Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:56 am (-0.4 ft)
Next high tide : in 2h 00m at 8:16 pm (5.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:445.310:435.84:30-0.34:380.89:4210:37Full Moon1Mon
2Tue11:215.511:345.45:080.15:300.79:4310:35Full Moon2Tue
3Wed11:595.65:460.66:220.69:4410:34Waning Gibbous3Wed
4Thu12:274.912:385.66:241.17:170.79:4410:32Waning Gibbous4Thu
5Fri1:244.31:205.47:021.78:160.89:4510:31Waning Gibbous5Fri
6Sat2:313.82:065.27:422.29:261.09:4610:30Waning Gibbous6Sat
7Sun3:593.53:025.08:322.710:461.09:4610:28Third Quarter7Sun
8Mon5:393.54:114.89:483.011:590.99:4710:27Third Quarter8Mon
9Tue7:023.65:234.811:203.09:4810:25Third Quarter9Tue
10Wed7:553.86:264.81:000.812:322.99:4910:24Third Quarter10Wed
11Thu8:294.07:195.01:470.71:262.69:4910:22Waning Crescent11Thu
12Fri8:554.28:045.12:240.62:082.39:5010:21Waning Crescent12Fri
13Sat9:194.48:435.22:560.52:452.09:5110:20Waning Crescent13Sat
14Sun9:414.69:205.23:230.63:201.79:5210:18Waning Crescent14Sun
15Mon10:044.89:565.13:490.73:561.49:5210:17New Moon15Mon
16Tue10:285.010:345.04:150.84:331.19:5310:15New Moon16Tue
17Wed10:535.211:154.74:421.05:120.99:5410:14New Moon17Wed
18Thu11:215.35:091.35:550.89:5410:12New Moon18Thu
19Fri12:004.511:53 AM5.45:391.76:420.79:5510:11Waxing Crescent19Fri
20Sat12:524.112:295.56:112.07:360.69:5610:09Waxing Crescent20Sat
21Sun1:543.81:125.46:472.48:390.69:5710:08Waxing Crescent21Sun
22Mon3:153.52:075.37:332.79:550.69:5710:07First Quarter22Mon
23Tue4:513.53:205.28:463.011:100.49:5810:05First Quarter23Tue
24Wed6:093.84:435.210:323.09:5910:04First Quarter24Wed
25Thu7:044.15:595.312:150.212:012.710:0010:02First Quarter25Thu
26Fri7:474.57:075.41:100.01:102.110:0010:01Waxing Gibbous26Fri
27Sat8:234.98:075.51:570.02:071.610:019:59Waxing Gibbous27Sat
28Sun8:585.39:005.52:390.12:581.010:029:58Waxing Gibbous28Sun
29Mon9:315.69:515.43:180.33:450.510:039:56Full Moon29Mon
30Tue10:055.810:405.13:550.64:320.210:039:55Full Moon30Tue
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 12:06 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 90% 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 Waxing Gibbous (90% 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