Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 12:06 pm (2.5 ft)
Next high tide : in 3h 41m at 8:29 am (3.1 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 9:04 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:545.78:284.212:481.82:01-0.99:389:05Waxing Gibbous1Sat
2Sun7:475.89:044.51:441.42:42-1.09:369:06Waxing Gibbous2Sun
3Mon8:355.79:404.72:331.13:21-0.99:359:07Full Moon3Mon
4Tue9:215.610:154.83:210.83:58-0.69:349:08Full Moon4Tue
5Wed10:065.210:514.94:070.74:35-0.29:329:09Full Moon5Wed
6Thu10:534.811:264.94:540.65:090.29:319:10Waning Gibbous6Thu
7Fri11:404.35:420.65:430.89:309:11Waning Gibbous7Fri
8Sat12:024.812:313.86:310.76:161.39:289:11Waning Gibbous8Sat
9Sun12:404.62:323.38:270.87:501.810:2710:12Waning Gibbous9Sun
10Mon2:234.43:573.09:360.98:332.210:2610:13Third Quarter10Mon
11Tue3:174.25:422.910:560.99:462.510:2410:14Third Quarter11Tue
12Wed4:254.17:123.112:090.810:2310:15Third Quarter12Wed
13Thu5:354.28:043.31:070.510:2110:16Third Quarter13Thu
14Fri6:364.38:363.512:392.51:530.310:2010:17Waning Crescent14Fri
15Sat7:284.59:023.71:332.22:300.110:1910:17Waning Crescent15Sat
16Sun8:124.79:264.02:151.93:020.010:1710:18Waning Crescent16Sun
17Mon8:514.89:514.22:521.63:32-0.110:1610:19Waning Crescent17Mon
18Tue9:294.910:174.43:281.34:02-0.110:1410:20New Moon18Tue
19Wed10:074.910:444.74:060.94:320.010:1310:21New Moon19Wed
20Thu10:484.811:144.94:460.65:030.210:1210:21New Moon20Thu
21Fri11:334.611:475.15:290.45:360.510:1010:22New Moon21Fri
22Sat12:234.26:160.26:110.910:0910:23Waxing Crescent22Sat
23Sun12:245.11:193.87:080.16:491.310:0710:24Waxing Crescent23Sun
24Mon1:065.22:283.58:070.17:341.810:0610:25Waxing Crescent24Mon
25Tue1:555.13:563.39:170.18:332.210:0510:26First Quarter25Tue
26Wed2:584.95:303.310:370.010:022.410:0310:26First Quarter26Wed
27Thu4:154.86:453.611:51-0.211:362.310:0210:27First Quarter27Thu
28Fri5:334.87:403.912:54-0.310:0010:28First Quarter28Fri
29Sat6:454.98:234.312:532.01:47-0.59:5910:29Waxing Gibbous29Sat
30Sun7:475.08:594.61:541.52:33-0.59:5810:30Waxing Gibbous30Sun
31Mon8:425.09:334.82:461.03:13-0.39:5610:30Waxing Gibbous31Mon
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 10:17 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 20% 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 Crescent (20% 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