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 2h 22m at 7:41 pm (5.5 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 - Feb 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:515.89:233.612:362.72:30-1.07:015:31Waxing Gibbous1Sat
2Sun7:385.89:553.71:332.63:09-1.17:005:32Waxing Gibbous2Sun
3Mon8:205.810:253.82:182.53:45-1.06:595:33Full Moon3Mon
4Tue8:585.710:523.82:582.34:17-0.96:595:34Full Moon4Tue
5Wed9:345.511:193.93:362.14:47-0.76:585:35Full Moon5Wed
6Thu10:095.311:453.94:142.05:14-0.46:575:36Full Moon6Thu
7Fri10:444.94:541.95:380.06:565:37Waning Gibbous7Fri
8Sat12:114.011:21 AM4.45:371.96:010.46:555:38Waning Gibbous8Sat
9Sun12:374.112:013.96:241.86:230.96:545:39Waning Gibbous9Sun
10Mon1:054.212:503.37:211.76:421.46:535:40Waning Gibbous10Mon
11Tue1:364.32:032.88:371.66:591.96:525:41Third Quarter11Tue
12Wed2:154.44:182.510:071.37:112.36:515:42Third Quarter12Wed
13Thu3:064.511:260.86:505:43Third Quarter13Thu
14Fri4:074.712:270.36:495:44Third Quarter14Fri
15Sat5:105.08:303.21:14-0.36:485:45Waning Crescent15Sat
16Sun6:085.48:513.41:55-0.86:475:46Waning Crescent16Sun
17Mon7:025.89:163.612:452.62:34-1.26:465:47Waning Crescent17Mon
18Tue7:516.19:433.91:392.33:11-1.56:455:48New Moon18Tue
19Wed8:386.210:134.22:291.93:48-1.56:435:49New Moon19Wed
20Thu9:256.110:464.53:191.54:24-1.36:425:50New Moon20Thu
21Fri10:155.811:204.84:121.15:00-0.96:415:51New Moon21Fri
22Sat11:075.211:575.15:090.85:35-0.36:405:52Waxing Crescent22Sat
23Sun12:054.46:080.66:100.46:395:53Waxing Crescent23Sun
24Mon12:365.21:133.77:150.56:461.26:385:54Waxing Crescent24Mon
25Tue1:215.32:473.08:340.47:271.96:365:55First Quarter25Tue
26Wed2:155.24:552.910:040.28:272.56:355:56First Quarter26Wed
27Thu3:215.16:543.111:26-0.110:092.96:345:56First Quarter27Thu
28Fri4:345.17:513.512:34-0.46:335:57First Quarter28Fri
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 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