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 : 8:52 pm (2.5 ft)
Next high tide : in 28m at 3:21 pm (4.2 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:433.611:34 AM5.45:143.27:280.210:319:15Waxing Crescent1Sat
2Sun1:523.511:10 AM5.24:453.37:180.49:328:14Waxing Crescent2Sun
3Mon3:243.611:53 AM4.85:283.58:150.59:338:13Waxing Crescent3Mon
4Tue4:343.712:514.56:523.69:150.69:348:12First Quarter4Tue
5Wed5:103.92:134.29:143.510:080.79:358:11First Quarter5Wed
6Thu5:354.13:434.110:453.110:530.89:368:10First Quarter6Thu
7Fri5:564.44:584.011:442.511:320.99:378:09First Quarter7Fri
8Sat6:184.86:064.012:311.99:388:08Waxing Gibbous8Sat
9Sun6:415.37:074.112:071.11:141.19:398:08Waxing Gibbous9Sun
10Mon7:075.88:034.112:421.41:560.49:408:07Waxing Gibbous10Mon
11Tue7:376.28:584.11:161.72:39-0.39:418:06Full Moon11Tue
12Wed8:106.69:544.11:522.03:25-0.99:428:05Full Moon12Wed
13Thu8:476.810:534.02:302.34:13-1.29:438:05Full Moon13Thu
14Fri9:296.911:544.03:122.65:05-1.39:448:04Full Moon14Fri
15Sat10:166.73:592.85:59-1.39:458:03Waning Gibbous15Sat
16Sun12:593.911:09 AM6.44:563.06:55-1.09:468:03Waning Gibbous16Sun
17Mon2:074.012:085.96:063.17:54-0.79:478:02Waning Gibbous17Mon
18Tue3:144.11:175.37:343.18:56-0.39:488:02Third Quarter18Tue
19Wed4:104.42:394.79:192.99:540.19:498:01Third Quarter19Wed
20Thu4:574.84:074.210:482.310:460.69:508:01Third Quarter20Thu
21Fri5:375.15:293.911:591.711:321.09:518:00Third Quarter21Fri
22Sat6:135.46:443.812:561.09:518:00Waning Crescent22Sat
23Sun6:455.77:483.812:131.51:430.49:527:59Waning Crescent23Sun
24Mon7:155.98:433.712:501.92:240.09:537:59Waning Crescent24Mon
25Tue7:436.09:323.71:222.33:01-0.39:547:59New Moon25Tue
26Wed8:106.010:183.71:522.63:36-0.49:557:58New Moon26Wed
27Thu8:386.011:043.72:212.84:12-0.59:567:58New Moon27Thu
28Fri9:075.911:483.72:513.04:49-0.59:577:58New Moon28Fri
29Sat9:395.73:233.15:26-0.49:587:58New Moon29Sat
30Sun12:333.610:13 AM5.53:593.26:05-0.39:597:58Waxing Crescent30Sun
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 6:06 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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