Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in San Simeon, CA.
Next low tide : 7:38 am (1.4 ft)
Next high tide : in 2h 02m at 1:47 am (4.1 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - Feb 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:415.24:042.810:040.78:272.07:045:32Third Quarter1Mon
2Tue3:385.46:162.811:280.29:362.57:035:33Third Quarter2Tue
3Wed4:415.57:503.112:38-0.47:025:34Waning Crescent3Wed
4Thu5:445.68:383.41:34-0.87:015:35Waning Crescent4Thu
5Fri6:445.79:143.612:252.82:20-1.17:005:36Waning Crescent5Fri
6Sat7:365.89:453.71:272.63:01-1.26:595:37Waning Crescent6Sat
7Sun8:215.810:143.82:172.33:38-1.16:585:38New Moon7Sun
8Mon9:025.710:413.92:592.14:11-1.06:575:39New Moon8Mon
9Tue9:405.511:084.03:401.94:41-0.76:565:40New Moon9Tue
10Wed10:175.111:344.14:201.75:09-0.36:555:41New Moon10Wed
11Thu10:544.711:594.25:011.65:330.16:545:42Waxing Crescent11Thu
12Fri11:324.25:441.65:560.66:535:43Waxing Crescent12Fri
13Sat12:254.312:143.66:301.56:161.16:525:44Waxing Crescent13Sat
14Sun12:524.41:053.17:251.56:341.66:515:45Waxing Crescent14Sun
15Mon1:234.42:282.68:391.46:462.16:505:46First Quarter15Mon
16Tue2:024.410:121.26:495:47First Quarter16Tue
17Wed2:574.411:340.86:485:48First Quarter17Wed
18Thu4:054.612:350.36:475:49First Quarter18Thu
19Fri5:124.88:403.21:20-0.26:465:50Waxing Gibbous19Fri
20Sat6:115.18:553.41:58-0.66:455:51Waxing Gibbous20Sat
21Sun7:035.59:153.612:532.62:32-1.06:435:52Waxing Gibbous21Sun
22Mon7:505.89:383.91:432.23:05-1.26:425:53Waxing Gibbous22Mon
23Tue8:355.910:044.22:301.83:38-1.26:415:54Full Moon23Tue
24Wed9:205.810:334.53:171.34:11-1.06:405:55Full Moon24Wed
25Thu10:085.511:044.94:070.94:44-0.66:385:56Full Moon25Thu
26Fri10:595.011:395.15:010.65:170.06:375:57Waning Gibbous26Fri
27Sat11:564.35:580.35:500.66:365:58Waning Gibbous27Sat
28Sun12:165.31:023.67:010.26:231.36:355:59Waning Gibbous28Sun
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 4:42 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 spring phase. Tonight's moon is 19% 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 maximum.

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 Waxing Crescent (19% illuminated). This places San Simeon, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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