Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 5h 23m at 3:00 am (0.0 ft)
Next high tide (tomorrow) : 10:04 am (3.5 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 9:13 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:024.36:273.010:230.68:303.09:5510:31First Quarter1Thu
2Fri3:124.17:203.211:340.510:562.99:5410:32First Quarter2Fri
3Sat4:394.07:463.412:300.49:5210:33First Quarter3Sat
4Sun5:534.18:073.712:192.61:140.39:5110:33First Quarter4Sun
5Mon6:544.28:274.01:152.21:500.29:4910:34Waxing Gibbous5Mon
6Tue7:464.38:484.32:001.72:210.39:4810:35Waxing Gibbous6Tue
7Wed8:344.49:104.72:411.12:510.49:4710:36Waxing Gibbous7Wed
8Thu9:204.49:355.13:210.63:200.69:4510:37Waxing Gibbous8Thu
9Fri10:074.410:035.54:020.03:510.89:4410:37Full Moon9Fri
10Sat10:574.210:355.84:46-0.44:231.29:4310:38Full Moon10Sat
11Sun11:514.011:125.95:34-0.84:581.59:4110:39Full Moon11Sun
12Mon12:503.76:24-0.95:371.99:4010:40Waning Gibbous12Mon
13Tue1:573.57:19-1.06:212.29:3910:41Waning Gibbous13Tue
14Wed12:425.73:163.38:20-0.87:172.59:3710:41Waning Gibbous14Wed
15Thu1:395.44:423.49:29-0.78:382.79:3610:42Third Quarter15Thu
16Fri2:515.05:523.610:41-0.510:302.79:3510:43Third Quarter16Fri
17Sat4:174.66:454.011:45-0.49:3410:44Third Quarter17Sat
18Sun5:404.47:264.312:032.212:41-0.29:3210:45Third Quarter18Sun
19Mon6:544.38:024.71:131.61:280.09:3110:46Waning Crescent19Mon
20Tue7:594.38:335.02:101.02:100.39:3010:46Waning Crescent20Tue
21Wed8:544.29:025.22:580.52:450.79:2910:47Waning Crescent21Wed
22Thu9:444.09:305.43:400.13:181.19:2810:48New Moon22Thu
23Fri10:313.99:575.54:19-0.23:471.49:2610:49New Moon23Fri
24Sat11:173.710:245.54:58-0.44:161.89:2510:50New Moon24Sat
25Sun12:043.65:36-0.54:442.19:2410:50New Moon25Sun
26Mon12:533.46:14-0.45:142.49:2310:51Waxing Crescent26Mon
27Tue1:463.36:55-0.35:462.69:2210:52Waxing Crescent27Tue
28Wed2:483.27:38-0.16:232.89:2110:53Waxing Crescent28Wed
29Thu12:354.74:043.28:270.17:112.99:2010:54Waxing Crescent29Thu
30Fri1:204.45:133.39:230.28:283.09:1910:55First Quarter30Fri
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 6:32 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 79% 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 (79% 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