Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 33m at 10:14 am (1.8 ft)
Next high tide : 5:17 pm (5.4 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:075.19:013.31:59-0.110:088:37Waxing Gibbous1Sun
2Mon6:515.39:293.412:362.92:33-0.410:088:38Waxing Gibbous2Mon
3Tue7:315.59:543.51:222.73:06-0.710:078:39Waxing Gibbous3Tue
4Wed8:095.610:203.62:012.63:37-0.810:068:40Full Moon4Wed
5Thu8:445.710:463.72:392.44:07-0.910:058:41Full Moon5Thu
6Fri9:205.711:133.83:172.24:38-0.910:048:42Full Moon6Fri
7Sat9:575.611:414.03:582.15:07-0.710:038:43Full Moon7Sat
8Sun10:375.34:441.95:37-0.410:038:44Waning Gibbous8Sun
9Mon12:104.211:21 AM4.85:341.86:060.010:028:45Waning Gibbous9Mon
10Tue12:414.412:134.26:321.66:350.610:018:46Waning Gibbous10Tue
11Wed1:164.61:183.57:411.47:061.210:008:47Waning Gibbous11Wed
12Thu1:584.92:542.99:081.07:431.89:598:48Third Quarter12Thu
13Fri2:515.15:032.710:360.58:392.39:588:49Third Quarter13Fri
14Sat3:525.36:593.011:52-0.110:082.79:578:50Third Quarter14Sat
15Sun4:585.67:593.312:54-0.79:568:51Waning Crescent15Sun
16Mon6:035.88:383.61:45-1.29:548:52Waning Crescent16Mon
17Tue7:026.09:123.812:492.52:30-1.49:538:53Waning Crescent17Tue
18Wed7:556.29:454.01:472.23:12-1.59:528:54New Moon18Wed
19Thu8:436.110:184.22:381.93:50-1.49:518:55New Moon19Thu
20Fri9:285.910:504.33:261.64:27-1.19:508:56New Moon20Fri
21Sat10:125.511:224.54:131.45:00-0.79:498:57New Moon21Sat
22Sun10:565.011:534.65:011.25:31-0.19:488:58Waxing Crescent22Sun
23Mon11:424.35:501.26:000.59:468:59Waxing Crescent23Mon
24Tue12:254.612:323.76:421.26:261.29:459:00Waxing Crescent24Tue
25Wed12:574.61:363.17:431.26:491.89:449:01Waxing Crescent25Wed
26Thu1:334.53:202.79:011.17:092.39:439:02First Quarter26Thu
27Fri2:184.410:300.99:429:03First Quarter27Fri
28Sat3:194.411:460.69:409:04First Quarter28Sat
29Sun4:284.48:173.312:430.39:399:04First Quarter29Sun
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 1:45 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 neap phase. Tonight's moon is 41% 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 minimum.

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 Third Quarter (41% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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