Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 12:33 pm (3.0 ft)
Next high tide : in 54m at 9:27 am (3.3 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 9:13 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:523.55:54-1.34:282.88:5611:18Full Moon1Wed
2Thu1:453.56:41-1.45:202.98:5611:19Waning Gibbous2Thu
3Fri2:393.67:29-1.36:222.98:5511:20Waning Gibbous3Fri
4Sat12:315.73:333.88:19-1.17:372.98:5511:20Waning Gibbous4Sat
5Sun1:305.24:234.09:10-0.89:092.88:5511:21Third Quarter5Sun
6Mon2:404.65:074.410:01-0.310:472.38:5511:21Third Quarter6Mon
7Tue4:034.15:474.910:510.18:5511:22Third Quarter7Tue
8Wed5:333.66:265.312:101.611:38 AM0.78:5511:22Third Quarter8Wed
9Thu7:013.47:045.71:180.812:231.28:5411:23Waning Crescent9Thu
10Fri8:223.37:436.02:160.11:081.78:5411:23Waning Crescent10Fri
11Sat9:303.48:216.23:06-0.51:532.18:5411:24Waning Crescent11Sat
12Sun10:303.58:596.33:52-0.92:372.48:5411:24New Moon12Sun
13Mon11:243.69:376.24:35-1.13:202.78:5411:25New Moon13Mon
14Tue12:143.65:18-1.24:032.88:5411:25New Moon14Tue
15Wed1:003.65:59-1.14:472.98:5411:25New Moon15Wed
16Thu1:443.66:39-0.95:342.98:5511:26Waxing Crescent16Thu
17Fri2:273.67:18-0.66:242.98:5511:26Waxing Crescent17Fri
18Sat12:175.13:103.77:56-0.37:192.98:5511:26Waxing Crescent18Sat
19Sun12:594.73:533.88:330.08:262.98:5511:26Waxing Crescent19Sun
20Mon1:464.24:314.09:100.49:522.78:5511:27First Quarter20Mon
21Tue2:443.75:054.29:470.811:182.48:5511:27First Quarter21Tue
22Wed4:033.25:364.510:231.38:5611:27First Quarter22Wed
23Thu5:352.96:064.812:281.811:00 AM1.78:5611:27First Quarter23Thu
24Fri7:092.86:385.21:241.211:38 AM2.18:5611:27Waxing Gibbous24Fri
25Sat8:303.07:125.52:100.612:202.48:5711:28Waxing Gibbous25Sat
26Sun9:303.27:505.92:520.01:062.68:5711:28Waxing Gibbous26Sun
27Mon10:193.38:316.23:32-0.61:552.78:5711:28Waxing Gibbous27Mon
28Tue11:053.59:136.44:13-1.02:442.88:5811:28Full Moon28Tue
29Wed11:483.69:586.64:56-1.33:352.78:5811:28Full Moon29Wed
30Thu12:313.75:40-1.54:282.78:5811:28Full Moon30Thu
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 11:00 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 transitional phase. Tonight's moon is 79% 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 (79% 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