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 40m 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 - Jun 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:035.54:043.88:46-1.08:212.85:508:15Waxing Crescent1Fri
2Sat2:055.04:534.19:39-0.69:582.65:498:15First Quarter2Sat
3Sun3:204.45:364.510:31-0.211:302.05:498:16First Quarter3Sun
4Mon4:473.96:165.011:200.35:498:17First Quarter4Mon
5Tue6:153.56:545.412:461.312:070.95:498:17Waxing Gibbous5Tue
6Wed7:403.37:325.71:490.512:511.45:488:18Waxing Gibbous6Wed
7Thu8:553.38:106.02:43-0.11:351.95:488:18Waxing Gibbous7Thu
8Fri9:593.48:476.13:31-0.72:182.25:488:19Waxing Gibbous8Fri
9Sat10:563.59:236.14:15-1.03:002.55:488:19Full Moon9Sat
10Sun11:483.510:006.04:57-1.13:412.75:488:20Full Moon10Sun
11Mon12:363.55:39-1.14:222.85:488:20Full Moon11Mon
12Tue1:213.56:19-1.05:052.95:488:21Full Moon12Tue
13Wed2:043.56:59-0.85:512.95:488:21Waning Gibbous13Wed
14Thu2:473.67:37-0.56:423.05:488:21Waning Gibbous14Thu
15Fri12:374.93:313.68:15-0.27:403.05:488:22Waning Gibbous15Fri
16Sat1:204.54:133.88:530.18:532.95:488:22Waning Gibbous16Sat
17Sun2:094.04:504.09:310.510:252.75:488:22Third Quarter17Sun
18Mon3:143.55:224.210:090.911:482.35:488:23Third Quarter18Mon
19Tue4:403.15:534.610:461.35:498:23Third Quarter19Tue
20Wed6:132.96:244.912:541.711:24 AM1.75:498:23Third Quarter20Wed
21Thu7:442.96:565.31:461.012:042.15:498:23Waning Crescent21Thu
22Fri8:573.07:325.62:300.412:472.45:498:24Waning Crescent22Fri
23Sat9:533.28:116.03:11-0.21:342.65:508:24Waning Crescent23Sat
24Sun10:423.48:536.33:52-0.82:232.75:508:24New Moon24Sun
25Mon11:283.59:376.54:34-1.23:122.75:508:24New Moon25Mon
26Tue12:133.65:18-1.54:032.75:508:24New Moon26Tue
27Wed12:563.76:03-1.64:592.65:518:24New Moon27Wed
28Thu1:393.96:47-1.56:012.55:518:24Waxing Crescent28Thu
29Fri12:046.12:234.17:30-1.37:072.45:528:24Waxing Crescent29Fri
30Sat12:595.63:084.48:13-0.88:212.35:528:24Waxing Crescent30Sat
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