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 (tomorrow) : 2:43 am (-0.7 ft)
Next high tide : in 6h 08m at 6:55 pm (6.3 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 - Nov 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:243.712:084.86:073.38:040.69:318:15Waxing Crescent1Wed
2Thu3:523.812:594.57:153.59:090.79:328:14First Quarter2Thu
3Fri5:003.92:174.29:203.510:110.89:338:13First Quarter3Fri
4Sat5:434.13:464.010:543.211:040.89:348:12First Quarter4Sat
5Sun6:154.45:004.111:522.811:470.89:358:11First Quarter5Sun
6Mon6:404.66:004.112:352.39:368:10Waxing Gibbous6Mon
7Tue7:044.96:534.312:250.91:131.89:378:09Waxing Gibbous7Tue
8Wed7:275.27:414.312:591.01:491.29:388:08Waxing Gibbous8Wed
9Thu7:525.58:274.41:311.12:250.79:398:08Waxing Gibbous9Thu
10Fri8:185.89:134.42:021.43:030.29:408:07Full Moon10Fri
11Sat8:486.110:044.32:351.63:45-0.39:418:06Full Moon11Sat
12Sun9:216.310:584.23:101.94:30-0.69:428:05Full Moon12Sun
13Mon9:586.311:584.13:482.35:19-0.79:438:05Waning Gibbous13Mon
14Tue10:416.34:312.66:11-0.89:448:04Waning Gibbous14Tue
15Wed1:044.011:29 AM6.05:232.97:08-0.69:458:03Waning Gibbous15Wed
16Thu2:194.012:275.66:293.18:11-0.49:468:03Waning Gibbous16Thu
17Fri3:334.21:385.17:583.29:18-0.29:478:02Third Quarter17Fri
18Sat4:344.43:034.79:432.910:200.09:488:02Third Quarter18Sat
19Sun5:234.84:294.511:072.411:150.39:498:01Third Quarter19Sun
20Mon6:055.25:464.412:131.79:508:01Waning Crescent20Mon
21Tue6:435.56:544.312:050.61:081.09:508:00Waning Crescent21Tue
22Wed7:175.87:534.312:480.91:560.59:518:00Waning Crescent22Wed
23Thu7:496.08:454.21:271.32:380.09:527:59Waning Crescent23Thu
24Fri8:196.19:354.12:021.73:19-0.39:537:59New Moon24Fri
25Sat8:486.110:234.02:352.03:58-0.49:547:59New Moon25Sat
26Sun9:176.011:123.93:072.44:36-0.59:557:58New Moon26Sun
27Mon9:475.83:392.75:15-0.49:567:58New Moon27Mon
28Tue12:023.810:19 AM5.64:132.95:55-0.39:577:58Waxing Crescent28Tue
29Wed12:553.810:53 AM5.34:523.16:36-0.19:587:58Waxing Crescent29Wed
30Thu1:533.711:30 AM4.95:383.37:210.29:597:58Waxing Crescent30Thu
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 10:49 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 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