Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 2:38 am (0.2 ft)
Next high tide : in 1h 59m at 7:06 pm (5.4 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 - Jul 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:073.95:305.010:360.65:528:21Third Quarter1Sun
2Mon5:363.46:135.312:101.511:24 AM1.25:538:21Third Quarter2Mon
3Tue7:073.26:545.51:190.912:121.75:538:21Waning Crescent3Tue
4Wed8:293.37:325.72:160.412:582.25:548:21Waning Crescent4Wed
5Thu9:333.48:085.73:020.01:422.55:548:21Waning Crescent5Thu
6Fri10:243.58:435.83:42-0.32:232.75:558:20Waning Crescent6Fri
7Sat11:083.69:165.84:19-0.53:012.85:558:20New Moon7Sat
8Sun11:463.69:505.84:54-0.63:382.85:568:20New Moon8Sun
9Mon12:223.65:28-0.64:152.85:568:20New Moon9Mon
10Tue12:563.66:02-0.54:542.85:578:19New Moon10Tue
11Wed1:303.76:35-0.45:362.85:588:19Waxing Crescent11Wed
12Thu2:053.87:07-0.36:232.85:588:18Waxing Crescent12Thu
13Fri12:125.12:413.97:39-0.17:162.85:598:18Waxing Crescent13Fri
14Sat12:534.73:174.08:100.38:202.76:008:18Waxing Crescent14Sat
15Sun1:404.23:534.38:440.69:412.56:008:17First Quarter15Sun
16Mon2:433.74:304.69:201.111:062.16:018:17First Quarter16Mon
17Tue4:123.25:084.910:011.56:028:16First Quarter17Tue
18Wed5:543.05:495.412:181.410:49 AM2.06:028:16First Quarter18Wed
19Thu7:313.16:345.81:200.711:42 AM2.36:038:15Waxing Gibbous19Thu
20Fri8:463.37:236.22:13-0.112:412.56:048:14Waxing Gibbous20Fri
21Sat9:413.68:136.63:02-0.71:422.66:048:14Waxing Gibbous21Sat
22Sun10:283.89:046.93:48-1.32:402.56:058:13Full Moon22Sun
23Mon11:134.09:546.94:35-1.63:362.46:068:12Full Moon23Mon
24Tue11:574.110:456.85:21-1.64:332.36:068:12Full Moon24Tue
25Wed12:404.36:06-1.55:322.16:078:11Waning Gibbous25Wed
26Thu1:244.56:49-1.26:332.06:088:10Waning Gibbous26Thu
27Fri12:305.82:084.77:32-0.67:381.96:098:10Waning Gibbous27Fri
28Sat1:275.12:544.98:130.08:521.86:098:09Waning Gibbous28Sat
29Sun2:314.33:435.08:560.710:171.66:108:08Third Quarter29Sun
30Mon3:533.64:335.19:431.411:421.36:118:07Third Quarter30Mon
31Tue5:343.25:235.210:352.16:128:06Third Quarter31Tue
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 10:52 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 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