Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 5h 04m at 6:31 am (-1.3 ft)
Next high tide : 1:09 pm (4.4 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:07 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:376.310:393.82:232.44:03-1.510:088:38New Moon1Sun
2Mon9:216.311:134.03:112.14:40-1.510:078:39New Moon2Mon
3Tue10:076.111:474.34:031.95:17-1.310:068:40New Moon3Tue
4Wed10:565.64:581.75:54-0.810:068:41Waxing Crescent4Wed
5Thu12:244.511:50 AM5.05:591.56:30-0.210:058:42Waxing Crescent5Thu
6Fri1:044.812:514.27:071.37:070.510:048:43Waxing Crescent6Fri
7Sat1:485.02:123.48:281.17:481.310:038:44First Quarter7Sat
8Sun2:385.24:032.910:000.78:391.910:028:45First Quarter8Sun
9Mon3:365.36:082.911:240.29:502.510:018:46First Quarter9Mon
10Tue4:385.47:393.212:34-0.310:008:47Waxing Gibbous10Tue
11Wed5:405.58:293.51:29-0.79:598:48Waxing Gibbous11Wed
12Thu6:385.69:063.712:282.72:15-1.09:588:49Waxing Gibbous12Thu
13Fri7:295.79:383.81:262.52:55-1.09:578:50Waxing Gibbous13Fri
14Sat8:135.710:063.92:132.33:31-1.09:568:51Full Moon14Sat
15Sun8:525.610:333.92:532.14:03-0.99:558:52Full Moon15Sun
16Mon9:285.410:594.03:311.94:32-0.69:548:53Full Moon16Mon
17Tue10:045.211:244.14:091.74:59-0.39:538:54Full Moon17Tue
18Wed10:394.811:494.24:481.65:230.19:528:55Waning Gibbous18Wed
19Thu11:174.35:291.65:450.59:518:56Waning Gibbous19Thu
20Fri12:144.211:57 AM3.86:141.56:061.09:498:56Waning Gibbous20Fri
21Sat12:404.312:463.37:061.56:241.59:488:57Waning Gibbous21Sat
22Sun1:094.31:582.88:151.46:402.09:478:58Third Quarter22Sun
23Mon1:464.44:162.59:431.26:442.49:468:59Third Quarter23Mon
24Tue2:394.411:060.89:459:00Third Quarter24Tue
25Wed3:464.512:110.39:439:01Third Quarter25Wed
26Thu4:554.88:203.31:00-0.29:429:02Waning Crescent26Thu
27Fri5:565.18:373.51:41-0.79:419:03Waning Crescent27Fri
28Sat6:515.58:593.712:412.62:19-1.09:409:04Waning Crescent28Sat
29Sun7:405.89:243.91:332.22:55-1.39:389:05Waning Crescent29Sun
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 9:50 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 7% 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 Crescent (7% 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