Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:01 pm (2.8 ft)
Next high tide : in 5h 51m at 1:08 pm (3.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:444.25:092.810:311.18:532.59:389:05Third Quarter1Tue
2Wed3:504.36:313.011:370.710:262.59:369:06Third Quarter2Wed
3Thu4:544.57:163.312:290.39:359:07Third Quarter3Thu
4Fri5:514.87:493.61:12-0.19:349:08Waning Crescent4Fri
5Sat6:425.18:183.912:352.11:50-0.59:329:09Waning Crescent5Sat
6Sun7:305.48:484.21:251.72:27-0.79:319:10Waning Crescent6Sun
7Mon8:165.69:204.52:111.33:03-0.89:309:11New Moon7Mon
8Tue9:025.69:554.82:570.93:40-0.79:289:11New Moon8Tue
9Wed9:505.510:325.13:460.54:18-0.59:279:12New Moon9Wed
10Thu10:415.111:125.34:370.34:57-0.19:269:13Waxing Crescent10Thu
11Fri11:364.611:545.35:320.15:380.49:249:14Waxing Crescent11Fri
12Sat12:384.16:300.16:221.09:239:15Waxing Crescent12Sat
13Sun12:425.32:533.68:370.18:121.610:2110:16Waxing Crescent13Sun
14Mon2:375.14:273.39:550.19:192.010:2010:17First Quarter14Mon
15Tue3:444.96:023.411:170.110:482.310:1910:17First Quarter15Tue
16Wed4:594.87:203.612:30-0.110:1710:18First Quarter16Wed
17Thu6:124.88:143.912:142.21:30-0.210:1610:19Waxing Gibbous17Thu
18Fri7:164.88:544.11:232.02:20-0.310:1410:20Waxing Gibbous18Fri
19Sat8:104.99:264.32:171.73:00-0.310:1310:21Waxing Gibbous19Sat
20Sun8:554.99:544.43:011.43:35-0.210:1210:21Waxing Gibbous20Sun
21Mon9:344.810:204.53:391.14:050.010:1010:22Full Moon21Mon
22Tue10:114.710:454.54:140.94:330.310:0910:23Full Moon22Tue
23Wed10:474.511:104.64:490.84:590.610:0710:24Full Moon23Wed
24Thu11:244.311:364.65:240.65:240.910:0610:25Full Moon24Thu
25Fri12:034.06:010.65:501.210:0510:25Waning Gibbous25Fri
26Sat12:024.612:463.76:400.66:161.510:0310:26Waning Gibbous26Sat
27Sun12:314.61:353.47:230.66:441.910:0210:27Waning Gibbous27Sun
28Mon1:034.52:373.18:130.77:152.210:0010:28Waning Gibbous28Mon
29Tue1:414.34:062.99:160.77:572.59:5910:29Waning Gibbous29Tue
30Wed2:324.25:433.010:310.79:192.79:5810:30Third Quarter30Wed
31Thu3:454.16:503.211:390.511:082.79:5610:30Third Quarter31Thu
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 3:04 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 97% 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 (97% 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