Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in San Simeon, CA.
Next low tide (tomorrow) : in 1h 54m at 11:45 pm (1.1 ft)
Next high tide : 7:08 am (3.1 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - Dec 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:224.75:333.312:081.86:554:51First Quarter1Thu
2Fri5:545.16:443.412:531.26:564:51Waxing Gibbous2Fri
3Sat6:275.57:433.51:340.56:574:51Waxing Gibbous3Sat
4Sun7:015.98:343.712:312.02:14-0.16:584:51Waxing Gibbous4Sun
5Mon7:376.29:223.81:142.12:54-0.66:594:51Full Moon5Mon
6Tue8:166.510:104.01:572.23:36-1.17:004:51Full Moon6Tue
7Wed8:586.710:594.02:422.34:21-1.37:004:51Full Moon7Wed
8Thu9:436.611:504.13:312.45:07-1.47:014:51Full Moon8Thu
9Fri10:316.44:252.45:54-1.27:024:51Waning Gibbous9Fri
10Sat12:414.211:23 AM6.05:262.46:42-0.97:034:51Waning Gibbous10Sat
11Sun1:344.412:215.46:342.57:32-0.57:044:51Waning Gibbous11Sun
12Mon2:304.61:274.77:542.48:250.07:044:52Third Quarter12Mon
13Tue3:264.82:494.09:272.19:200.67:054:52Third Quarter13Tue
14Wed4:185.14:213.610:521.510:161.17:064:52Third Quarter14Wed
15Thu5:075.45:513.412:040.97:064:52Third Quarter15Thu
16Fri5:535.77:113.41:030.37:074:53Waning Crescent16Fri
17Sat6:365.88:143.612:021.91:52-0.17:084:53Waning Crescent17Sat
18Sun7:165.99:053.712:502.22:34-0.57:084:53Waning Crescent18Sun
19Mon7:526.09:483.71:342.43:12-0.67:094:54New Moon19Mon
20Tue8:275.910:273.82:132.53:48-0.77:104:54New Moon20Tue
21Wed9:005.811:043.82:502.64:23-0.77:104:55New Moon21Wed
22Thu9:335.711:403.83:262.64:56-0.67:114:55New Moon22Thu
23Fri10:065.54:042.65:29-0.47:114:56Waxing Crescent23Fri
24Sat12:153.810:41 AM5.24:452.76:02-0.27:114:56Waxing Crescent24Sat
25Sun12:523.911:17 AM4.85:312.76:340.17:124:57Waxing Crescent25Sun
26Mon1:303.911:56 AM4.46:232.77:060.47:124:57Waxing Crescent26Mon
27Tue2:104.112:413.97:262.77:410.87:134:58Waxing Crescent27Tue
28Wed2:524.21:433.48:512.58:191.27:134:59First Quarter28Wed
29Thu3:354.43:173.010:202.19:051.57:134:59First Quarter29Thu
30Fri4:174.75:002.811:311.69:571.97:145:00First Quarter30Fri
31Sat4:595.16:273.012:270.97:145:01First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412553)

Common Questions About San Simeon, CA Tides

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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 3:26 am — 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 47% 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 (47% 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