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 : 9:02 pm (1.3 ft)
Next high tide : in 5h 00m at 2:13 pm (5.0 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9412553
Common Questions About Tides

San Simeon, CA Tides - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:533.87:554.112:432.512:560.46:127:51First Quarter1Mon
2Tue6:593.88:224.21:372.11:370.56:117:52Waxing Gibbous2Tue
3Wed7:543.88:454.52:181.62:120.66:107:52Waxing Gibbous3Wed
4Thu8:403.99:074.72:541.22:420.86:097:53Waxing Gibbous4Thu
5Fri9:233.99:304.93:280.83:091.06:087:54Waxing Gibbous5Fri
6Sat10:043.99:535.14:020.43:361.26:077:55Full Moon6Sat
7Sun10:473.810:195.34:370.04:041.56:067:56Full Moon7Sun
8Mon11:323.710:475.45:15-0.24:341.86:057:57Full Moon8Mon
9Tue12:223.65:56-0.55:062.16:047:57Full Moon9Tue
10Wed1:163.56:39-0.65:422.36:037:58Waning Gibbous10Wed
11Thu2:183.47:27-0.66:252.66:027:59Waning Gibbous11Thu
12Fri12:375.33:303.48:20-0.67:202.86:018:00Waning Gibbous12Fri
13Sat1:295.04:443.69:19-0.58:413.06:008:01Third Quarter13Sat
14Sun2:344.75:433.810:23-0.410:282.86:008:01Third Quarter14Sun
15Mon3:574.46:304.211:24-0.311:572.35:598:02Third Quarter15Mon
16Tue5:234.27:114.612:19-0.25:588:03Third Quarter16Tue
17Wed6:414.17:485.01:071.71:080.05:578:04Waning Crescent17Wed
18Thu7:524.18:245.42:060.91:540.35:578:05Waning Crescent18Thu
19Fri8:554.18:595.82:570.22:360.75:568:05Waning Crescent19Fri
20Sat9:524.19:346.03:45-0.33:171.05:558:06New Moon20Sat
21Sun10:474.010:106.14:31-0.83:561.45:558:07New Moon21Sun
22Mon11:423.910:466.05:17-1.04:361.85:548:08New Moon22Mon
23Tue12:393.86:02-1.05:172.25:538:08New Moon23Tue
24Wed1:363.76:48-0.96:022.55:538:09Waxing Crescent24Wed
25Thu12:035.52:363.67:34-0.76:512.85:528:10Waxing Crescent25Thu
26Fri12:445.13:413.68:21-0.47:482.95:528:11Waxing Crescent26Fri
27Sat1:304.64:463.79:13-0.19:053.05:518:11Waxing Crescent27Sat
28Sun2:244.25:393.810:080.210:422.95:518:12First Quarter28Sun
29Mon3:353.86:224.011:010.55:518:13First Quarter29Mon
30Tue4:553.56:574.212:032.611:48 AM0.75:508:13First Quarter30Tue
31Wed6:103.47:264.51:042.112:300.95:508:14First Quarter31Wed
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 5:37 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 transitional phase. Tonight's moon is 28% 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 shifting between spring and neap.

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 (28% illuminated). This places San Simeon, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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