Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 03m at 2:38 am (0.2 ft)
Next high tide : 9:12 am (3.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:344.86:074.612:292.17:246:08First Quarter1Sat
2Sun6:155.36:184.612:380.512:301.46:255:07Waxing Gibbous2Sun
3Mon6:535.77:214.612:260.71:230.76:265:06Waxing Gibbous3Mon
4Tue7:306.18:174.71:100.92:110.16:275:05Waxing Gibbous4Tue
5Wed8:066.39:094.61:511.22:56-0.36:285:04Full Moon5Wed
6Thu8:426.410:014.52:311.53:41-0.66:295:04Full Moon6Thu
7Fri9:196.410:544.43:111.94:26-0.66:305:03Full Moon7Fri
8Sat9:566.211:484.23:522.25:11-0.66:315:02Waning Gibbous8Sat
9Sun10:365.94:352.55:57-0.36:325:01Waning Gibbous9Sun
10Mon12:444.111:17 AM5.55:222.86:44-0.16:335:00Waning Gibbous10Mon
11Tue1:454.012:015.06:153.07:340.36:345:00Waning Gibbous11Tue
12Wed2:524.012:534.67:233.28:290.66:354:59Third Quarter12Wed
13Thu3:554.12:004.18:573.19:270.96:364:58Third Quarter13Thu
14Fri4:454.33:233.810:272.810:201.16:374:57Third Quarter14Fri
15Sat5:254.54:423.711:332.411:061.36:384:57Third Quarter15Sat
16Sun5:594.75:503.712:241.96:394:56Waning Crescent16Sun
17Mon6:285.06:493.71:051.46:404:56Waning Crescent17Mon
18Tue6:555.37:393.812:231.61:410.96:414:55Waning Crescent18Tue
19Wed7:225.58:233.912:571.82:160.46:424:54Waning Crescent19Wed
20Thu7:505.89:064.01:301.92:510.06:424:54New Moon20Thu
21Fri8:206.09:504.02:032.13:28-0.36:434:54New Moon21Fri
22Sat8:536.110:374.02:382.24:08-0.66:444:53New Moon22Sat
23Sun9:286.211:274.03:162.44:51-0.76:454:53New Moon23Sun
24Mon10:096.13:592.55:35-0.76:464:52Waxing Crescent24Mon
25Tue12:194.010:54 AM5.94:502.76:23-0.66:474:52Waxing Crescent25Tue
26Wed1:144.111:45 AM5.55:492.87:13-0.46:484:52Waxing Crescent26Wed
27Thu2:144.212:465.07:032.88:08-0.16:494:51First Quarter27Thu
28Fri3:134.52:014.58:352.79:070.26:504:51First Quarter28Fri
29Sat4:074.83:314.110:092.210:040.66:514:51First Quarter29Sat
30Sun4:555.24:583.911:251.610:590.96:524:51First Quarter30Sun
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 5:55 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 85% 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 (85% 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