Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 6h 20m at 12:51 am (0.7 ft)
Next high tide (tomorrow) : 6:59 am (2.9 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:222.96:065.412:431.311:09 AM1.95:528:21Third Quarter1Sat
2Sun7:573.06:485.91:400.511:58 AM2.35:538:21Waning Crescent2Sun
3Mon9:093.27:346.32:30-0.312:522.55:538:21Waning Crescent3Mon
4Tue10:043.48:236.73:18-0.91:502.65:548:21Waning Crescent4Tue
5Wed10:533.69:126.94:05-1.42:482.65:548:21New Moon5Wed
6Thu11:403.810:037.04:52-1.73:442.65:558:20New Moon6Thu
7Fri12:253.95:39-1.84:432.55:558:20New Moon7Fri
8Sat1:094.16:24-1.75:452.35:568:20Waxing Crescent8Sat
9Sun1:524.37:09-1.36:502.25:568:20Waxing Crescent9Sun
10Mon12:425.72:374.67:51-0.87:592.15:578:19Waxing Crescent10Mon
11Tue1:405.03:244.88:33-0.19:191.95:588:19First Quarter11Tue
12Wed2:474.24:115.09:160.610:461.65:588:19First Quarter12Wed
13Thu4:123.54:585.210:001.35:598:18First Quarter13Thu
14Fri5:533.15:445.412:081.110:48 AM2.05:598:18First Quarter14Fri
15Sat7:433.06:305.51:180.611:39 AM2.56:008:17Waxing Gibbous15Sat
16Sun9:073.27:155.62:140.212:352.86:018:17Waxing Gibbous16Sun
17Mon10:013.47:575.63:00-0.11:303.06:018:16Waxing Gibbous17Mon
18Tue10:393.58:375.73:39-0.42:183.06:028:16Waxing Gibbous18Tue
19Wed11:103.69:145.84:15-0.52:592.96:038:15Full Moon19Wed
20Thu11:393.69:495.84:49-0.53:362.86:038:15Full Moon20Thu
21Fri12:063.75:21-0.54:132.76:048:14Full Moon21Fri
22Sat12:333.85:51-0.54:522.66:058:13Full Moon22Sat
23Sun1:013.96:20-0.45:352.66:068:13Waning Gibbous23Sun
24Mon1:284.06:48-0.16:212.56:068:12Waning Gibbous24Mon
25Tue12:095.01:574.27:150.27:132.46:078:11Waning Gibbous25Tue
26Wed12:504.52:264.47:410.68:142.36:088:11Waning Gibbous26Wed
27Thu1:403.93:004.68:071.19:312.06:098:10Third Quarter27Thu
28Fri2:503.33:394.98:361.610:581.66:098:09Third Quarter28Fri
29Sat4:372.94:265.39:132.16:108:08Third Quarter29Sat
30Sun6:432.95:205.612:160.910:07 AM2.66:118:07Third Quarter30Sun
31Mon8:223.16:186.01:210.211:22 AM2.86:118:07Waning Crescent31Mon
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 3:55 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 transitional phase. Tonight's moon is 39% 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 shifting between spring and neap.

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 Third Quarter (39% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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