Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 14m at 8:53 am (0.7 ft)
Next high tide : 3:57 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:173.16:595.51:311.012:101.85:528:21Waxing Gibbous1Mon
2Tue8:313.37:376.02:190.312:562.15:538:21Waxing Gibbous2Tue
3Wed9:313.58:196.43:05-0.41:462.35:538:21Waxing Gibbous3Wed
4Thu10:253.69:036.73:50-1.02:362.45:548:21Full Moon4Thu
5Fri11:163.89:496.84:36-1.43:282.55:548:21Full Moon5Fri
6Sat12:053.95:23-1.74:222.55:558:20Full Moon6Sat
7Sun12:544.06:10-1.75:212.55:558:20Waning Gibbous7Sun
8Mon1:424.26:57-1.56:242.45:568:20Waning Gibbous8Mon
9Tue12:246.12:314.47:44-1.17:322.45:568:20Waning Gibbous9Tue
10Wed1:225.43:224.68:31-0.68:512.25:578:19Waning Gibbous10Wed
11Thu2:274.74:134.89:190.010:201.95:578:19Third Quarter11Thu
12Fri3:454.05:025.110:090.711:451.55:588:19Third Quarter12Fri
13Sat5:163.55:495.311:001.35:598:18Third Quarter13Sat
14Sun6:523.36:345.512:590.911:52 AM1.85:598:18Waning Crescent14Sun
15Mon8:193.37:175.72:000.412:432.36:008:17Waning Crescent15Mon
16Tue9:243.57:575.82:490.01:332.66:018:17Waning Crescent16Tue
17Wed10:143.68:355.83:31-0.32:192.76:018:16Waning Crescent17Wed
18Thu10:553.79:115.84:09-0.42:592.86:028:16New Moon18Thu
19Fri11:313.79:455.84:44-0.53:362.86:038:15New Moon19Fri
20Sat12:043.75:17-0.54:132.76:038:15New Moon20Sat
21Sun12:363.85:50-0.54:512.76:048:14New Moon21Sun
22Mon1:073.86:21-0.35:322.76:058:13Waxing Crescent22Mon
23Tue1:393.96:52-0.26:172.76:068:13Waxing Crescent23Tue
24Wed12:065.12:124.07:220.17:062.66:068:12Waxing Crescent24Wed
25Thu12:454.72:464.17:510.48:042.66:078:11Waxing Crescent25Thu
26Fri1:314.23:224.38:220.89:182.46:088:11First Quarter26Fri
27Sat2:303.74:014.68:551.310:432.06:088:10First Quarter27Sat
28Sun3:563.24:434.99:351.76:098:09First Quarter28Sun
29Mon5:413.05:285.212:001.510:25 AM2.26:108:08First Quarter29Mon
30Tue7:223.16:175.71:040.811:24 AM2.56:118:07Waxing Gibbous30Tue
31Wed8:363.37:086.11:580.112:272.66:118:07Waxing Gibbous31Wed
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 12:25 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 transitional phase. Tonight's moon is 61% 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 shifting between spring and neap.

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 Third Quarter (61% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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