Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 1:02 pm (2.5 ft)
Next high tide : in 2h 25m at 9:12 am (3.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:184.82:244.07:300.17:262.65:528:21Waxing Crescent1Tue
2Wed12:594.43:054.18:030.48:272.65:528:21Waxing Crescent2Wed
3Thu1:454.03:474.28:370.89:452.45:538:21First Quarter3Thu
4Fri2:453.54:304.59:161.211:072.15:538:21First Quarter4Fri
5Sat4:083.15:124.710:011.55:548:21First Quarter5Sat
6Sun5:403.05:545.112:161.610:51 AM1.85:548:20First Quarter6Sun
7Mon7:073.06:365.41:131.011:44 AM2.05:558:20Waxing Gibbous7Mon
8Tue8:163.27:215.82:020.412:392.25:558:20Waxing Gibbous8Tue
9Wed9:093.58:066.22:46-0.21:342.25:568:20Waxing Gibbous9Wed
10Thu9:553.78:516.53:29-0.72:282.25:578:19Waxing Gibbous10Thu
11Fri10:394.09:386.64:11-1.13:212.15:578:19Full Moon11Fri
12Sat11:234.210:266.64:54-1.34:152.05:588:19Full Moon12Sat
13Sun12:074.45:38-1.35:111.95:588:18Full Moon13Sun
14Mon12:534.66:22-1.26:111.85:598:18Waning Gibbous14Mon
15Tue12:085.91:394.87:06-0.87:141.76:008:17Waning Gibbous15Tue
16Wed1:055.32:285.07:50-0.38:241.66:008:17Waning Gibbous16Wed
17Thu2:074.63:215.28:370.39:461.56:018:16Third Quarter17Thu
18Fri3:233.94:165.39:280.911:111.26:028:16Third Quarter18Fri
19Sat4:543.55:125.410:251.56:028:15Third Quarter19Sat
20Sun6:283.36:075.612:280.811:27 AM1.96:038:15Third Quarter20Sun
21Mon7:533.46:595.71:330.412:282.26:048:14Waning Crescent21Mon
22Tue8:553.67:465.72:260.11:262.46:048:14Waning Crescent22Tue
23Wed9:413.78:285.83:10-0.22:152.46:058:13Waning Crescent23Wed
24Thu10:193.89:065.83:48-0.32:582.46:068:12Waning Crescent24Thu
25Fri10:523.99:415.74:22-0.33:362.36:078:12New Moon25Fri
26Sat11:234.010:155.64:54-0.34:132.36:078:11New Moon26Sat
27Sun11:534.110:495.45:24-0.24:512.26:088:10New Moon27Sun
28Mon12:234.15:530.05:302.26:098:09New Moon28Mon
29Tue12:534.26:210.26:122.26:108:08Waxing Crescent29Tue
30Wed12:004.91:244.36:490.56:582.16:108:08Waxing Crescent30Wed
31Thu12:394.51:574.47:170.87:502.16:118:07Waxing Crescent31Thu
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 11:07 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 85% 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 (85% 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