Tides Today & Tomorrow in San Simeon, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in San Simeon, CA.
Next low tide (tomorrow) : in 5h 44m at 12:26 am (1.1 ft)
Next high tide (tomorrow) : 6:37 am (2.9 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 - Apr 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:295.25:583.210:32-0.59:322.96:507:26First Quarter1Sun
2Mon3:494.97:073.511:47-0.411:282.76:497:27First Quarter2Mon
3Tue5:164.77:533.812:51-0.46:487:27First Quarter3Tue
4Wed6:334.68:284.112:512.31:43-0.46:467:28Waxing Gibbous4Wed
5Thu7:384.68:574.41:531.82:25-0.26:457:29Waxing Gibbous5Thu
6Fri8:334.59:234.62:421.33:000.06:437:30Waxing Gibbous6Fri
7Sat9:194.49:474.83:240.83:290.46:427:31Waxing Gibbous7Sat
8Sun10:014.210:094.94:020.53:550.86:417:32Full Moon8Sun
9Mon10:434.010:315.04:380.24:191.26:397:32Full Moon9Mon
10Tue11:243.810:535.15:140.04:411.56:387:33Full Moon10Tue
11Wed12:083.55:51-0.15:031.96:377:34Full Moon11Wed
12Thu12:563.36:29-0.15:262.26:357:35Waning Gibbous12Thu
13Fri1:513.17:100.05:482.56:347:36Waning Gibbous13Fri
14Sat12:134.83:032.97:580.16:112.76:337:36Waning Gibbous14Sat
15Sun12:494.78:550.26:317:37Waning Gibbous15Sun
16Mon1:344.410:030.36:307:38Third Quarter16Mon
17Tue2:394.27:063.311:090.210:243.16:297:39Third Quarter17Tue
18Wed4:084.17:253.512:040.26:277:40Third Quarter18Wed
19Thu5:314.17:453.812:022.712:490.16:267:41Third Quarter19Thu
20Fri6:414.18:064.21:052.21:280.16:257:41Waning Crescent20Fri
21Sat7:444.28:314.71:561.52:040.36:247:42Waning Crescent21Sat
22Sun8:424.38:595.32:430.72:390.56:227:43Waning Crescent22Sun
23Mon9:374.39:305.73:30-0.13:140.86:217:44New Moon23Mon
24Tue10:324.110:046.14:17-0.73:501.26:207:45New Moon24Tue
25Wed11:304.010:436.35:06-1.24:291.66:197:46New Moon25Wed
26Thu12:323.85:58-1.45:102.06:187:46Waxing Crescent26Thu
27Fri1:383.66:53-1.45:582.36:167:47Waxing Crescent27Fri
28Sat12:136.12:513.57:50-1.36:542.66:157:48Waxing Crescent28Sat
29Sun1:085.74:113.58:53-1.08:072.86:147:49Waxing Crescent29Sun
30Mon2:115.15:223.710:00-0.79:472.86:137:50First Quarter30Mon
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 3:31 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 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