Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 4h 12m at 3:56 am (-0.4 ft)
Next high tide (tomorrow) : 10:51 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:305.611:023.93:232.24:350.39:318:15Full Moon1Sun
2Mon9:555.611:523.83:472.55:130.29:328:14Waning Gibbous2Mon
3Tue10:225.54:132.85:550.29:338:13Waning Gibbous3Tue
4Wed12:523.610:53 AM5.34:413.16:420.39:348:12Waning Gibbous4Wed
5Thu2:103.611:31 AM5.25:153.37:370.49:358:11Waning Gibbous5Thu
6Fri3:473.612:214.96:073.58:410.49:368:10Third Quarter6Fri
7Sat4:523.81:324.77:563.69:460.49:378:09Third Quarter7Sat
8Sun5:284.13:044.59:583.410:420.39:388:08Third Quarter8Sun
9Mon5:564.44:294.511:132.811:300.39:398:08Third Quarter9Mon
10Tue6:244.85:424.612:112.19:408:07Waning Crescent10Tue
11Wed6:525.36:484.612:140.41:021.39:418:06Waning Crescent11Wed
12Thu7:225.87:484.712:540.61:500.59:428:05Waning Crescent12Thu
13Fri7:556.28:454.61:340.92:38-0.29:438:05New Moon13Fri
14Sat8:306.69:424.52:121.33:26-0.89:448:04New Moon14Sat
15Sun9:076.810:424.42:521.74:16-1.19:458:03New Moon15Sun
16Mon9:476.811:454.23:342.15:07-1.29:468:03New Moon16Mon
17Tue10:306.54:192.56:01-1.19:478:02Waxing Crescent17Tue
18Wed12:514.111:18 AM6.15:112.96:56-0.89:488:02Waxing Crescent18Wed
19Thu2:054.012:115.66:143.27:56-0.59:498:01Waxing Crescent19Thu
20Fri3:214.11:155.07:373.39:00-0.19:508:01First Quarter20Fri
21Sat4:264.32:344.59:253.210:010.29:518:00First Quarter21Sat
22Sun5:174.53:594.110:562.810:550.59:528:00First Quarter22Sun
23Mon5:574.75:164.012:022.39:527:59First Quarter23Mon
24Tue6:294.96:223.912:531.79:537:59Waxing Gibbous24Tue
25Wed6:575.17:193.812:201.11:341.29:547:59Waxing Gibbous25Wed
26Thu7:215.38:083.812:541.52:090.89:557:58Waxing Gibbous26Thu
27Fri7:435.58:523.81:231.82:420.49:567:58Waxing Gibbous27Fri
28Sat8:065.79:353.81:502.13:140.19:577:58Full Moon28Sat
29Sun8:315.810:203.82:172.33:48-0.19:587:58Full Moon29Sun
30Mon8:575.811:063.72:442.64:23-0.39:597:58Full Moon30Mon
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 7:23 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 90% 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 Gibbous (90% 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