Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 42m at 10:52 am (1.1 ft)
Next high tide : 5:49 pm (5.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:043.76:025.311:110.95:528:21First Quarter1Tue
2Wed6:323.56:485.512:521.012:041.35:538:21Waxing Gibbous2Wed
3Thu7:533.47:315.71:530.512:561.75:538:21Waxing Gibbous3Thu
4Fri8:593.58:115.82:440.11:442.05:548:21Waxing Gibbous4Fri
5Sat9:513.68:475.83:27-0.22:272.35:548:21Waxing Gibbous5Sat
6Sun10:363.79:215.84:06-0.43:062.45:558:20Full Moon6Sun
7Mon11:173.79:545.84:42-0.53:432.55:558:20Full Moon7Mon
8Tue11:543.810:275.75:17-0.54:192.65:568:20Full Moon8Tue
9Wed12:303.85:50-0.54:572.65:568:20Full Moon9Wed
10Thu1:063.86:24-0.45:382.65:578:19Waning Gibbous10Thu
11Fri1:423.96:57-0.26:232.75:588:19Waning Gibbous11Fri
12Sat12:125.02:204.07:300.17:122.75:588:18Waning Gibbous12Sat
13Sun12:524.63:004.18:030.48:112.75:598:18Waning Gibbous13Sun
14Mon1:374.23:434.28:390.79:262.66:008:18Third Quarter14Mon
15Tue2:353.74:254.49:191.110:522.26:008:17Third Quarter15Tue
16Wed3:583.35:074.710:051.46:018:17Third Quarter16Wed
17Thu5:333.15:495.112:051.710:55 AM1.86:028:16Third Quarter17Thu
18Fri7:013.26:335.51:061.111:49 AM2.06:028:16Waning Crescent18Fri
19Sat8:143.47:195.91:580.412:442.26:038:15Waning Crescent19Sat
20Sun9:093.68:066.32:44-0.21:402.26:048:14Waning Crescent20Sun
21Mon9:573.98:536.63:29-0.82:342.26:048:14Waning Crescent21Mon
22Tue10:434.19:406.84:13-1.23:262.16:058:13New Moon22Tue
23Wed11:284.310:296.74:58-1.44:202.06:068:13New Moon23Wed
24Thu12:144.55:43-1.45:161.96:068:12New Moon24Thu
25Fri1:004.66:27-1.16:161.86:078:11Waxing Crescent25Fri
26Sat12:136.01:474.87:12-0.77:181.86:088:10Waxing Crescent26Sat
27Sun1:095.42:364.97:57-0.28:281.76:098:10Waxing Crescent27Sun
28Mon2:114.73:295.18:440.49:491.66:098:09First Quarter28Mon
29Tue3:264.04:255.29:351.111:131.36:108:08First Quarter29Tue
30Wed4:573.55:205.310:331.66:118:07First Quarter30Wed
31Thu6:313.46:145.412:290.911:34 AM2.16:128:06First Quarter31Thu
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 2:20 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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