Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 7:17 am (-0.4 ft)
Next high tide : in 2h 41m at 11:45 pm (5.3 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:203.26:125.312:560.811:33 AM2.59:1911:12Third Quarter1Wed
2Thu8:433.47:005.41:560.412:342.89:2011:11Waning Crescent2Thu
3Fri9:363.67:455.52:430.11:312.99:2111:10Waning Crescent3Fri
4Sat10:133.78:265.63:23-0.12:182.99:2211:09Waning Crescent4Sat
5Sun10:443.89:035.73:58-0.22:572.89:2211:08Waning Crescent5Sun
6Mon11:123.89:385.84:30-0.33:332.79:2311:07New Moon6Mon
7Tue11:393.910:125.75:01-0.34:092.69:2411:06New Moon7Tue
8Wed12:063.95:31-0.34:462.49:2511:05New Moon8Wed
9Thu12:334.05:59-0.15:262.49:2511:04New Moon9Thu
10Fri1:014.26:270.16:092.39:2611:03Waxing Crescent10Fri
11Sat1:294.36:540.46:582.29:2711:02Waxing Crescent11Sat
12Sun12:414.61:594.57:210.87:542.19:2811:01Waxing Crescent12Sun
13Mon1:304.12:334.77:481.39:041.99:2811:00Waxing Crescent13Mon
14Tue2:373.63:144.98:191.810:281.59:2910:58First Quarter14Tue
15Wed4:163.24:065.18:582.311:491.09:3010:57First Quarter15Wed
16Thu6:133.15:045.49:592.79:3110:56First Quarter16Thu
17Fri7:513.36:065.812:570.411:20 AM2.99:3210:55Waxing Gibbous17Fri
18Sat8:473.67:076.21:55-0.212:382.99:3210:54Waxing Gibbous18Sat
19Sun9:283.98:046.52:45-0.81:452.79:3310:52Waxing Gibbous19Sun
20Mon10:054.18:586.73:30-1.12:442.39:3410:51Waxing Gibbous20Mon
21Tue10:414.49:486.74:13-1.23:382.09:3510:50Full Moon21Tue
22Wed11:184.610:386.54:55-1.14:311.79:3510:49Full Moon22Wed
23Thu11:554.811:296.05:35-0.85:261.49:3610:47Full Moon23Thu
24Fri12:335.06:13-0.36:211.39:3710:46Waning Gibbous24Fri
25Sat12:215.41:125.16:510.37:201.29:3810:45Waning Gibbous25Sat
26Sun1:174.71:525.27:271.08:241.29:3810:44Waning Gibbous26Sun
27Mon2:234.02:355.18:041.79:401.29:3910:42Third Quarter27Mon
28Tue3:513.53:265.08:462.311:041.19:4010:41Third Quarter28Tue
29Wed5:453.34:265.09:462.99:4010:39Third Quarter29Wed
30Thu7:363.55:304.912:210.811:13 AM3.29:4110:38Third Quarter30Thu
31Fri8:383.76:315.01:240.612:333.29:4210:37Waning Crescent31Fri
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 3:31 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 94% 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 (94% 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