Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in San Simeon, CA.
Next low tide (tomorrow) : 12:57 am (0.8 ft)
Next high tide : in 30m at 4:48 pm (4.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - Oct 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:386.210:344.83:271.04:19-0.25:595:48Full Moon1Thu
2Fri10:166.311:344.54:051.45:13-0.46:005:47Waning Gibbous2Fri
3Sat10:596.34:451.96:10-0.56:015:46Waning Gibbous3Sat
4Sun12:414.111:46 AM6.25:302.47:12-0.36:025:44Waning Gibbous4Sun
5Mon2:003.812:415.86:232.88:23-0.16:035:43Third Quarter5Mon
6Tue3:323.81:495.47:363.19:390.16:035:41Third Quarter6Tue
7Wed4:534.03:125.19:213.110:490.26:045:40Third Quarter7Wed
8Thu5:544.24:354.910:552.811:480.36:055:39Third Quarter8Thu
9Fri6:394.55:474.812:062.46:065:37Waning Crescent9Fri
10Sat7:144.76:474.812:360.41:001.96:075:36Waning Crescent10Sat
11Sun7:434.97:384.71:160.61:441.56:075:34Waning Crescent11Sun
12Mon8:085.18:224.61:490.92:231.16:085:33Waning Crescent12Mon
13Tue8:315.39:024.52:171.32:580.86:095:32New Moon13Tue
14Wed8:535.49:414.32:421.63:310.56:105:30New Moon14Wed
15Thu9:155.510:224.13:051.94:060.46:115:29New Moon15Thu
16Fri9:395.511:063.93:282.24:420.36:125:28New Moon16Fri
17Sat10:045.511:533.83:532.55:200.36:135:27Waxing Crescent17Sat
18Sun10:325.44:182.76:020.46:145:25Waxing Crescent18Sun
19Mon12:483.611:05 AM5.24:463.06:490.56:145:24Waxing Crescent19Mon
20Tue1:583.511:43 AM5.05:183.27:440.66:155:23Waxing Crescent20Tue
21Wed3:303.512:334.86:063.48:480.66:165:22First Quarter21Wed
22Thu4:413.61:424.57:403.59:510.66:175:20First Quarter22Thu
23Fri5:223.93:124.49:473.310:450.66:185:19First Quarter23Fri
24Sat5:514.24:354.411:082.811:310.66:195:18First Quarter24Sat
25Sun6:184.65:474.512:072.16:205:17Waxing Gibbous25Sun
26Mon6:475.16:514.612:130.712:591.36:215:16Waxing Gibbous26Mon
27Tue7:175.67:504.612:530.91:470.66:225:15Waxing Gibbous27Tue
28Wed7:506.18:464.61:311.12:34-0.26:235:14Full Moon28Wed
29Thu8:256.59:424.52:101.43:22-0.76:245:12Full Moon29Thu
30Fri9:036.810:404.42:501.84:12-1.06:255:11Full Moon30Fri
31Sat9:456.811:414.23:322.15:04-1.26:265:10Full Moon31Sat
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 8:52 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 56% 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 (56% 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