Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:03 pm (2.9 ft)
Next high tide : in 5h 34m at 11:29 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:224.98:293.712:232.51:43-0.39:399:05Waning Crescent1Fri
2Sat7:095.08:563.81:142.32:20-0.49:379:06Waning Crescent2Sat
3Sun7:495.19:213.81:532.12:52-0.49:369:07Waning Crescent3Sun
4Mon8:255.19:443.92:271.93:21-0.49:359:07New Moon4Mon
5Tue8:585.110:074.02:591.73:48-0.39:339:08New Moon5Tue
6Wed9:315.010:314.13:321.54:14-0.19:329:09New Moon6Wed
7Thu10:054.810:564.34:071.34:400.19:319:10New Moon7Thu
8Fri10:414.511:224.44:441.25:060.59:299:11Waxing Crescent8Fri
9Sat11:214.111:504.45:251.15:320.89:289:12Waxing Crescent9Sat
10Sun1:073.77:101.16:581.310:2710:13Waxing Crescent10Sun
11Mon1:214.52:053.28:041.07:261.710:2510:13Waxing Crescent11Mon
12Tue1:584.63:332.99:140.98:012.110:2410:14First Quarter12Tue
13Wed2:484.65:332.810:380.79:002.510:2210:15First Quarter13Wed
14Thu3:544.77:103.111:560.310:452.710:2110:16First Quarter14Thu
15Fri5:104.88:043.41:00-0.210:2010:17First Quarter15Fri
16Sat6:205.18:413.712:142.51:53-0.710:1810:18Waxing Gibbous16Sat
17Sun7:245.49:144.11:232.22:39-1.010:1710:18Waxing Gibbous17Sun
18Mon8:225.79:474.42:211.73:21-1.110:1510:19Waxing Gibbous18Mon
19Tue9:145.810:214.73:131.24:01-1.010:1410:20Full Moon19Tue
20Wed10:045.710:565.04:030.74:40-0.810:1310:21Full Moon20Wed
21Thu10:555.411:335.24:530.35:18-0.410:1110:22Full Moon21Thu
22Fri11:485.05:450.15:560.210:1010:22Full Moon22Fri
23Sat12:105.312:434.46:380.06:340.810:0810:23Waning Gibbous23Sat
24Sun12:505.31:443.97:340.07:121.410:0710:24Waning Gibbous24Sun
25Mon1:315.13:003.48:350.17:552.010:0610:25Waning Gibbous25Mon
26Tue2:194.84:403.29:480.28:522.510:0410:26Third Quarter26Tue
27Wed3:184.56:243.211:070.310:322.810:0310:27Third Quarter27Wed
28Thu4:334.37:393.512:180.210:0110:27Third Quarter28Thu
29Fri5:484.28:223.712:102.71:170.110:0010:28Third Quarter29Fri
30Sat6:534.38:513.81:182.52:030.09:5910:29Waning Crescent30Sat
31Sun7:464.49:154.02:052.22:400.09:5710:30Waning Crescent31Sun
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 1:16 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 98% 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 Full Moon (98% 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