Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:19 am (-0.2 ft)
Next high tide : in 6h 11m at 7:41 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:415.39:213.512:272.82:23-0.510:088:38Waxing Gibbous1Wed
2Thu7:245.49:493.61:192.82:59-0.710:078:39Waxing Gibbous2Thu
3Fri8:025.510:143.61:592.63:31-0.710:068:40Full Moon3Fri
4Sat8:375.510:393.62:342.54:00-0.710:068:41Full Moon4Sat
5Sun9:105.511:043.73:082.34:28-0.610:058:42Full Moon5Sun
6Mon9:435.411:283.83:442.24:55-0.510:048:43Full Moon6Mon
7Tue10:175.111:543.94:222.15:20-0.310:038:44Full Moon7Tue
8Wed10:524.85:042.05:450.110:028:45Waning Gibbous8Wed
9Thu12:194.111:31 AM4.35:501.96:080.510:018:46Waning Gibbous9Thu
10Fri12:464.212:163.76:431.86:311.010:008:47Waning Gibbous10Fri
11Sat1:164.41:173.27:491.66:551.59:598:48Waning Gibbous11Sat
12Sun1:534.62:572.79:151.37:212.09:588:49Third Quarter12Sun
13Mon2:424.85:222.610:420.88:022.59:578:50Third Quarter13Mon
14Tue3:435.07:212.911:540.19:412.89:568:51Third Quarter14Tue
15Wed4:485.48:043.212:52-0.59:558:52Waning Crescent15Wed
16Thu5:535.78:353.51:41-1.19:548:53Waning Crescent16Thu
17Fri6:536.19:073.712:342.62:25-1.59:538:54Waning Crescent17Fri
18Sat7:476.49:394.01:352.23:07-1.79:528:55Waning Crescent18Sat
19Sun8:386.410:134.32:291.83:47-1.79:518:56New Moon19Sun
20Mon9:276.210:484.63:221.44:26-1.49:508:57New Moon20Mon
21Tue10:175.811:234.84:161.15:03-0.99:488:57New Moon21Tue
22Wed11:095.25:110.95:38-0.39:478:58Waxing Crescent22Wed
23Thu12:005.012:044.46:090.86:130.49:468:59Waxing Crescent23Thu
24Fri12:385.01:063.77:110.76:461.29:459:00Waxing Crescent24Fri
25Sat1:195.02:323.08:260.77:211.99:449:01First Quarter25Sat
26Sun2:074.94:392.89:530.68:062.59:429:02First Quarter26Sun
27Mon3:074.76:583.011:160.49:412.99:419:03First Quarter27Mon
28Tue4:164.67:563.312:240.19:409:04First Quarter28Tue
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 11:30 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 84% 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 (84% 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