Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 14m at 5:09 pm (2.2 ft)
Next high tide : 11:13 pm (6.5 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:07 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:014.91:163.37:020.36:081.99:5510:31Waning Gibbous1Tue
2Wed12:304.92:253.07:540.26:302.39:5410:32Waning Gibbous2Wed
3Thu1:064.94:152.88:590.26:542.79:5310:32Waning Gibbous3Thu
4Fri1:544.810:190.19:5110:33Third Quarter4Fri
5Sat3:064.77:293.311:34-0.210:273.19:5010:34Third Quarter5Sat
6Sun4:384.77:563.612:37-0.59:4810:35Third Quarter6Sun
7Mon6:004.98:223.912:122.81:29-0.79:4710:36Waning Crescent7Mon
8Tue7:105.18:494.31:212.22:14-0.89:4610:36Waning Crescent8Tue
9Wed8:115.29:184.82:171.52:54-0.79:4410:37Waning Crescent9Wed
10Thu9:065.29:485.23:080.83:31-0.59:4310:38Waning Crescent10Thu
11Fri9:595.010:205.53:570.24:070.09:4210:39New Moon11Fri
12Sat10:534.710:535.74:46-0.34:420.59:4010:40New Moon12Sat
13Sun11:494.311:285.85:36-0.65:181.19:3910:40New Moon13Sun
14Mon12:493.96:27-0.75:541.79:3810:41Waxing Crescent14Mon
15Tue12:055.71:563.57:20-0.66:312.29:3710:42Waxing Crescent15Tue
16Wed12:445.43:213.38:18-0.47:142.79:3510:43Waxing Crescent16Wed
17Thu1:285.05:063.39:24-0.28:143.09:3410:44Waxing Crescent17Thu
18Fri2:234.56:333.510:390.010:153.29:3310:44First Quarter18Fri
19Sat3:424.27:263.711:480.19:3210:45First Quarter19Sat
20Sun5:094.07:593.812:002.912:450.19:3010:46First Quarter20Sun
21Mon6:214.08:234.01:062.51:300.29:2910:47First Quarter21Mon
22Tue7:204.08:444.21:522.12:060.39:2810:48Waxing Gibbous22Tue
23Wed8:094.19:034.42:301.62:350.49:2710:49Waxing Gibbous23Wed
24Thu8:524.19:224.63:041.23:010.69:2610:49Waxing Gibbous24Thu
25Fri9:324.09:414.93:370.83:250.99:2410:50Waxing Gibbous25Fri
26Sat10:134.010:025.14:110.43:481.29:2310:51Full Moon26Sat
27Sun10:563.810:255.34:470.04:121.59:2210:52Full Moon27Sun
28Mon11:433.610:515.45:25-0.24:371.99:2110:53Full Moon28Mon
29Tue12:363.56:07-0.45:042.29:2010:53Full Moon29Tue
30Wed1:373.36:52-0.55:332.59:1910:54Waning Gibbous30Wed
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 8:11 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 2% 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 (2% 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