Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 6m at 12:20 pm (2.2 ft)
Next high tide : 7:06 pm (5.4 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 8:56 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:364.39:425.64:09-0.23:442.19:4310:36New Moon1Sun
2Mon10:584.410:175.54:380.04:191.99:4310:34New Moon2Mon
3Tue11:214.510:525.25:030.34:551.79:4410:33New Moon3Tue
4Wed11:424.611:294.85:270.65:331.69:4510:31New Moon4Wed
5Thu12:044.75:481.06:131.59:4510:30Waxing Crescent5Thu
6Fri12:084.412:274.86:091.56:561.49:4610:29Waxing Crescent6Fri
7Sat12:534.012:514.96:281.97:441.49:4710:27Waxing Crescent7Sat
8Sun1:473.51:194.96:452.48:461.49:4810:26Waxing Crescent8Sun
9Mon3:103.21:554.96:592.810:081.39:4810:24First Quarter9Mon
10Tue2:504.811:321.09:4910:23First Quarter10Tue
11Wed4:114.99:5010:21First Quarter11Wed
12Thu8:363.65:325.112:380.611:10 AM3.59:5110:20First Quarter12Thu
13Fri8:443.86:395.41:300.112:353.29:5110:19Waxing Gibbous13Fri
14Sat9:024.17:375.82:13-0.21:342.79:5210:17Waxing Gibbous14Sat
15Sun9:244.38:296.02:51-0.52:252.29:5310:16Waxing Gibbous15Sun
16Mon9:494.79:196.13:27-0.53:141.69:5410:14Full Moon16Mon
17Tue10:175.110:095.94:02-0.44:041.09:5410:13Full Moon17Tue
18Wed10:485.511:015.54:360.04:550.69:5510:11Full Moon18Wed
19Thu11:225.911:585.05:110.55:490.29:5610:10Full Moon19Thu
20Fri11:596.15:461.16:470.09:5610:08Waning Gibbous20Fri
21Sat1:014.412:396.16:231.87:490.09:5710:07Waning Gibbous21Sat
22Sun2:163.91:255.97:022.49:000.19:5810:06Waning Gibbous22Sun
23Mon3:573.62:205.67:503.010:230.29:5910:04Third Quarter23Mon
24Tue5:533.73:345.39:113.411:420.19:5910:03Third Quarter24Tue
25Wed7:163.95:005.111:123.410:0010:01Third Quarter25Wed
26Thu8:044.26:175.112:490.112:393.110:0110:00Third Quarter26Thu
27Fri8:374.47:205.11:430.01:392.710:029:58Waning Crescent27Fri
28Sat9:044.58:105.22:250.12:232.310:029:57Waning Crescent28Sat
29Sun9:264.68:525.13:000.23:011.910:039:56Waning Crescent29Sun
30Mon9:474.89:305.03:280.53:351.610:049:54Waning Crescent30Mon
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 3:43 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 Port San Luis, CA?

Port San Luis, CA is currently in a transitional phase. Tonight's moon is 76% 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 (76% 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