Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 02m at 5:05 am (-1.7 ft)
Next high tide : 11:46 am (4.0 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:06 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:363.53:125.38:262.310:470.79:4210:37First Quarter1Fri
2Sat5:163.44:235.49:412.69:4310:36First Quarter2Sat
3Sun6:413.65:355.512:010.411:12 AM2.79:4310:34First Quarter3Sun
4Mon7:423.96:435.71:030.112:302.59:4410:33Waxing Gibbous4Mon
5Tue8:274.37:435.91:56-0.21:362.19:4510:31Waxing Gibbous5Tue
6Wed9:064.68:376.02:42-0.32:311.79:4510:30Waxing Gibbous6Wed
7Thu9:414.99:265.93:24-0.33:211.39:4610:29Full Moon7Thu
8Fri10:165.210:135.74:02-0.24:091.09:4710:27Full Moon8Fri
9Sat10:515.310:595.44:390.14:550.89:4810:26Full Moon9Sat
10Sun11:265.411:475.05:150.55:420.89:4810:24Full Moon10Sun
11Mon12:015.45:501.06:290.89:4910:23Waning Gibbous11Mon
12Tue12:364.612:375.36:251.57:190.99:5010:21Waning Gibbous12Tue
13Wed1:304.11:145.16:592.08:131.09:5110:20Waning Gibbous13Wed
14Thu2:343.71:574.97:372.49:181.29:5110:19Waning Gibbous14Thu
15Fri4:003.52:504.78:242.810:361.29:5210:17Third Quarter15Fri
16Sat5:373.54:004.59:423.011:481.19:5310:16Third Quarter16Sat
17Sun6:533.65:134.511:163.19:5410:14Third Quarter17Sun
18Mon7:413.86:164.712:461.012:272.99:5410:13Third Quarter18Mon
19Tue8:144.07:104.81:320.81:192.69:5510:11Waning Crescent19Tue
20Wed8:404.37:565.02:090.72:022.29:5610:10Waning Crescent20Wed
21Thu9:054.58:375.12:410.62:401.89:5610:08Waning Crescent21Thu
22Fri9:294.89:175.23:110.63:171.59:5710:07Waning Crescent22Fri
23Sat9:545.09:565.23:390.73:551.19:5810:05New Moon23Sat
24Sun10:215.310:395.04:090.84:350.89:5910:04New Moon24Sun
25Mon10:515.511:254.84:401.05:190.59:5910:03New Moon25Mon
26Tue11:245.75:131.36:060.410:0010:01Waxing Crescent26Tue
27Wed12:164.512:025.75:481.76:580.310:0110:00Waxing Crescent27Wed
28Thu1:154.212:455.76:282.17:570.310:029:58Waxing Crescent28Thu
29Fri2:243.91:365.67:152.59:050.310:029:57Waxing Crescent29Fri
30Sat3:503.82:415.48:182.810:210.310:039:55First Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 8:25 am — 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 0% 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 (0% 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