Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 6:39 pm (2.8 ft)
Next high tide : in 6m at 2:14 pm (3.8 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:00 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:323.97:314.712:581.712:540.59:1710:55Waxing Gibbous1Tue
2Wed7:394.08:045.21:500.91:360.79:1610:56Waxing Gibbous2Wed
3Thu8:404.18:395.72:390.22:170.99:1510:57Waxing Gibbous3Thu
4Fri9:364.19:166.13:26-0.52:581.19:1410:58Full Moon4Fri
5Sat10:314.19:556.44:14-1.13:401.49:1310:59Full Moon5Sat
6Sun11:284.110:386.55:04-1.44:251.79:1210:59Full Moon6Sun
7Mon12:264.05:55-1.65:131.99:1111:00Full Moon7Mon
8Tue1:273.96:48-1.56:082.29:1111:01Waning Gibbous8Tue
9Wed12:166.02:303.87:42-1.37:102.49:1011:02Waning Gibbous9Wed
10Thu1:115.53:383.98:38-0.98:242.59:0911:03Waning Gibbous10Thu
11Fri2:144.94:434.19:39-0.59:582.49:0811:03Third Quarter11Fri
12Sat3:294.35:394.310:39-0.111:292.19:0711:04Third Quarter12Sat
13Sun4:523.96:264.511:350.39:0611:05Third Quarter13Sun
14Mon6:113.77:074.812:431.612:250.79:0611:06Third Quarter14Mon
15Tue7:233.57:415.01:421.11:091.09:0511:07Waning Crescent15Tue
16Wed8:253.58:125.12:300.71:471.49:0411:07Waning Crescent16Wed
17Thu9:173.58:395.33:090.32:211.79:0311:08Waning Crescent17Thu
18Fri10:023.59:065.43:450.02:521.99:0311:09Waning Crescent18Fri
19Sat10:443.59:345.54:19-0.23:212.19:0211:10New Moon19Sat
20Sun11:263.510:025.54:52-0.43:522.39:0111:10New Moon20Sun
21Mon12:083.55:27-0.54:242.49:0111:11New Moon21Mon
22Tue12:513.56:03-0.54:592.69:0011:12New Moon22Tue
23Wed1:363.56:41-0.55:392.79:0011:13Waxing Crescent23Wed
24Thu2:243.57:19-0.46:262.88:5911:13Waxing Crescent24Thu
25Fri12:214.93:153.58:00-0.27:232.88:5911:14Waxing Crescent25Fri
26Sat1:074.64:043.78:430.08:382.88:5811:15Waxing Crescent26Sat
27Sun2:034.24:484.09:300.210:112.68:5811:15First Quarter27Sun
28Mon3:173.85:274.310:190.511:332.08:5711:16First Quarter28Mon
29Tue4:453.56:044.811:090.88:5711:17First Quarter29Tue
30Wed6:103.46:425.312:401.311:57 AM1.18:5711:17Waxing Gibbous30Wed
31Thu7:293.57:235.81:370.512:451.38:5611:18Waxing Gibbous31Thu
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 4:26 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 88% 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 Waning Gibbous (88% 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