Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 2:25 pm (2.9 ft)
Next high tide : in 6h 54m at 10:51 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:203.99:026.33:42-0.82:492.59:1911:12Waxing Gibbous1Sat
2Sun11:004.09:446.24:24-0.93:362.59:2011:11Full Moon2Sun
3Mon11:374.110:256.15:03-0.84:202.49:2111:10Full Moon3Mon
4Tue12:124.15:40-0.75:042.39:2111:09Full Moon4Tue
5Wed12:464.26:15-0.45:472.39:2211:08Waning Gibbous5Wed
6Thu1:194.26:470.06:332.39:2311:07Waning Gibbous6Thu
7Fri12:245.01:524.37:180.47:212.29:2411:06Waning Gibbous7Fri
8Sat1:064.52:264.37:480.98:182.29:2511:05Waning Gibbous8Sat
9Sun1:553.93:044.48:181.49:302.19:2511:04Third Quarter9Sun
10Mon3:013.43:474.58:501.910:561.99:2611:03Third Quarter10Mon
11Tue4:403.14:354.79:322.39:2711:02Third Quarter11Tue
12Wed6:323.05:244.912:131.510:29 AM2.79:2811:01Third Quarter12Wed
13Thu8:033.26:145.11:141.011:36 AM2.99:2811:00Third Quarter13Thu
14Fri8:543.57:035.42:020.612:392.99:2910:59Waning Crescent14Fri
15Sat9:303.77:505.72:430.11:352.89:3010:57Waning Crescent15Sat
16Sun10:013.98:356.13:20-0.32:242.69:3110:56Waning Crescent16Sun
17Mon10:314.09:186.33:57-0.63:102.49:3110:55New Moon17Mon
18Tue11:034.210:036.44:34-0.83:562.19:3210:54New Moon18Tue
19Wed11:374.410:496.25:11-0.84:451.99:3310:53New Moon19Wed
20Thu12:134.75:48-0.65:381.69:3410:51New Moon20Thu
21Fri12:504.96:26-0.36:351.49:3410:50Waxing Crescent21Fri
22Sat12:315.41:305.17:040.37:381.39:3510:49Waxing Crescent22Sat
23Sun1:314.72:155.37:430.98:501.19:3610:48Waxing Crescent23Sun
24Mon2:444.03:065.48:271.610:130.99:3710:46First Quarter24Mon
25Tue4:203.64:065.59:212.211:370.69:3710:45First Quarter25Tue
26Wed6:083.55:115.610:352.69:3810:44First Quarter26Wed
27Thu7:403.76:165.712:490.211:56 AM2.89:3910:42Waxing Gibbous27Thu
28Fri8:413.97:175.81:50-0.21:082.89:4010:41Waxing Gibbous28Fri
29Sat9:234.18:105.92:40-0.42:082.69:4010:40Waxing Gibbous29Sat
30Sun9:574.38:565.93:23-0.42:552.49:4110:38Waxing Gibbous30Sun
31Mon10:284.49:375.84:01-0.43:362.29:4210:37Full Moon31Mon
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 12:38 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 spring phase. Tonight's moon is 95% 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 (95% 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