Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 6h 37m at 2:38 am (0.2 ft)
Next high tide (tomorrow) : 9:12 am (3.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:133.97:255.22:130.31:323.06:367:29Waning Crescent1Sat
2Sun9:394.08:105.32:520.22:162.86:377:27Waning Crescent2Sun
3Mon10:024.18:495.53:260.12:512.56:377:26Waning Crescent3Mon
4Tue10:244.29:245.53:550.03:252.36:387:25New Moon4Tue
5Wed10:464.39:585.54:230.13:592.16:397:23New Moon5Wed
6Thu11:094.410:335.44:490.24:341.86:407:22New Moon6Thu
7Fri11:334.611:105.15:150.45:131.66:407:20New Moon7Fri
8Sat11:584.811:514.85:400.75:561.56:417:19Waxing Crescent8Sat
9Sun12:244.96:061.16:421.36:427:17Waxing Crescent9Sun
10Mon12:394.412:535.16:321.57:351.26:427:16Waxing Crescent10Mon
11Tue1:363.91:285.26:592.08:401.16:437:15Waxing Crescent11Tue
12Wed2:553.42:135.27:292.510:010.96:447:13First Quarter12Wed
13Thu4:523.33:145.38:123.011:240.56:457:12First Quarter13Thu
14Fri6:463.44:325.49:463.36:457:10First Quarter14Fri
15Sat7:513.75:505.612:340.111:36 AM3.26:467:09Waxing Gibbous15Sat
16Sun8:294.16:585.91:32-0.312:552.96:477:07Waxing Gibbous16Sun
17Mon9:014.47:596.12:21-0.61:572.46:487:06Waxing Gibbous17Mon
18Tue9:324.78:536.23:04-0.72:501.86:487:04Waxing Gibbous18Tue
19Wed10:035.09:436.13:43-0.63:391.36:497:03Full Moon19Wed
20Thu10:355.210:325.84:21-0.34:281.06:507:01Full Moon20Thu
21Fri11:085.511:225.34:560.25:170.76:517:00Full Moon21Fri
22Sat11:415.65:310.76:080.56:516:59Waning Gibbous22Sat
23Sun12:154.812:155.66:051.36:590.56:526:57Waning Gibbous23Sun
24Mon1:134.312:505.56:382.07:540.66:536:56Waning Gibbous24Mon
25Tue2:233.81:285.27:122.68:590.86:546:54Waning Gibbous25Tue
26Wed4:003.62:135.07:503.110:170.86:546:53Third Quarter26Wed
27Thu6:003.63:164.78:593.411:340.86:556:51Third Quarter27Thu
28Fri7:273.84:404.511:083.56:566:50Third Quarter28Fri
29Sat8:074.05:554.612:380.712:323.36:576:49Third Quarter29Sat
30Sun8:334.26:564.71:290.61:253.06:576:47Waning 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 5:55 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 transitional phase. Tonight's moon is 77% 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 Waxing Gibbous (77% 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