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 5h 52m 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 - Jul 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:523.36:525.81:100.912:051.55:528:21Waxing Gibbous1Fri
2Sat8:133.47:346.22:060.112:551.95:528:21Waxing Gibbous2Sat
3Sun9:193.68:196.62:57-0.61:472.15:538:21Waxing Gibbous3Sun
4Mon10:173.79:056.83:46-1.22:402.35:538:21Full Moon4Mon
5Tue11:113.99:526.94:34-1.63:332.45:548:21Full Moon5Tue
6Wed12:034.05:22-1.74:272.45:548:20Full Moon6Wed
7Thu12:534.16:10-1.65:252.45:558:20Waning Gibbous7Thu
8Fri1:414.26:56-1.46:252.55:558:20Waning Gibbous8Fri
9Sat12:235.92:304.37:42-0.97:292.55:568:20Waning Gibbous9Sat
10Sun1:165.33:204.48:27-0.48:412.45:578:19Waning Gibbous10Sun
11Mon2:144.64:104.69:120.210:072.35:578:19Third Quarter11Mon
12Tue3:243.94:574.79:590.811:321.95:588:19Third Quarter12Tue
13Wed4:503.45:404.910:461.45:588:18Third Quarter13Wed
14Thu6:223.16:205.112:451.411:32 AM1.95:598:18Third Quarter14Thu
15Fri7:513.16:595.21:441.012:182.36:008:18Waning Crescent15Fri
16Sat9:003.37:355.42:310.51:032.56:008:17Waning Crescent16Sat
17Sun9:493.48:115.63:100.21:472.76:018:17Waning Crescent17Sun
18Mon10:293.58:465.73:45-0.12:282.86:028:16Waning Crescent18Mon
19Tue11:053.69:205.84:19-0.33:072.86:028:15New Moon19Tue
20Wed11:393.79:555.84:53-0.53:442.76:038:15New Moon20Wed
21Thu12:133.75:26-0.64:232.76:048:14New Moon21Thu
22Fri12:463.86:00-0.65:052.76:048:14New Moon22Fri
23Sat1:203.96:33-0.55:512.66:058:13Waxing Crescent23Sat
24Sun1:544.07:06-0.36:432.66:068:12Waxing Crescent24Sun
25Mon12:295.12:304.27:390.07:432.56:078:12Waxing Crescent25Mon
26Tue1:194.63:094.58:140.48:562.36:078:11Waxing Crescent26Tue
27Wed2:214.13:514.88:530.910:221.96:088:10First Quarter27Wed
28Thu3:453.54:385.19:371.411:441.36:098:09First Quarter28Thu
29Fri5:263.25:275.510:301.96:108:09First Quarter29Fri
30Sat7:073.26:195.912:540.611:31 AM2.36:108:08Waxing Gibbous30Sat
31Sun8:273.47:126.31:54-0.112:352.56:118:07Waxing Gibbous31Sun
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