Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 5h 51m at 6:46 am (-0.6 ft)
Next high tide : 1:41 pm (3.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:003.76:081.15:481.36:315:58Waning Gibbous1Wed
2Thu12:154.412:503.26:571.16:131.76:305:59Waning Gibbous2Thu
3Fri12:504.42:002.97:591.16:432.06:296:00Third Quarter3Fri
4Sat1:354.33:462.79:191.17:262.46:286:01Third Quarter4Sat
5Sun2:374.35:322.810:370.88:572.66:266:02Third Quarter5Sun
6Mon3:494.46:363.111:390.410:362.56:256:02Third Quarter6Mon
7Tue4:574.77:143.412:300.06:246:03Waning Crescent7Tue
8Wed5:585.07:443.71:13-0.36:226:04Waning Crescent8Wed
9Thu6:525.38:154.112:471.91:51-0.66:216:05Waning Crescent9Thu
10Fri7:435.58:464.51:381.42:29-0.76:196:06Waning Crescent10Fri
11Sat8:315.69:204.92:260.93:06-0.66:186:07New Moon11Sat
12Sun10:205.510:565.34:150.44:44-0.47:177:08New Moon12Sun
13Mon11:115.211:355.55:060.05:23-0.17:157:08New Moon13Mon
14Tue12:064.85:59-0.26:030.47:147:09Waxing Crescent14Tue
15Wed12:175.61:054.36:55-0.36:450.97:137:10Waxing Crescent15Wed
16Thu1:025.52:123.87:56-0.27:321.57:117:11Waxing Crescent16Thu
17Fri1:535.33:353.49:06-0.18:292.07:107:12First Quarter17Fri
18Sat2:535.05:113.310:250.09:502.37:087:13First Quarter18Sat
19Sun4:064.86:363.511:430.011:242.47:077:13First Quarter19Sun
20Mon5:244.67:383.712:49-0.17:067:14First Quarter20Mon
21Tue6:354.68:234.012:442.11:44-0.17:047:15Waxing Gibbous21Tue
22Wed7:354.68:564.11:451.82:28-0.17:037:16Waxing Gibbous22Wed
23Thu8:244.79:254.32:321.53:030.07:017:17Waxing Gibbous23Thu
24Fri9:064.69:494.43:111.23:340.27:007:18Waxing Gibbous24Fri
25Sat9:434.510:134.63:460.94:010.46:587:18Full Moon25Sat
26Sun10:194.410:364.74:200.74:260.76:577:19Full Moon26Sun
27Mon10:554.211:014.74:540.54:500.96:567:20Full Moon27Mon
28Tue11:334.011:264.85:290.45:151.26:547:21Full Moon28Tue
29Wed12:133.86:060.45:411.56:537:22Waning Gibbous29Wed
30Thu12:583.56:460.46:081.86:517:22Waning Gibbous30Thu
31Fri12:234.71:513.27:300.46:372.16:507:23Waning Gibbous31Fri
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 10:13 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 93% 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 (93% 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