Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in San Simeon, CA.
Next low tide : in 54m at 11:14 am (3.3 ft)
Next high tide : 5:54 pm (4.9 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:28 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - Apr 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:065.08:425.22:040.72:25-0.35:516:25Waning Crescent1Mon
2Tue8:594.99:145.52:540.03:010.15:506:26New Moon2Tue
3Wed9:524.69:495.83:43-0.43:370.65:496:27New Moon3Wed
4Thu10:484.310:255.84:33-0.74:141.15:476:28New Moon4Thu
5Fri11:463.911:045.75:24-0.84:511.65:466:29Waxing Crescent5Fri
6Sat12:503.56:17-0.75:312.15:446:29Waxing Crescent6Sat
7Sun2:063.27:14-0.56:142.55:436:30Waxing Crescent7Sun
8Mon12:335.03:423.28:20-0.27:122.85:426:31First Quarter8Mon
9Tue1:304.65:103.39:340.18:552.95:406:32First Quarter9Tue
10Wed2:464.26:103.510:440.210:432.85:396:33First Quarter10Wed
11Thu4:104.06:483.711:420.211:552.45:376:33First Quarter11Thu
12Fri5:224.07:163.912:280.35:366:34Waxing Gibbous12Fri
13Sat6:234.07:384.112:462.01:040.45:356:35Waxing Gibbous13Sat
14Sun7:134.07:594.31:271.51:340.65:336:36Waxing Gibbous14Sun
15Mon7:564.08:184.62:031.11:590.85:326:37Waxing Gibbous15Mon
16Tue8:374.08:394.82:370.72:231.05:316:38Waxing Gibbous16Tue
17Wed9:173.99:015.13:110.32:471.35:306:38Full Moon17Wed
18Thu9:593.79:255.23:470.03:111.65:286:39Full Moon18Thu
19Fri10:453.69:525.34:25-0.33:371.95:276:40Full Moon19Fri
20Sat11:353.410:225.45:06-0.44:052.15:266:41Waning Gibbous20Sat
21Sun12:313.25:51-0.54:362.45:246:42Waning Gibbous21Sun
22Mon1:383.16:41-0.55:132.65:236:43Waning Gibbous22Mon
23Tue3:013.17:37-0.46:052.85:226:43Waning Gibbous23Tue
24Wed12:365.04:173.28:42-0.47:313.05:216:44Third Quarter24Wed
25Thu1:474.75:093.59:48-0.39:322.85:206:45Third Quarter25Thu
26Fri3:144.45:483.910:46-0.311:042.35:186:46Third Quarter26Fri
27Sat4:394.36:224.411:37-0.15:176:47Third Quarter27Sat
28Sun5:564.26:564.912:141.512:220.15:166:48Waning Crescent28Sun
29Mon7:054.27:295.41:120.81:040.45:156:48Waning Crescent29Mon
30Tue8:064.28:035.82:030.01:440.85:146:49Waning Crescent30Tue
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 2:34 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 transitional phase. Tonight's moon is 66% 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 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 (66% illuminated). This places San Simeon, 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