Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 13, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 2:26 pm (2.4 ft)
Next high tide : in 3h 58m at 10:18 am (3.5 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:474.75:573.810:39-0.310:462.76:107:49First Quarter1Mon
2Tue4:144.46:354.211:35-0.26:097:50First Quarter2Tue
3Wed5:384.27:094.712:092.012:240.06:087:50First Quarter3Wed
4Thu6:554.17:435.21:161.31:090.36:077:51Waxing Gibbous4Thu
5Fri8:054.08:185.62:120.51:520.76:067:52Waxing Gibbous5Fri
6Sat9:084.08:536.03:03-0.32:321.16:057:53Waxing Gibbous6Sat
7Sun10:053.99:286.23:51-0.83:111.56:047:54Full Moon7Sun
8Mon11:023.810:056.34:38-1.23:501.86:047:55Full Moon8Mon
9Tue11:593.710:446.15:25-1.34:312.26:037:55Full Moon9Tue
10Wed12:563.66:12-1.25:142.46:027:56Waning Gibbous10Wed
11Thu1:543.67:00-1.06:012.76:017:57Waning Gibbous11Thu
12Fri12:095.42:573.57:49-0.76:552.86:007:58Waning Gibbous12Fri
13Sat12:555.04:023.58:40-0.48:002.95:597:59Waning Gibbous13Sat
14Sun1:474.55:003.69:340.09:322.95:597:59Third Quarter14Sun
15Mon2:514.05:463.810:270.311:102.75:588:00Third Quarter15Mon
16Tue4:103.66:224.011:160.65:578:01Third Quarter16Tue
17Wed5:303.46:524.312:242.211:58 AM0.95:568:02Third Quarter17Wed
18Thu6:433.37:184.61:201.712:361.25:568:02Waning Crescent18Thu
19Fri7:493.37:444.92:041.21:101.55:558:03Waning Crescent19Fri
20Sat8:453.38:095.22:430.61:431.75:548:04Waning Crescent20Sat
21Sun9:353.48:375.53:180.12:152.05:548:05Waning Crescent21Sun
22Mon10:223.49:075.73:54-0.32:482.25:538:05New Moon22Mon
23Tue11:103.59:395.94:32-0.63:222.45:538:06New Moon23Tue
24Wed11:583.510:156.05:12-0.93:592.55:528:07New Moon24Wed
25Thu12:483.55:54-1.14:402.65:528:08New Moon25Thu
26Fri1:393.56:39-1.25:292.75:518:08Waxing Crescent26Fri
27Sat2:313.67:25-1.16:282.85:518:09Waxing Crescent27Sat
28Sun12:315.53:253.78:12-0.97:402.85:508:10Waxing Crescent28Sun
29Mon1:285.14:154.09:02-0.69:082.65:508:10First Quarter29Mon
30Tue2:364.55:004.49:54-0.210:432.25:508:11First Quarter30Tue
31Wed3:594.05:424.810:450.25:498:11First Quarter31Wed
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 12:22 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 3% 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 New Moon (3% 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