Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 45m at 3:56 am (-0.4 ft)
Next high tide : 10:51 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:494.312:233.76:521.86:371.010:088:38Waning Gibbous1Sun
2Mon1:264.41:233.27:591.77:081.410:078:39Third Quarter2Mon
3Tue2:104.52:542.89:231.57:491.810:078:40Third Quarter3Tue
4Wed3:054.74:482.710:441.08:532.210:068:41Third Quarter4Wed
5Thu4:045.06:222.911:500.410:162.310:058:42Third Quarter5Thu
6Fri5:045.37:213.212:44-0.210:048:43Waning Crescent6Fri
7Sat6:025.78:033.61:31-0.710:038:44Waning Crescent7Sat
8Sun6:576.08:413.912:382.12:14-1.110:028:45Waning Crescent8Sun
9Mon7:486.29:184.31:351.72:55-1.310:018:46New Moon9Mon
10Tue8:386.39:564.62:291.43:36-1.410:008:47New Moon10Tue
11Wed9:276.110:354.93:221.14:16-1.29:598:48New Moon11Wed
12Thu10:175.811:165.14:160.84:56-0.89:588:49New Moon12Thu
13Fri11:105.211:585.25:120.75:36-0.39:578:50Waxing Crescent13Fri
14Sat12:054.56:100.76:160.39:568:51Waxing Crescent14Sat
15Sun12:435.21:083.97:130.76:581.09:558:52Waxing Crescent15Sun
16Mon1:325.12:283.38:290.77:471.69:548:52First Quarter16Mon
17Tue2:295.04:103.09:540.78:512.19:538:53First Quarter17Tue
18Wed3:344.85:533.111:140.510:132.49:528:54First Quarter18Wed
19Thu4:414.87:073.312:200.29:518:55First Quarter19Thu
20Fri5:424.87:533.51:120.09:508:56Waxing Gibbous20Fri
21Sat6:354.98:263.712:322.31:52-0.29:498:57Waxing Gibbous21Sat
22Sun7:195.08:523.81:192.12:25-0.29:478:58Waxing Gibbous22Sun
23Mon7:575.19:173.91:581.92:55-0.29:468:59Waxing Gibbous23Mon
24Tue8:315.19:404.12:321.73:21-0.29:459:00Full Moon24Tue
25Wed9:045.010:044.23:061.53:470.09:449:01Full Moon25Wed
26Thu9:384.810:294.33:411.34:120.19:429:02Full Moon26Thu
27Fri10:134.610:554.54:181.14:370.49:419:03Full Moon27Fri
28Sat10:514.311:234.54:571.05:030.79:409:04Waning Gibbous28Sat
29Sun11:333.911:534.65:401.05:291.09:399:05Waning Gibbous29Sun
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 7:23 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 spring phase. Tonight's moon is 95% 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 Waxing Gibbous (95% 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