Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 32m at 12:33 pm (3.0 ft)
Next high tide : 7:11 pm (5.4 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:554.710:331.06:586:46First Quarter1Sun
2Mon3:094.511:460.96:596:45First Quarter2Mon
3Tue8:033.84:464.411:213.66:596:44First Quarter3Tue
4Wed8:154.06:014.612:440.712:373.37:006:42First Quarter4Wed
5Thu8:314.26:594.81:290.51:242.97:016:41Waxing Gibbous5Thu
6Fri8:474.47:475.02:050.42:032.57:026:39Waxing Gibbous6Fri
7Sat9:054.68:315.12:350.32:392.07:026:38Waxing Gibbous7Sat
8Sun9:244.99:145.13:040.43:161.47:036:37Waxing Gibbous8Sun
9Mon9:465.39:575.03:310.63:550.97:046:35Full Moon9Mon
10Tue10:105.610:454.83:590.94:380.57:056:34Full Moon10Tue
11Wed10:385.911:384.54:281.35:240.17:066:33Full Moon11Wed
12Thu11:096.14:581.86:14-0.27:076:31Waning Gibbous12Thu
13Fri12:384.111:46 AM6.25:312.37:09-0.37:076:30Waning Gibbous13Fri
14Sat1:493.812:296.16:082.88:12-0.27:086:29Waning Gibbous14Sat
15Sun3:223.61:225.86:533.29:26-0.27:096:27Third Quarter15Sun
16Mon5:103.72:315.58:063.510:45-0.27:106:26Third Quarter16Mon
17Tue6:254.04:005.210:133.511:54-0.27:116:25Third Quarter17Tue
18Wed7:124.35:275.111:543.17:126:24Third Quarter18Wed
19Thu7:474.66:425.112:51-0.21:052.57:126:22Waning Crescent19Thu
20Fri8:184.97:455.11:390.02:011.87:136:21Waning Crescent20Fri
21Sat8:475.28:405.02:190.22:481.37:146:20Waning Crescent21Sat
22Sun9:135.59:294.82:530.63:310.87:156:19Waning Crescent22Sun
23Mon9:385.710:164.63:231.04:120.47:166:18New Moon23Mon
24Tue10:035.811:034.33:511.54:510.27:176:16New Moon24Tue
25Wed10:275.811:524.14:162.05:300.07:186:15New Moon25Wed
26Thu10:515.84:402.46:100.07:196:14Waxing Crescent26Thu
27Fri12:463.811:17 AM5.65:042.86:520.17:206:13Waxing Crescent27Fri
28Sat1:473.611:46 AM5.45:273.17:380.37:216:12Waxing Crescent28Sat
29Sun3:083.512:195.15:493.48:330.57:216:11Waxing Crescent29Sun
30Mon1:014.89:380.67:226:10Waxing Crescent30Mon
31Tue2:034.510:450.77:236:09First 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 3:52 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 spring phase. Tonight's moon is 80% 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 (80% 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