011.23:350.04:557:25Third Quarter25Sat
26Sun8:472.911:063.24:111.14:240.14:547:26Third Quarter26Sun
27Mon10:112.711:443.45:240.95:140.24:547:26Third Quarter27Mon
28Tue11:382.76:310.76:030.34:537:27Waning Crescent28Tue
29Wed12:193.612:512.87:310.56:510.54:537:28Waning Crescent29Wed
30Thu12:523.91:562.98:270.27:370.74:527:29Waning Crescent30Thu
31Fri1:264.22:553.09:190.08:260.94:527:29Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415414)

Common Questions About Hidden Harbor, Steamboat Slough, CA Tides

Collapse All
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