Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 4h 12m at 3:00 am (0.0 ft)
Next high tide (tomorrow) : 10:04 am (3.5 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 9:13 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:174.16:003.510:220.410:232.99:1710:55First Quarter1Sat
2Sun3:343.86:333.711:150.511:482.69:1610:56First Quarter2Sun
3Mon4:573.77:004.012:000.69:1510:57First Quarter3Mon
4Tue6:113.67:244.412:492.012:400.79:1410:58Waxing Gibbous4Tue
5Wed7:183.77:504.91:391.41:170.99:1310:59Waxing Gibbous5Wed
6Thu8:183.88:195.32:240.71:531.19:1210:59Waxing Gibbous6Thu
7Fri9:133.88:505.83:070.02:291.49:1211:00Waxing Gibbous7Fri
8Sat10:073.99:256.13:51-0.73:071.69:1111:01Full Moon8Sat
9Sun11:023.810:046.44:37-1.23:471.99:1011:02Full Moon9Sun
10Mon11:593.810:476.45:25-1.54:312.19:0911:03Full Moon10Mon
11Tue12:583.76:16-1.65:202.39:0811:03Waning Gibbous11Tue
12Wed1:593.77:09-1.56:182.59:0711:04Waning Gibbous12Wed
13Thu12:285.93:043.78:04-1.37:262.69:0611:05Waning Gibbous13Thu
14Fri1:275.44:093.99:03-0.98:512.69:0611:06Waning Gibbous14Fri
15Sat2:364.85:074.210:02-0.510:312.49:0511:07Third Quarter15Sat
16Sun3:584.35:564.511:00-0.111:571.99:0411:07Third Quarter16Sun
17Mon5:233.96:394.811:520.39:0311:08Third Quarter17Mon
18Tue6:433.67:185.11:081.212:400.89:0311:09Waning Crescent18Tue
19Wed7:563.57:525.42:050.71:231.29:0211:10Waning Crescent19Wed
20Thu8:583.58:245.52:520.22:011.69:0211:10Waning Crescent20Thu
21Fri9:513.58:545.63:33-0.22:361.99:0111:11Waning Crescent21Fri
22Sat10:403.59:235.74:11-0.53:092.29:0011:12New Moon22Sat
23Sun11:253.59:525.64:47-0.63:402.49:0011:13New Moon23Sun
24Mon12:103.55:23-0.64:132.68:5911:13New Moon24Mon
25Tue12:533.46:00-0.64:472.78:5911:14New Moon25Tue
26Wed1:383.46:37-0.55:262.88:5811:15Waxing Crescent26Wed
27Thu2:243.47:14-0.46:112.98:5811:15Waxing Crescent27Thu
28Fri12:105.03:143.57:53-0.27:052.98:5711:16Waxing Crescent28Fri
29Sat12:524.64:023.68:340.08:132.98:5711:17Waxing Crescent29Sat
30Sun1:404.24:433.89:160.39:432.88:5711:17First Quarter30Sun
31Mon2:423.85:184.110:000.611:112.48:5611:18First Quarter31Mon
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 6:32 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 79% 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 Waxing Gibbous (79% 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