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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Hidden Harbor, Steamboat Slough, CA.
Next low tide : 3:06 pm (0.8 ft)
Next high tide : in 10m at 9:25 am (2.9 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:24 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #9415414
Common Questions About Tides

Hidden Harbor, Steamboat Slough, CA Tides - Apr 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:413.511:202.82:421.45:090.25:516:29Third Quarter1Mon
2Tue8:403.33:551.56:120.25:506:30Third Quarter2Tue
3Wed12:192.99:58 AM3.25:181.57:050.15:486:31Third Quarter3Wed
4Thu1:073.111:26 AM3.16:311.37:490.05:476:32Waning Crescent4Thu
5Fri1:483.212:383.27:311.18:270.05:456:33Waning Crescent5Fri
6Sat2:223.21:353.38:220.88:590.05:446:34Waning Crescent6Sat
7Sun2:503.32:263.39:080.69:280.15:426:34Waning Crescent7Sun
8Mon3:133.43:153.39:520.49:550.25:416:35New Moon8Mon
9Tue3:333.64:043.310:360.210:240.45:396:36New Moon9Tue
10Wed3:553.94:563.211:200.010:570.65:386:37New Moon10Wed
11Thu4:224.15:533.112:06-0.15:366:38Waxing Crescent11Thu
12Fri4:564.36:573.012:56-0.15:356:39Waxing Crescent12Fri
13Sat5:354.48:092.912:171.01:55-0.15:336:40Waxing Crescent13Sat
14Sun6:224.39:252.81:071.23:040.05:326:41Waxing Crescent14Sun
15Mon7:174.010:372.92:101.44:200.05:306:42First Quarter15Mon
16Tue8:263.711:413.13:311.45:330.05:296:43First Quarter16Tue
17Wed9:573.45:021.36:35-0.15:286:44First Quarter17Wed
18Thu12:353.311:31 AM3.36:221.17:27-0.15:266:45Waxing Gibbous18Thu
19Fri1:223.412:453.37:290.88:11-0.15:256:46Waxing Gibbous19Fri
20Sat2:033.61:453.38:270.58:500.05:246:47Waxing Gibbous20Sat
21Sun2:403.72:383.29:190.29:240.25:226:47Waxing Gibbous21Sun
22Mon3:113.83:283.210:080.19:540.45:216:48Full Moon22Mon
23Tue3:383.84:173.110:540.010:200.65:206:49Full Moon23Tue
24Wed3:583.85:063.011:37-0.110:450.85:186:50Full Moon24Wed
25Thu4:143.95:572.912:18-0.15:176:51Full Moon25Thu
26Fri4:323.96:512.912:590.05:166:52Waning Gibbous26Fri
27Sat4:584.07:482.91:390.05:146:53Waning Gibbous27Sat
28Sun5:323.98:482.812:311.42:230.15:136:54Waning Gibbous28Sun
29Mon6:133.89:482.81:211.53:130.15:126:55Waning Gibbous29Mon
30Tue7:033.510:442.92:201.54:090.15:116:56Third Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415414)

Common Questions About Hidden Harbor, Steamboat Slough, CA Tides

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What time does the tide turn (slack tide) in Hidden Harbor, Steamboat Slough, CA today?

Slack tide in Hidden Harbor, Steamboat Slough, CA is approximately 12:15 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 37% 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 First Quarter (37% 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