Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 20m at 3:14 pm (2.5 ft)
Next high tide : 9:32 pm (6.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:58 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:455.67:543.61:17-0.57:015:32Waxing Gibbous1Fri
2Sat6:415.88:373.812:262.22:04-0.87:005:33Waxing Gibbous2Sat
3Sun7:315.89:134.01:232.02:44-0.96:595:34Waxing Gibbous3Sun
4Mon8:145.89:474.12:111.93:21-0.96:585:35Full Moon4Mon
5Tue8:555.710:194.22:551.73:54-0.76:575:36Full Moon5Tue
6Wed9:335.410:494.33:361.64:26-0.56:565:37Full Moon6Wed
7Thu10:105.111:194.34:171.54:55-0.26:565:38Full Moon7Thu
8Fri10:474.711:494.44:581.55:230.26:555:39Waning Gibbous8Fri
9Sat11:264.35:401.55:490.66:545:40Waning Gibbous9Sat
10Sun12:204.412:093.86:271.56:151.16:535:41Waning Gibbous10Sun
11Mon12:534.412:593.37:211.56:401.56:525:42Waning Gibbous11Mon
12Tue1:314.42:102.88:331.57:091.96:515:43Third Quarter12Tue
13Wed2:194.44:032.69:591.37:502.36:505:44Third Quarter13Wed
14Thu3:194.46:002.711:151.09:122.56:485:45Third Quarter14Thu
15Fri4:214.67:083.012:130.56:475:46Third Quarter15Fri
16Sat5:204.87:433.212:590.16:465:47Waning Crescent16Sat
17Sun6:135.18:123.51:37-0.36:455:48Waning Crescent17Sun
18Mon7:015.48:393.812:482.22:12-0.66:445:48Waning Crescent18Mon
19Tue7:465.69:084.11:371.82:47-0.86:435:49Waning Crescent19Tue
20Wed8:305.89:404.42:241.43:22-0.96:425:50New Moon20Wed
21Thu9:155.710:144.83:111.13:58-0.86:415:51New Moon21Thu
22Fri10:035.510:505.14:000.74:34-0.56:395:52New Moon22Fri
23Sat10:545.011:305.34:530.55:120.06:385:53Waxing Crescent23Sat
24Sun11:504.55:490.35:510.56:375:54Waxing Crescent24Sun
25Mon12:135.412:533.96:510.36:331.16:365:55Waxing Crescent25Mon
26Tue1:015.32:133.48:030.37:231.66:345:56First Quarter26Tue
27Wed1:595.23:543.19:270.28:312.16:335:57First Quarter27Wed
28Thu3:085.15:323.210:480.110:012.36:325:58First Quarter28Thu
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 6:23 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 1% 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 (1% 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