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 (tomorrow) : 6:46 am (-0.6 ft)
Next high tide : in 4h 43m at 11:09 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:164.98:423.11:200.17:025:30Waning Crescent1Fri
2Sat6:085.19:023.31:58-0.27:015:31Waning Crescent2Sat
3Sun6:545.39:223.412:342.82:31-0.57:005:33Waning Crescent3Sun
4Mon7:345.59:443.61:212.63:02-0.86:595:34Waning Crescent4Mon
5Tue8:125.710:073.72:022.43:33-0.96:585:35New Moon5Tue
6Wed8:495.810:323.92:422.24:03-1.06:585:36New Moon6Wed
7Thu9:275.710:594.13:241.94:32-0.86:575:37New Moon7Thu
8Fri10:075.411:274.44:091.75:01-0.66:565:38New Moon8Fri
9Sat10:525.011:574.74:591.55:31-0.16:555:39Waxing Crescent9Sat
10Sun11:414.45:531.26:000.46:545:40Waxing Crescent10Sun
11Mon12:314.912:413.76:551.16:301.06:535:41Waxing Crescent11Mon
12Tue1:105.12:033.08:110.87:031.76:525:42First Quarter12Tue
13Wed1:595.24:062.79:420.57:462.26:515:43First Quarter13Wed
14Thu3:005.36:212.811:080.09:082.76:505:44First Quarter14Thu
15Fri4:115.57:343.212:18-0.56:495:45First Quarter15Fri
16Sat5:225.68:143.51:14-0.96:485:45Waxing Gibbous16Sat
17Sun6:275.88:463.812:152.62:01-1.26:475:46Waxing Gibbous17Sun
18Mon7:235.99:164.01:182.22:42-1.36:465:47Waxing Gibbous18Mon
19Tue8:125.99:464.22:101.93:19-1.26:445:48Full Moon19Tue
20Wed8:565.810:154.42:561.53:53-0.96:435:49Full Moon20Wed
21Thu9:385.410:444.53:411.34:24-0.66:425:50Full Moon21Thu
22Fri10:205.011:134.64:261.14:52-0.16:415:51Full Moon22Fri
23Sat11:024.511:404.75:111.05:180.56:405:52Waning Gibbous23Sat
24Sun11:473.95:571.05:411.06:395:53Waning Gibbous24Sun
25Mon12:084.712:373.36:461.06:011.66:375:54Waning Gibbous25Mon
26Tue12:384.61:442.87:451.06:162.16:365:55Waning Gibbous26Tue
27Wed1:134.53:502.59:051.06:182.56:355:56Third Quarter27Wed
28Thu2:014.410:330.86:345:57Third Quarter28Thu
29Fri3:134.311:470.56:325:58Third Quarter29Fri
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 2:57 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 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