Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 10:10 pm (2.2 ft)
Next high tide : in 5h 21m at 4:21 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:393.46:30-0.65:042.95:498:12Waxing Crescent1Wed
2Thu2:333.47:09-0.55:443.15:498:12Waxing Crescent2Thu
3Fri3:333.47:51-0.36:343.25:498:13Waxing Crescent3Fri
4Sat12:344.84:303.58:36-0.17:393.25:488:14Waxing Crescent4Sat
5Sun1:214.55:123.79:230.19:113.25:488:14First Quarter5Sun
6Mon2:194.15:443.910:100.310:512.95:488:15First Quarter6Mon
7Tue3:363.86:114.210:550.55:488:15First Quarter7Tue
8Wed5:013.56:374.612:052.411:36 AM0.75:488:16First Quarter8Wed
9Thu6:223.47:055.11:031.712:151.15:488:16Waxing Gibbous9Thu
10Fri7:383.47:355.61:540.912:551.45:488:17Waxing Gibbous10Fri
11Sat8:463.58:106.12:410.11:361.75:478:17Waxing Gibbous11Sat
12Sun9:483.68:486.53:26-0.72:202.05:478:18Waxing Gibbous12Sun
13Mon10:463.79:296.74:13-1.23:052.35:478:18Full Moon13Mon
14Tue11:443.710:156.85:02-1.63:532.55:488:18Full Moon14Tue
15Wed12:423.85:52-1.84:462.65:488:19Full Moon15Wed
16Thu1:383.96:43-1.85:472.75:488:19Waning Gibbous16Thu
17Fri2:344.07:35-1.66:552.75:488:19Waning Gibbous17Fri
18Sat12:535.83:304.18:26-1.28:112.75:488:20Waning Gibbous18Sat
19Sun1:555.24:244.49:19-0.79:422.55:488:20Third Quarter19Sun
20Mon3:074.55:134.710:11-0.111:142.15:488:20Third Quarter20Mon
21Tue4:293.95:575.011:020.55:498:20Third Quarter21Tue
22Wed5:563.56:375.212:321.511:49 AM1.05:498:21Third Quarter22Wed
23Thu7:223.37:135.41:370.912:321.65:498:21Waning Crescent23Thu
24Fri8:383.37:475.62:290.41:142.05:498:21Waning Crescent24Fri
25Sat9:403.38:195.73:130.01:532.45:508:21Waning Crescent25Sat
26Sun10:313.48:515.83:51-0.32:302.65:508:21Waning Crescent26Sun
27Mon11:173.59:225.84:27-0.53:052.85:508:21New Moon27Mon
28Tue11:593.59:545.75:02-0.63:402.95:518:21New Moon28Tue
29Wed12:373.55:37-0.64:162.95:518:21New Moon29Wed
30Thu1:153.66:12-0.64:562.95:518:21New Moon30Thu
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 7:15 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 38% 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 First Quarter (38% 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