Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 5:06 am (-0.6 ft)
Next high tide : in 5h 55m at 9:24 pm (5.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:225.710:013.92:182.13:32-0.97:015:31New Moon1Tue
2Wed8:595.610:294.02:582.04:03-0.77:015:32New Moon2Wed
3Thu9:355.410:564.13:371.84:32-0.57:005:33New Moon3Thu
4Fri10:105.011:234.24:151.74:59-0.16:595:34New Moon4Fri
5Sat10:464.711:504.34:551.65:240.26:585:35Waxing Crescent5Sat
6Sun11:234.25:371.65:480.66:575:36Waxing Crescent6Sun
7Mon12:184.412:053.76:241.66:111.16:565:37Waxing Crescent7Mon
8Tue12:484.412:553.27:191.66:341.56:565:38Waxing Crescent8Tue
9Wed1:244.52:122.78:341.56:572.06:555:39First Quarter9Wed
10Thu2:094.54:252.510:041.37:252.36:545:40First Quarter10Thu
11Fri3:074.611:220.86:535:41First Quarter11Fri
12Sat4:114.87:352.912:200.36:525:42First Quarter12Sat
13Sun5:125.18:013.21:06-0.26:515:43Waxing Gibbous13Sun
14Mon6:095.48:263.51:45-0.66:505:44Waxing Gibbous14Mon
15Tue7:015.78:533.812:492.32:21-0.96:495:45Waxing Gibbous15Tue
16Wed7:496.09:224.11:411.92:56-1.16:475:46Full Moon16Wed
17Thu8:366.09:534.52:311.43:32-1.16:465:47Full Moon17Thu
18Fri9:245.910:274.83:211.04:08-0.96:455:48Full Moon18Fri
19Sat10:145.511:045.14:140.74:44-0.56:445:49Full Moon19Sat
20Sun11:075.011:435.45:090.45:210.06:435:50Waning Gibbous20Sun
21Mon12:054.36:080.35:580.76:425:51Waning Gibbous21Mon
22Tue12:265.41:123.67:130.36:381.36:415:51Waning Gibbous22Tue
23Wed1:155.42:423.18:290.37:251.96:395:52Third Quarter23Wed
24Thu2:145.24:343.09:550.28:362.46:385:53Third Quarter24Thu
25Fri3:265.16:163.211:15-0.110:162.66:375:54Third Quarter25Fri
26Sat4:405.07:193.412:21-0.36:365:55Third Quarter26Sat
27Sun5:485.17:593.71:13-0.56:345:56Waning Crescent27Sun
28Mon6:465.18:303.912:472.21:55-0.56:335:57Waning Crescent28Mon
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 1:15 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 99% 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 Full Moon (99% 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