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 3h 56m 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 - Sep 1929

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Oct 1929 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sun	1:13	4.4	3:21	3.4	9:35	-0.1	8:55	1.2	5:36	6:37		1	Sun
2	Mon	2:14	4.4	4:02	3.5	10:18	-0.1	9:53	1.0	5:36	6:35		2	Mon
3	Tue	3:10	4.3	4:41	3.6	10:57	-0.1	10:48	0.8	5:37	6:34		3	Tue
4	Wed	4:02	4.2	5:17	3.7	11:32	0.0	11:40	0.7	5:38	6:32		4	Wed
5	Thu	4:54	3.9	5:49	3.7			12:03	0.2	5:39	6:31		5	Thu
6	Fri	5:47	3.6	6:19	3.7	12:32	0.6	12:33	0.3	5:40	6:29		6	Fri
7	Sat	6:44	3.3	6:47	3.8	1:24	0.5	1:02	0.6	5:41	6:28		7	Sat
8	Sun	7:47	3.1	7:16	3.8	2:20	0.5	1:34	0.8	5:42	6:26		8	Sun
9	Mon	8:58	2.9	7:50	3.7	3:21	0.5	2:14	1.1	5:42	6:24		9	Mon
10	Tue	10:13	2.8	8:34	3.7	4:29	0.4	3:06	1.3	5:43	6:23		10	Tue
11	Wed	11:25	2.9	9:33	3.6	5:38	0.4	4:11	1.5	5:44	6:21		11	Wed
12	Thu			12:29	3.0	6:41	0.3	5:27	1.6	5:45	6:20		12	Thu
13	Fri			1:22	3.2	7:35	0.2	6:37	1.5	5:46	6:18		13	Fri
14	Sat			2:08	3.3	8:21	0.1	7:36	1.4	5:47	6:17		14	Sat
15	Sun	12:55	3.6	2:48	3.4	9:01	0.0	8:27	1.2	5:48	6:15		15	Sun
16	Mon	1:44	3.7	3:22	3.4	9:35	0.0	9:13	1.0	5:48	6:13		16	Mon
17	Tue	2:28	3.7	3:51	3.4	10:05	0.1	9:55	0.9	5:49	6:12		17	Tue
18	Wed	3:10	3.7	4:14	3.4	10:30	0.1	10:35	0.7	5:50	6:10		18	Wed
19	Thu	3:52	3.6	4:31	3.5	10:53	0.2	11:14	0.6	5:51	6:09		19	Thu
20	Fri	4:36	3.5	4:49	3.7	11:16	0.3	11:54	0.4	5:52	6:07		20	Fri
21	Sat	5:24	3.3	5:13	4.0	11:45	0.5			5:53	6:06		21	Sat
22	Sun	6:18	3.1	5:45	4.1	12:37	0.4	12:19	0.7	5:54	6:04		22	Sun
23	Mon	7:23	2.9	6:25	4.2	1:25	0.3	1:00	0.9	5:55	6:02		23	Mon
24	Tue	8:42	2.8	7:12	4.2	2:27	0.3	1:49	1.2	5:55	6:01		24	Tue
25	Wed	10:07	2.8	8:09	4.1	3:49	0.4	2:50	1.4	5:56	5:59		25	Wed
26	Thu	11:23	2.9	9:20	4.0	5:15	0.3	4:08	1.5	5:57	5:58		26	Thu
27	Fri			12:27	3.0	6:28	0.2	5:35	1.4	5:58	5:56		27	Fri
28	Sat			1:21	3.2	7:28	0.0	6:52	1.2	5:59	5:55		28	Sat
29	Sun	12:10	3.8	2:06	3.4	8:18	0.0	7:58	1.0	6:00	5:53		29	Sun
30	Mon	1:18	3.9	2:47	3.5	9:02	-0.1	8:56	0.7	6:01	5:51		30	Mon
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9415414)

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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

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