Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:36 pm (2.7 ft)
Next high tide : in 3h 39m at 11:23 am (3.7 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:545.77:483.212:50-0.67:015:31Waning Crescent1Tue
2Wed5:576.08:273.51:40-1.17:005:32Waning Crescent2Wed
3Thu6:566.39:023.812:342.42:25-1.57:005:33Waning Crescent3Thu
4Fri7:496.49:364.11:362.13:06-1.66:595:34New Moon4Fri
5Sat8:396.410:114.32:311.83:46-1.56:585:35New Moon5Sat
6Sun9:276.110:474.63:231.44:24-1.26:575:36New Moon6Sun
7Mon10:145.711:224.84:151.25:00-0.86:565:37New Moon7Mon
8Tue11:035.111:584.95:091.15:34-0.26:555:38Waxing Crescent8Tue
9Wed11:534.46:031.06:060.46:545:39Waxing Crescent9Wed
10Thu12:354.912:493.77:021.06:371.16:535:40Waxing Crescent10Thu
11Fri1:144.92:023.08:111.17:071.76:525:41First Quarter11Fri
12Sat1:594.83:552.79:371.07:402.36:515:42First Quarter12Sat
13Sun2:544.76:252.811:030.88:412.76:505:43First Quarter13Sun
14Mon3:594.67:463.012:120.56:495:44First Quarter14Mon
15Tue5:034.78:153.21:040.16:485:45Waxing Gibbous15Tue
16Wed6:014.88:373.41:44-0.16:475:46Waxing Gibbous16Wed
17Thu6:495.08:573.512:452.62:16-0.36:465:47Waxing Gibbous17Thu
18Fri7:305.29:173.71:282.32:45-0.56:455:48Waxing Gibbous18Fri
19Sat8:065.39:383.92:052.13:12-0.56:445:49Full Moon19Sat
20Sun8:415.310:004.12:411.83:37-0.46:425:50Full Moon20Sun
21Mon9:175.210:244.33:191.54:03-0.36:415:51Full Moon21Mon
22Tue9:545.010:484.53:591.34:280.06:405:52Full Moon22Tue
23Wed10:354.611:154.74:421.04:540.46:395:53Waning Gibbous23Wed
24Thu11:214.111:454.95:290.85:200.86:385:53Waning Gibbous24Thu
25Fri12:153.66:220.75:471.36:365:54Waning Gibbous25Fri
26Sat12:215.11:253.17:250.66:161.86:355:55Waning Gibbous26Sat
27Sun1:055.13:122.78:450.46:522.26:345:56Third Quarter27Sun
28Mon2:035.15:222.810:120.17:592.66:335:57Third Quarter28Mon
29Tue3:195.26:473.111:27-0.310:052.86:315:58Third Quarter29Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 1:29 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 99% 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 (99% 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