Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 35m at 3:40 pm (2.9 ft)
Next high tide : 9:58 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:473.47:216.01:460.512:451.78:5911:28Waning Crescent1Sun
2Mon8:513.68:076.42:36-0.21:381.88:5911:28Waning Crescent2Mon
3Tue9:473.88:536.73:24-0.82:321.99:0011:28Waning Crescent3Tue
4Wed10:394.09:406.84:11-1.33:241.99:0011:27New Moon4Wed
5Thu11:294.210:286.74:58-1.54:182.09:0111:27New Moon5Thu
6Fri12:204.35:45-1.55:142.09:0111:27New Moon6Fri
7Sat1:094.56:32-1.36:132.09:0211:27Waxing Crescent7Sat
8Sun12:096.01:594.67:18-1.07:162.19:0211:27Waxing Crescent8Sun
9Mon1:035.42:514.78:04-0.58:242.19:0311:26Waxing Crescent9Mon
10Tue2:024.73:454.88:520.19:442.09:0411:26First Quarter10Tue
11Wed3:104.14:394.99:420.711:091.79:0411:26First Quarter11Wed
12Thu4:333.65:305.010:361.29:0511:25First Quarter12Thu
13Fri6:023.36:175.212:241.311:29 AM1.79:0511:25First Quarter13Fri
14Sat7:273.27:015.31:280.912:212.09:0611:25Waxing Gibbous14Sat
15Sun8:363.47:415.42:190.51:102.39:0711:24Waxing Gibbous15Sun
16Mon9:263.58:185.53:000.21:552.49:0711:24Waxing Gibbous16Mon
17Tue10:063.68:525.63:370.02:342.59:0811:23Waxing Gibbous17Tue
18Wed10:413.79:245.74:10-0.23:112.59:0911:23Full Moon18Wed
19Thu11:143.89:575.74:42-0.33:472.59:0911:22Full Moon19Thu
20Fri11:473.910:305.65:14-0.34:242.49:1011:22Full Moon20Fri
21Sat12:203.95:46-0.35:032.49:1111:21Full Moon21Sat
22Sun12:544.06:18-0.25:462.49:1111:20Waning Gibbous22Sun
23Mon1:284.16:50-0.16:332.49:1211:20Waning Gibbous23Mon
24Tue12:214.92:054.37:230.27:262.49:1311:19Waning Gibbous24Tue
25Wed1:064.52:444.47:580.58:312.39:1411:18Waning Gibbous25Wed
26Thu2:014.03:294.78:360.99:522.09:1411:18Third Quarter26Thu
27Fri3:163.64:184.99:221.411:151.69:1511:17Third Quarter27Fri
28Sat4:523.35:105.310:181.79:1611:16Third Quarter28Sat
29Sun6:263.36:035.712:271.011:20 AM2.09:1711:15Third Quarter29Sun
30Mon7:473.56:566.01:280.312:232.19:1711:14Waning Crescent30Mon
31Tue8:473.77:496.42:22-0.31:262.19:1811:14Waning Crescent31Tue
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 6:49 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 spring phase. Tonight's moon is 100% 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 near their weekly maximum.

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 Full Moon (100% illuminated). This places Port San Luis, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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