Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:52 pm (2.5 ft)
Next high tide : in 3h 37m at 3:21 pm (4.2 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:476.610:334.22:381.94:02-1.710:078:38Full Moon1Wed
2Thu9:376.411:094.53:331.64:41-1.510:078:39Full Moon2Thu
3Fri10:275.911:464.84:291.35:19-1.010:068:40Waning Gibbous3Fri
4Sat11:195.25:271.15:55-0.410:058:41Waning Gibbous4Sat
5Sun12:255.012:144.46:281.06:290.410:048:42Waning Gibbous5Sun
6Mon1:055.11:193.67:361.07:031.110:038:43Waning Gibbous6Mon
7Tue1:505.12:493.08:570.97:391.810:028:44Third Quarter7Tue
8Wed2:425.04:592.710:260.78:262.410:018:45Third Quarter8Wed
9Thu3:424.97:183.011:450.39:552.810:018:46Third Quarter9Thu
10Fri4:474.98:143.212:480.010:008:47Third Quarter10Fri
11Sat5:485.08:433.41:36-0.39:598:48Waning Crescent11Sat
12Sun6:415.19:073.512:372.82:14-0.59:588:49Waning Crescent12Sun
13Mon7:255.29:273.61:232.62:47-0.69:568:50Waning Crescent13Mon
14Tue8:025.39:473.72:002.43:15-0.69:558:51Waning Crescent14Tue
15Wed8:365.310:083.82:342.13:42-0.59:548:52New Moon15Wed
16Thu9:095.310:294.03:081.94:07-0.49:538:53New Moon16Thu
17Fri9:415.110:514.13:431.74:31-0.29:528:54New Moon17Fri
18Sat10:164.811:144.34:221.54:540.19:518:55New Moon18Sat
19Sun10:544.411:394.55:031.45:160.59:508:56Waxing Crescent19Sun
20Mon11:363.95:481.25:381.09:498:57Waxing Crescent20Mon
21Tue12:054.712:283.36:401.15:591.59:488:58Waxing Crescent21Tue
22Wed12:374.81:422.87:451.06:191.99:468:59Waxing Crescent22Wed
23Thu1:174.93:552.59:120.76:382.49:459:00First Quarter23Thu
24Fri2:155.010:400.39:449:01First Quarter24Fri
25Sat3:305.17:333.111:52-0.210:072.99:439:02First Quarter25Sat
26Sun4:475.37:553.412:48-0.79:419:03Waxing Gibbous26Sun
27Mon5:565.68:213.71:35-1.19:409:04Waxing Gibbous27Mon
28Tue6:585.98:494.012:512.22:16-1.39:399:04Waxing Gibbous28Tue
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 6:06 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 72% 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 Waning Gibbous (72% 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