Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:00 am (0.0 ft)
Next high tide : in 6h 26m at 7:11 pm (5.4 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 - Aug 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:153.99:566.04:40-0.63:512.49:1911:12New Moon1Sat
2Sun11:424.110:355.95:11-0.64:342.29:2011:11New Moon2Sun
3Mon12:104.35:41-0.45:212.09:2111:10New Moon3Mon
4Tue12:404.66:11-0.26:131.89:2211:09Waxing Crescent4Tue
5Wed12:025.11:124.96:410.27:091.69:2211:08Waxing Crescent5Wed
6Thu12:544.61:485.17:120.88:141.49:2311:07Waxing Crescent6Thu
7Fri1:563.92:305.37:451.49:321.29:2411:06First Quarter7Fri
8Sat3:203.33:215.58:221.910:590.89:2511:05First Quarter8Sat
9Sun5:133.14:235.79:132.59:2511:04First Quarter9Sun
10Mon7:073.25:305.912:170.310:33 AM2.89:2611:03First Quarter10Mon
11Tue8:223.56:366.11:24-0.212:022.99:2711:02Waxing Gibbous11Tue
12Wed9:083.87:376.22:19-0.61:182.79:2811:01Waxing Gibbous12Wed
13Thu9:444.08:316.33:05-0.82:202.49:2911:00Waxing Gibbous13Thu
14Fri10:174.29:206.33:47-0.93:122.19:2910:59Full Moon14Fri
15Sat10:494.410:056.14:25-0.84:001.89:3010:57Full Moon15Sat
16Sun11:204.610:485.75:00-0.54:471.69:3110:56Full Moon16Sun
17Mon11:524.811:315.35:33-0.15:341.59:3210:55Full Moon17Mon
18Tue12:224.96:040.46:211.49:3210:54Waning Gibbous18Tue
19Wed12:164.812:534.96:320.97:091.49:3310:53Waning Gibbous19Wed
20Thu1:034.21:244.96:591.58:031.49:3410:51Waning Gibbous20Thu
21Fri1:583.71:584.97:242.09:081.59:3510:50Waning Gibbous21Fri
22Sat3:163.22:394.87:472.510:321.49:3510:49Third Quarter22Sat
23Sun5:213.03:354.78:122.911:541.29:3610:48Third Quarter23Sun
24Mon4:444.89:3710:46Third Quarter24Mon
25Tue8:363.45:514.912:590.911:25 AM3.39:3810:45Third Quarter25Tue
26Wed8:573.66:485.11:490.512:403.19:3810:44Waning Crescent26Wed
27Thu9:173.87:385.42:270.21:342.89:3910:42Waning Crescent27Thu
28Fri9:374.08:215.63:000.02:182.59:4010:41Waning Crescent28Fri
29Sat9:584.29:025.83:30-0.12:592.29:4010:40Waning Crescent29Sat
30Sun10:214.59:425.83:59-0.23:411.89:4110:38New Moon30Sun
31Mon10:464.810:255.64:28-0.14:251.49:4210:37New Moon31Mon
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 11:05 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 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