Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in San Simeon, CA.
Next low tide : 8:35 am (2.6 ft)
Next high tide : in 11m at 4:41 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 - Sep 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:284.99:116.03:10-0.43:051.25:366:32New Moon1Sun
2Mon10:045.210:005.83:48-0.23:550.95:376:30New Moon2Mon
3Tue10:435.410:535.44:270.04:480.75:386:29Waxing Crescent3Tue
4Wed11:245.611:495.05:070.45:450.55:396:28Waxing Crescent4Wed
5Thu12:095.75:490.96:460.55:396:26Waxing Crescent5Thu
6Fri12:534.412:595.66:341.57:540.65:406:25Waxing Crescent6Fri
7Sat2:094.01:575.57:262.09:130.65:416:23First Quarter7Sat
8Sun3:423.73:065.38:362.510:320.55:426:22First Quarter8Sun
9Mon5:143.84:205.210:042.711:420.35:426:20First Quarter9Mon
10Tue6:274.05:295.211:252.65:436:19Waxing Gibbous10Tue
11Wed7:194.26:295.312:400.212:302.45:446:18Waxing Gibbous11Wed
12Thu7:584.47:205.31:270.21:222.15:456:16Waxing Gibbous12Thu
13Fri8:304.58:045.32:070.22:041.85:456:15Waxing Gibbous13Fri
14Sat8:574.78:425.22:400.32:411.65:466:13Full Moon14Sat
15Sun9:234.89:185.13:100.53:151.45:476:12Full Moon15Sun
16Mon9:484.89:534.93:380.83:491.35:486:10Full Moon16Mon
17Tue10:134.910:304.74:041.14:251.25:486:09Full Moon17Tue
18Wed10:394.911:104.44:301.45:021.15:496:07Waning Gibbous18Wed
19Thu11:074.911:534.14:571.75:421.15:506:06Waning Gibbous19Thu
20Fri11:374.95:252.06:261.25:516:04Waning Gibbous20Fri
21Sat12:443.812:114.85:552.37:191.25:526:03Waning Gibbous21Sat
22Sun1:493.512:534.76:292.78:251.35:526:01Third Quarter22Sun
23Mon3:233.41:494.67:182.99:421.25:536:00Third Quarter23Mon
24Tue4:543.53:034.68:483.110:500.95:545:59Third Quarter24Tue
25Wed5:553.74:194.710:243.011:450.65:555:57Third Quarter25Wed
26Thu6:364.05:265.011:332.75:555:56Waning Crescent26Thu
27Fri7:104.46:265.212:320.412:302.25:565:54Waning Crescent27Fri
28Sat7:424.77:215.51:140.21:211.65:575:53Waning Crescent28Sat
29Sun8:145.28:135.61:540.22:091.05:585:51Waning Crescent29Sun
30Mon8:485.69:035.52:320.22:570.55:595:50New Moon30Mon
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 6:38 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