Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in San Simeon, CA.
Next low tide (tomorrow) : 12:26 am (1.1 ft)
Next high tide : in 3h 53m at 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 - May 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:284.66:183.911:06-0.411:272.56:127:51First Quarter1Tue
2Wed4:534.27:034.212:04-0.16:117:51First Quarter2Wed
3Thu6:124.07:394.512:452.012:530.26:107:52Waxing Gibbous3Thu
4Fri7:223.88:104.81:461.41:350.66:097:53Waxing Gibbous4Fri
5Sat8:243.78:375.02:350.92:101.06:087:54Waxing Gibbous5Sat
6Sun9:163.69:015.23:160.42:401.46:077:55Waxing Gibbous6Sun
7Mon10:033.69:245.33:520.13:071.76:067:56Full Moon7Mon
8Tue10:473.59:485.44:27-0.23:312.06:057:56Full Moon8Tue
9Wed11:323.410:135.45:02-0.43:562.36:047:57Full Moon9Wed
10Thu12:183.35:38-0.54:232.56:037:58Full Moon10Thu
11Fri1:073.36:15-0.54:512.76:027:59Full Moon11Fri
12Sat1:593.26:55-0.45:232.86:018:00Waning Gibbous12Sat
13Sun2:593.27:38-0.46:022.96:018:01Waning Gibbous13Sun
14Mon12:234.94:073.28:24-0.26:553.16:008:01Waning Gibbous14Mon
15Tue1:094.65:023.49:15-0.18:153.15:598:02Waning Gibbous15Tue
16Wed2:054.35:393.610:070.010:073.05:588:03Third Quarter16Wed
17Thu3:204.06:093.910:560.211:382.55:578:04Third Quarter17Thu
18Fri4:483.76:374.411:410.45:578:05Third Quarter18Fri
19Sat6:113.67:074.912:461.812:240.75:568:05Waning Crescent19Sat
20Sun7:293.67:395.41:421.01:051.05:558:06Waning Crescent20Sun
21Mon8:383.68:155.92:330.11:471.45:558:07Waning Crescent21Mon
22Tue9:413.78:536.43:22-0.72:301.75:548:08Waning Crescent22Tue
23Wed10:403.79:356.64:10-1.33:142.05:548:08New Moon23Wed
24Thu11:393.710:196.75:00-1.74:012.25:538:09New Moon24Thu
25Fri12:393.75:51-1.84:522.45:538:10New Moon25Fri
26Sat1:373.76:43-1.75:492.55:528:10Waxing Crescent26Sat
27Sun2:363.87:35-1.56:542.65:528:11Waxing Crescent27Sun
28Mon12:545.73:363.98:28-1.18:072.75:518:12Waxing Crescent28Mon
29Tue1:535.14:334.19:22-0.69:352.65:518:13First Quarter29Tue
30Wed3:014.45:234.310:16-0.111:072.35:508:13First Quarter30Wed
31Thu4:203.86:064.611:060.45:508:14First Quarter31Thu
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 8:41 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