Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 55m at 3:36 am (-0.2 ft)
Next high tide : 10:32 am (3.6 ft)
Sunset today : 11:17 pm
Sunrise tomorrow : 9:14 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:205.78:404.31:121.72:19-1.09:379:06Waning Crescent1Thu
2Fri8:115.89:134.72:051.12:57-0.99:369:07New Moon2Fri
3Sat9:015.79:495.12:560.73:35-0.79:349:07New Moon3Sat
4Sun9:525.410:265.43:480.34:13-0.49:339:08New Moon4Sun
5Mon10:455.011:065.54:410.04:510.19:329:09Waxing Crescent5Mon
6Tue11:424.411:485.55:37-0.15:310.79:309:10Waxing Crescent6Tue
7Wed12:453.86:35-0.16:121.39:299:11Waxing Crescent7Wed
8Thu12:355.42:013.47:410.16:591.89:289:12Waxing Crescent8Thu
9Fri1:285.13:403.18:590.28:022.39:269:13First Quarter9Fri
10Sat2:344.85:193.210:210.29:372.59:259:13First Quarter10Sat
11Sun4:504.67:333.412:330.110:2410:14First Quarter11Sun
12Mon6:044.68:203.612:072.51:310.010:2210:15First Quarter12Mon
13Tue7:074.68:533.81:162.22:17-0.110:2110:16Waxing Gibbous13Tue
14Wed7:594.79:194.02:071.92:530.010:1910:17Waxing Gibbous14Wed
15Thu8:414.79:424.22:471.63:230.110:1810:18Waxing Gibbous15Thu
16Fri9:194.710:044.33:221.33:490.210:1710:18Waxing Gibbous16Fri
17Sat9:544.610:264.53:561.04:130.410:1510:19Full Moon17Sat
18Sun10:294.410:484.64:290.84:370.610:1410:20Full Moon18Sun
19Mon11:054.211:124.75:040.65:010.910:1210:21Full Moon19Mon
20Tue11:444.011:384.85:410.55:251.210:1110:22Full Moon20Tue
21Wed12:273.76:210.45:501.510:1010:23Waning Gibbous21Wed
22Thu12:064.81:153.47:050.46:161.810:0810:23Waning Gibbous22Thu
23Fri12:384.82:163.07:550.46:452.210:0710:24Waning Gibbous23Fri
24Sat1:174.73:432.98:570.47:232.410:0510:25Waning Gibbous24Sat
25Sun2:094.65:242.910:120.38:332.710:0410:26Third Quarter25Sun
26Mon3:214.56:353.211:240.210:332.710:0310:27Third Quarter26Mon
27Tue4:454.67:193.512:24-0.110:0110:27Third Quarter27Tue
28Wed6:024.77:543.912:052.31:16-0.310:0010:28Waning Crescent28Wed
29Thu7:104.98:274.41:141.82:00-0.49:5810:29Waning Crescent29Thu
30Fri8:105.09:004.92:111.12:42-0.39:5710:30Waning Crescent30Fri
31Sat9:055.19:345.33:020.53:21-0.29:5610:31Waning Crescent31Sat
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 7:04 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 spring phase. Tonight's moon is 92% 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 (92% 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