Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 48m at 3:19 am (-0.2 ft)
Next high tide : 10:07 am (3.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:505.111:455.55:33-0.25:421.16:357:29Waning Gibbous1Mon
2Tue12:255.46:080.36:400.86:367:28Waning Gibbous2Tue
3Wed12:424.91:035.76:431.07:430.66:377:27Waning Gibbous3Wed
4Thu1:484.21:465.77:201.78:560.66:387:25Waning Gibbous4Thu
5Fri3:153.62:375.78:002.310:210.46:387:24Third Quarter5Fri
6Sat5:123.43:425.68:572.911:440.26:397:22Third Quarter6Sat
7Sun7:053.64:585.510:353.26:407:21Third Quarter7Sun
8Mon8:133.96:125.512:560.012:123.26:417:20Waning Crescent8Mon
9Tue8:544.17:175.61:54-0.21:242.96:417:18Waning Crescent9Tue
10Wed9:254.38:115.62:41-0.32:182.66:427:17Waning Crescent10Wed
11Thu9:524.48:565.63:20-0.33:002.26:437:15Waning Crescent11Thu
12Fri10:174.59:355.53:53-0.13:381.96:447:14New Moon12Fri
13Sat10:394.610:115.34:210.24:131.76:447:12New Moon13Sat
14Sun11:014.710:475.14:470.54:491.56:457:11New Moon14Sun
15Mon11:224.811:254.75:100.95:261.36:467:09New Moon15Mon
16Tue11:444.95:311.36:051.26:467:08Waxing Crescent16Tue
17Wed12:054.312:065.05:511.76:461.26:477:07Waxing Crescent17Wed
18Thu12:513.912:305.06:112.27:331.26:487:05Waxing Crescent18Thu
19Fri1:473.512:575.06:282.68:301.26:497:04Waxing Crescent19Fri
20Sat3:133.21:314.96:402.99:471.26:497:02First Quarter20Sat
21Sun2:234.811:111.06:507:01First Quarter21Sun
22Mon3:474.76:516:59First Quarter22Mon
23Tue8:223.75:144.912:190.611:12 AM3.66:526:58First Quarter23Tue
24Wed8:293.96:245.21:110.312:333.26:526:56Waxing Gibbous24Wed
25Thu8:454.27:245.51:550.01:292.76:536:55Waxing Gibbous25Thu
26Fri9:064.58:175.72:32-0.22:182.16:546:54Waxing Gibbous26Fri
27Sat9:304.99:075.83:07-0.33:051.56:556:52Waxing Gibbous27Sat
28Sun9:575.39:575.73:41-0.13:530.96:556:51Full Moon28Sun
29Mon10:275.710:505.44:150.24:420.46:566:49Full Moon29Mon
30Tue11:006.011:474.94:500.75:350.06:576:48Full Moon30Tue
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 6:43 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 91% 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 Waxing Gibbous (91% 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