Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 10m at 7:17 am (-0.4 ft)
Next high tide : 2:14 pm (3.8 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:526.49:304.21:411.83:04-1.47:015:31Full Moon1Sat
2Sun8:416.410:124.42:341.63:46-1.47:005:33Full Moon2Sun
3Mon9:286.210:534.63:251.44:27-1.36:595:34Full Moon3Mon
4Tue10:155.911:344.74:171.35:07-0.96:585:35Full Moon4Tue
5Wed11:035.35:091.35:46-0.56:575:36Waning Gibbous5Wed
6Thu12:154.711:52 AM4.76:041.36:240.16:575:37Waning Gibbous6Thu
7Fri12:584.712:464.17:021.47:020.76:565:38Waning Gibbous7Fri
8Sat1:444.61:503.48:111.47:431.36:555:39Third Quarter8Sat
9Sun2:354.63:193.09:341.38:331.86:545:40Third Quarter9Sun
10Mon3:324.55:042.910:551.19:402.26:535:41Third Quarter10Mon
11Tue4:304.66:393.012:030.86:525:42Third Quarter11Tue
12Wed5:254.77:373.212:560.46:515:43Waning Crescent12Wed
13Thu6:144.88:133.41:370.16:505:44Waning Crescent13Thu
14Fri6:575.08:423.612:472.32:11-0.16:495:45Waning Crescent14Fri
15Sat7:365.29:093.71:292.22:42-0.36:485:45Waning Crescent15Sat
16Sun8:115.39:353.92:062.03:12-0.46:465:46New Moon16Sun
17Mon8:455.310:024.02:411.83:41-0.56:455:47New Moon17Mon
18Tue9:205.310:314.23:181.64:11-0.46:445:48New Moon18Tue
19Wed9:575.111:004.33:571.44:41-0.26:435:49New Moon19Wed
20Thu10:364.911:324.54:401.35:120.06:425:50Waxing Crescent20Thu
21Fri11:204.55:261.25:440.46:415:51Waxing Crescent21Fri
22Sat12:074.612:114.06:181.16:180.86:405:52Waxing Crescent22Sat
23Sun12:464.71:143.57:201.06:571.36:385:53Waxing Crescent23Sun
24Mon1:344.82:413.18:370.97:471.76:375:54First Quarter24Mon
25Tue2:334.94:263.010:030.69:012.16:365:55First Quarter25Tue
26Wed3:415.05:583.211:190.110:272.26:355:56First Quarter26Wed
27Thu4:505.27:023.512:22-0.36:335:57Waxing Gibbous27Thu
28Fri5:555.47:493.91:15-0.76:325:58Waxing Gibbous28Fri
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 10:45 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 87% 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 Waning Gibbous (87% 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