Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in San Simeon, CA.

Next low tide : in 3m at 9:51 am (1.9 ft)
Next high tide : 4:56 pm (5.0 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - Jun 1990

< May 1990

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Jul 1990 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Fri	5:43	3.4	6:45	4.8	12:25	1.8	11:53 AM	0.9	5:50	8:14		1	Fri
2	Sat	7:05	3.2	7:18	5.0	1:29	1.2	12:34	1.4	5:49	8:15		2	Sat
3	Sun	8:20	3.1	7:49	5.2	2:21	0.7	1:12	1.8	5:49	8:16		3	Sun
4	Mon	9:21	3.2	8:18	5.4	3:03	0.2	1:46	2.2	5:49	8:16		4	Mon
5	Tue	10:12	3.2	8:47	5.5	3:40	-0.1	2:19	2.4	5:49	8:17		5	Tue
6	Wed	10:57	3.3	9:16	5.6	4:15	-0.4	2:51	2.6	5:48	8:17		6	Wed
7	Thu	11:40	3.3	9:47	5.6	4:50	-0.5	3:24	2.7	5:48	8:18		7	Thu
8	Fri			12:22	3.4	5:26	-0.7	3:59	2.8	5:48	8:18		8	Fri
9	Sat			1:02	3.4	6:02	-0.7	4:36	2.8	5:48	8:19		9	Sat
10	Sun			1:43	3.4	6:39	-0.7	5:18	2.9	5:48	8:19		10	Sun
11	Mon			2:24	3.5	7:16	-0.6	6:07	2.9	5:48	8:20		11	Mon
12	Tue	12:10	5.1	3:05	3.6	7:53	-0.5	7:05	2.9	5:48	8:20		12	Tue
13	Wed	12:54	4.8	3:46	3.8	8:31	-0.3	8:15	2.9	5:48	8:21		13	Wed
14	Thu	1:45	4.4	4:23	4.1	9:10	0.1	9:44	2.6	5:48	8:21		14	Thu
15	Fri	2:52	3.9	4:59	4.5	9:52	0.5	11:13	2.1	5:48	8:22		15	Fri
16	Sat	4:21	3.4	5:36	4.9	10:36	0.9			5:48	8:22		16	Sat
17	Sun	5:57	3.1	6:14	5.4	12:27	1.3	11:22 AM	1.4	5:48	8:22		17	Sun
18	Mon	7:30	3.1	6:57	5.9	1:30	0.5	12:11	1.8	5:48	8:22		18	Mon
19	Tue	8:49	3.2	7:42	6.3	2:25	-0.3	1:03	2.1	5:48	8:23		19	Tue
20	Wed	9:52	3.4	8:30	6.6	3:16	-1.0	1:58	2.3	5:49	8:23		20	Wed
21	Thu	10:47	3.6	9:18	6.8	4:04	-1.5	2:53	2.4	5:49	8:23		21	Thu
22	Fri	11:39	3.7	10:07	6.8	4:53	-1.7	3:49	2.5	5:49	8:23		22	Fri
23	Sat			12:28	3.9	5:40	-1.8	4:45	2.4	5:49	8:24		23	Sat
24	Sun			1:14	4.0	6:27	-1.6	5:45	2.4	5:50	8:24		24	Sun
25	Mon			2:01	4.1	7:12	-1.3	6:46	2.4	5:50	8:24		25	Mon
26	Tue	12:39	5.6	2:47	4.2	7:55	-0.8	7:52	2.3	5:50	8:24		26	Tue
27	Wed	1:32	4.9	3:34	4.4	8:37	-0.2	9:06	2.3	5:51	8:24		27	Wed
28	Thu	2:31	4.2	4:20	4.6	9:18	0.4	10:32	2.0	5:51	8:24		28	Thu
29	Fri	3:44	3.5	5:04	4.8	10:00	1.0	11:53	1.6	5:51	8:24		29	Fri
30	Sat	5:14	3.0	5:45	4.9	10:43	1.6			5:52	8:24		30	Sat
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9412553)

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What time does the tide turn (slack tide) in San Simeon, CA today?

Slack tide in San Simeon, CA is approximately 1:23 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 San Simeon, CA?

San Simeon, CA is currently in a neap phase. Tonight's moon is 53% 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 San Simeon, 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 San Simeon, CA?

Tide predictions for San Simeon, 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 San Simeon, CA?

Tide data for San Simeon, CA is sourced from NOAA Station #9412553. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9412553.

What is the moon phase in San Simeon, CA tonight?

Tonight the moon over San Simeon, CA is First Quarter (53% illuminated). This places San Simeon, 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

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