Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:01 pm (2.8 ft)
Next high tide : in 44m at 1:08 pm (3.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:303.68:556.93:45-1.42:302.55:528:21New Moon1Tue
2Wed11:183.89:456.94:32-1.73:272.55:538:21New Moon2Wed
3Thu12:033.95:19-1.84:242.45:538:21New Moon3Thu
4Fri12:484.16:05-1.65:232.35:538:21Waxing Crescent4Fri
5Sat1:314.36:48-1.36:242.25:548:21Waxing Crescent5Sat
6Sun12:185.82:144.47:30-0.87:282.25:558:20Waxing Crescent6Sun
7Mon1:105.12:594.68:09-0.28:382.15:558:20Waxing Crescent7Mon
8Tue2:084.33:444.78:480.510:001.95:568:20First Quarter8Tue
9Wed3:183.64:294.99:281.111:241.65:568:20First Quarter9Wed
10Thu4:503.15:135.010:091.85:578:19First Quarter10Thu
11Fri6:382.95:575.212:391.110:55 AM2.35:578:19First Quarter11Fri
12Sat8:223.06:405.31:400.711:45 AM2.75:588:19Waxing Gibbous12Sat
13Sun9:283.27:225.42:290.312:402.95:598:18Waxing Gibbous13Sun
14Mon10:093.48:035.63:090.01:333.05:598:18Waxing Gibbous14Mon
15Tue10:413.58:415.73:45-0.32:192.96:008:17Waxing Gibbous15Tue
16Wed11:103.69:185.84:19-0.53:002.96:018:17Full Moon16Wed
17Thu11:383.69:535.84:51-0.63:392.76:018:16Full Moon17Thu
18Fri12:063.75:23-0.64:192.66:028:16Full Moon18Fri
19Sat12:343.85:54-0.65:022.66:038:15Full Moon19Sat
20Sun1:034.06:24-0.55:492.56:038:15Waning Gibbous20Sun
21Mon1:324.26:53-0.26:412.36:048:14Waning Gibbous21Mon
22Tue12:254.92:034.57:220.27:402.26:058:13Waning Gibbous22Tue
23Wed1:154.32:374.77:510.78:511.96:058:13Waning Gibbous23Wed
24Thu2:183.73:175.18:221.210:171.56:068:12Third Quarter24Thu
25Fri3:493.14:055.49:001.811:411.06:078:11Third Quarter25Fri
26Sat5:472.94:595.79:502.36:088:10Third Quarter26Sat
27Sun7:393.05:586.012:540.311:01 AM2.76:088:10Waning Crescent27Sun
28Mon8:513.36:586.31:55-0.412:182.86:098:09Waning Crescent28Mon
29Tue9:373.67:566.62:47-0.91:302.76:108:08Waning Crescent29Tue
30Wed10:163.98:506.73:33-1.22:332.56:118:07New Moon30Wed
31Thu10:524.19:406.74:17-1.33:292.26:118:06New Moon31Thu
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 3:04 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 97% 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 Full Moon (97% 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