Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:00 am (0.0 ft)
Next high tide : in 6h 07m at 7:11 pm (5.4 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:573.93:384.210:483.711:410.67:246:08First Quarter1Wed
2Thu7:154.15:074.212:103.37:256:07First Quarter2Thu
3Fri7:324.46:164.212:250.61:012.77:266:06First Quarter3Fri
4Sat7:504.77:164.31:030.71:442.17:276:05Waxing Gibbous4Sat
5Sun7:105.17:114.41:360.81:241.46:285:04Waxing Gibbous5Sun
6Mon7:325.58:034.41:081.02:030.76:295:03Waxing Gibbous6Mon
7Tue7:575.98:544.31:391.32:440.16:305:02Full Moon7Tue
8Wed8:266.39:494.22:111.73:28-0.56:315:02Full Moon8Wed
9Thu8:596.610:484.12:442.14:16-0.96:325:01Full Moon9Thu
10Fri9:376.711:533.93:212.45:07-1.16:335:00Waning Gibbous10Fri
11Sat10:206.64:022.86:02-1.16:344:59Waning Gibbous11Sat
12Sun1:043.811:09 AM6.44:523.17:01-0.96:354:59Waning Gibbous12Sun
13Mon2:243.912:075.95:573.38:06-0.76:364:58Waning Gibbous13Mon
14Tue3:404.01:175.47:273.49:13-0.46:374:57Third Quarter14Tue
15Wed4:394.32:434.99:213.210:15-0.16:384:57Third Quarter15Wed
16Thu5:244.64:114.510:532.611:080.26:394:56Third Quarter16Thu
17Fri6:035.05:304.312:032.06:404:55Waning Crescent17Fri
18Sat6:365.36:404.112:591.36:414:55Waning Crescent18Sat
19Sun7:065.67:414.012:351.01:460.76:424:54Waning Crescent19Sun
20Mon7:345.88:354.01:091.52:270.26:434:54Waning Crescent20Mon
21Tue7:596.09:253.91:401.93:05-0.16:444:53New Moon21Tue
22Wed8:246.010:143.82:082.33:42-0.36:454:53New Moon22Wed
23Thu8:506.011:033.72:342.74:18-0.46:454:53New Moon23Thu
24Fri9:165.911:543.73:002.94:56-0.46:464:52New Moon24Fri
25Sat9:455.73:283.15:35-0.36:474:52Waxing Crescent25Sat
26Sun12:473.610:18 AM5.53:593.36:16-0.26:484:52Waxing Crescent26Sun
27Mon1:483.610:54 AM5.24:363.47:010.06:494:51Waxing Crescent27Mon
28Tue2:583.611:35 AM4.95:283.57:490.26:504:51Waxing Crescent28Tue
29Wed3:563.712:264.56:463.68:400.46:514:51First Quarter29Wed
30Thu4:333.91:334.18:453.59:290.56:524:51First Quarter30Thu
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 11:05 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 80% 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 (80% 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