Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 12:20 pm (2.2 ft)
Next high tide : in 3h 44m at 7:58 am (3.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:444.25:092.810:311.18:532.56:315:59Third Quarter1Tue
2Wed3:504.36:313.011:370.710:262.56:305:59Third Quarter2Wed
3Thu4:544.57:163.312:290.36:286:00Third Quarter3Thu
4Fri5:514.87:493.61:12-0.16:276:01Waning Crescent4Fri
5Sat6:425.18:183.912:352.11:50-0.56:266:02Waning Crescent5Sat
6Sun7:305.48:484.21:251.72:27-0.76:246:03Waning Crescent6Sun
7Mon8:165.69:204.52:111.33:03-0.86:236:04New Moon7Mon
8Tue9:025.69:554.82:570.93:40-0.76:226:05New Moon8Tue
9Wed9:505.510:325.13:460.54:18-0.56:206:06New Moon9Wed
10Thu10:415.111:125.34:370.34:57-0.16:196:06Waxing Crescent10Thu
11Fri11:364.611:545.35:320.15:380.46:176:07Waxing Crescent11Fri
12Sat12:384.16:300.16:221.06:166:08Waxing Crescent12Sat
13Sun12:425.32:533.68:370.18:121.67:157:09Waxing Crescent13Sun
14Mon2:375.14:273.39:550.19:192.07:137:10First Quarter14Mon
15Tue3:444.96:023.411:170.110:482.37:127:11First Quarter15Tue
16Wed4:594.87:203.612:30-0.17:117:11First Quarter16Wed
17Thu6:124.88:143.912:142.21:30-0.27:097:12Waxing Gibbous17Thu
18Fri7:164.88:544.11:232.02:20-0.37:087:13Waxing Gibbous18Fri
19Sat8:104.99:264.32:171.73:00-0.37:067:14Waxing Gibbous19Sat
20Sun8:554.99:544.43:011.43:35-0.27:057:15Waxing Gibbous20Sun
21Mon9:344.810:204.53:391.14:050.07:037:15Full Moon21Mon
22Tue10:114.710:454.54:140.94:330.37:027:16Full Moon22Tue
23Wed10:474.511:104.64:490.84:590.67:017:17Full Moon23Wed
24Thu11:244.311:364.65:240.65:240.96:597:18Full Moon24Thu
25Fri12:034.06:010.65:501.26:587:19Waning Gibbous25Fri
26Sat12:024.612:463.76:400.66:161.56:567:20Waning Gibbous26Sat
27Sun12:314.61:353.47:230.66:441.96:557:20Waning Gibbous27Sun
28Mon1:034.52:373.18:130.77:152.26:547:21Waning Gibbous28Mon
29Tue1:414.34:062.99:160.77:572.56:527:22Third Quarter29Tue
30Wed2:324.25:433.010:310.79:192.76:517:23Third Quarter30Wed
31Thu3:454.16:503.211:390.511:082.76:497:24Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

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What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 10:09 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 Port San Luis, CA?

Port San Luis, CA is currently in a transitional phase. Tonight's moon is 77% 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 Port San Luis, 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 Port San Luis, CA?

Tide predictions for Port San Luis, 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 Port San Luis, CA?

Tide data for Port San Luis, CA is sourced from NOAA Station #9412110. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9412110.

What is the moon phase in Port San Luis, CA tonight?

Tonight the moon over Port San Luis, CA is Waxing Gibbous (77% illuminated). This places Port San Luis, 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