Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:20 am (0.3 ft)
Next high tide : in 3h 10m at 1:10 am (4.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:116.111:004.03:052.14:27-1.27:015:31Full Moon1Tue
2Wed9:536.011:374.23:511.95:04-1.17:015:32Full Moon2Wed
3Thu10:395.74:421.85:42-0.97:005:33Waning Gibbous3Thu
4Fri12:154.311:29 AM5.25:381.76:20-0.46:595:34Waning Gibbous4Fri
5Sat12:564.512:254.66:401.67:000.16:585:35Waning Gibbous5Sat
6Sun1:424.71:333.97:541.47:450.86:575:36Third Quarter6Sun
7Mon2:344.93:043.39:221.18:381.46:565:37Third Quarter7Mon
8Tue3:315.14:513.110:480.69:441.96:555:38Third Quarter8Tue
9Wed4:315.36:313.212:010.16:545:39Third Quarter9Wed
10Thu5:305.57:413.41:01-0.56:535:40Waning Crescent10Thu
11Fri6:265.78:303.712:072.31:51-0.86:535:41Waning Crescent11Fri
12Sat7:175.89:103.91:072.22:35-1.06:515:42Waning Crescent12Sat
13Sun8:035.99:454.01:582.13:14-1.16:505:43New Moon13Sun
14Mon8:455.810:184.12:431.93:51-1.06:495:44New Moon14Mon
15Tue9:245.610:504.13:241.84:25-0.86:485:45New Moon15Tue
16Wed10:025.311:204.24:041.74:57-0.56:475:46New Moon16Wed
17Thu10:405.011:504.24:451.65:27-0.16:465:47Waxing Crescent17Thu
18Fri11:184.55:261.65:550.36:455:48Waxing Crescent18Fri
19Sat12:214.211:59 AM4.06:111.66:220.86:445:49Waxing Crescent19Sat
20Sun12:524.212:473.57:021.66:491.36:435:50Waxing Crescent20Sun
21Mon1:284.21:523.08:081.67:191.86:425:51First Quarter21Mon
22Tue2:114.23:382.79:341.47:582.26:405:51First Quarter22Tue
23Wed3:054.35:432.710:571.19:082.56:395:52First Quarter23Wed
24Thu4:054.47:083.012:020.76:385:53First Quarter24Thu
25Fri5:034.67:493.212:510.26:375:54Waxing Gibbous25Fri
26Sat5:574.98:183.51:32-0.26:365:55Waxing Gibbous26Sat
27Sun6:475.38:463.712:412.42:09-0.66:345:56Waxing Gibbous27Sun
28Mon7:335.69:143.91:292.12:44-0.96:335:57Waxing Gibbous28Mon
29Tue8:175.89:444.22:131.83:19-1.06:325:58Full Moon29Tue
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 4:45 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 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 Waning 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