Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 33m at 8:52 pm (2.5 ft)
Next high tide (tomorrow) : 2:06 am (3.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:143.59:555.64:45-0.33:422.35:498:12New Moon1Fri
2Sat12:013.55:20-0.44:112.55:498:13New Moon2Sat
3Sun12:473.55:56-0.54:432.75:498:13New Moon3Sun
4Mon1:363.46:33-0.55:192.95:488:14Waxing Crescent4Mon
5Tue2:283.47:12-0.46:013.05:488:14Waxing Crescent5Tue
6Wed12:035.13:253.57:53-0.36:523.15:488:15Waxing Crescent6Wed
7Thu12:444.84:203.68:37-0.17:583.25:488:16Waxing Crescent7Thu
8Fri1:324.55:053.89:250.19:313.15:488:16First Quarter8Fri
9Sat2:354.15:404.110:140.311:042.75:488:16First Quarter9Sat
10Sun3:563.86:114.411:010.55:488:17First Quarter10Sun
11Mon5:213.66:414.912:152.111:46 AM0.75:488:17First Quarter11Mon
12Tue6:423.57:145.31:131.412:291.05:488:18Waxing Gibbous12Tue
13Wed7:563.67:495.82:050.61:131.35:488:18Waxing Gibbous13Wed
14Thu9:023.78:286.32:53-0.21:581.65:488:19Waxing Gibbous14Thu
15Fri10:013.89:086.63:41-0.92:441.95:488:19Full Moon15Fri
16Sat10:593.99:526.84:29-1.43:322.15:488:19Full Moon16Sat
17Sun11:573.910:386.85:19-1.74:232.35:488:20Full Moon17Sun
18Mon12:544.06:09-1.85:182.45:488:20Waning Gibbous18Mon
19Tue1:504.07:00-1.66:202.65:488:20Waning Gibbous19Tue
20Wed12:226.12:474.17:50-1.37:272.65:498:20Waning Gibbous20Wed
21Thu1:185.53:444.38:42-0.98:462.65:498:21Waning Gibbous21Thu
22Fri2:214.84:394.59:35-0.310:172.45:498:21Third Quarter22Fri
23Sat3:354.25:284.710:280.211:432.05:498:21Third Quarter23Sat
24Sun4:583.76:125.011:190.75:508:21Third Quarter24Sun
25Mon6:233.46:525.212:561.512:051.25:508:21Third Quarter25Mon
26Tue7:433.37:275.31:540.912:491.75:508:21Waning Crescent26Tue
27Wed8:503.37:595.52:410.51:292.15:518:21Waning Crescent27Wed
28Thu9:443.48:305.63:210.12:072.35:518:21Waning Crescent28Thu
29Fri10:313.59:005.73:57-0.22:422.55:518:21Waning Crescent29Fri
30Sat11:133.59:315.74:31-0.43:162.75:528:21New Moon30Sat
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 11:29 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 71% 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 Waning Gibbous (71% 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