Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 18m at 10:20 pm (2.1 ft)
Next high tide (tomorrow) : 3:26 am (3.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:415.06:254.712:020.212:401.69:318:15Waxing Gibbous1Wed
2Thu7:095.67:284.712:420.51:310.89:328:14Waxing Gibbous2Thu
3Fri7:406.18:264.61:190.82:200.09:338:13Waxing Gibbous3Fri
4Sat8:126.59:244.51:561.33:08-0.69:348:12Full Moon4Sat
5Sun8:476.810:244.32:321.83:57-1.09:348:11Full Moon5Sun
6Mon9:236.811:274.13:102.24:47-1.19:358:10Full Moon6Mon
7Tue10:036.63:502.65:39-1.09:368:10Waning Gibbous7Tue
8Wed12:333.910:47 AM6.34:353.06:33-0.79:378:09Waning Gibbous8Wed
9Thu1:483.911:35 AM5.85:283.37:31-0.49:388:08Waning Gibbous9Thu
10Fri3:103.912:305.26:373.58:340.09:398:07Waning Gibbous10Fri
11Sat4:194.01:394.78:183.59:370.39:408:06Third Quarter11Sat
12Sun5:094.23:044.310:073.210:330.59:418:06Third Quarter12Sun
13Mon5:474.44:264.011:232.811:190.89:428:05Third Quarter13Mon
14Tue6:164.65:363.912:182.29:438:04Third Quarter14Tue
15Wed6:404.96:373.81:021.79:448:04Waning Crescent15Wed
16Thu7:025.17:313.812:281.41:401.19:458:03Waning Crescent16Thu
17Fri7:225.48:193.812:561.72:140.79:468:03Waning Crescent17Fri
18Sat7:445.69:043.81:212.02:470.39:478:02Waning Crescent18Sat
19Sun8:065.89:503.71:462.33:22-0.19:488:01New Moon19Sun
20Mon8:315.910:383.72:122.63:58-0.39:498:01New Moon20Mon
21Tue8:596.011:303.72:392.84:37-0.59:508:00New Moon21Tue
22Wed9:316.03:093.05:20-0.69:518:00New Moon22Wed
23Thu12:253.610:07 AM5.93:423.26:05-0.69:528:00Waxing Crescent23Thu
24Fri1:273.610:50 AM5.74:243.36:54-0.59:537:59Waxing Crescent24Fri
25Sat2:343.611:41 AM5.45:253.47:47-0.39:547:59Waxing Crescent25Sat
26Sun3:313.812:435.06:523.58:42-0.19:557:59First Quarter26Sun
27Mon4:124.12:034.68:473.39:360.19:567:58First Quarter27Mon
28Tue4:474.53:354.210:252.710:250.49:577:58First Quarter28Tue
29Wed5:205.05:033.911:381.811:100.89:587:58First Quarter29Wed
30Thu5:535.56:253.812:380.99:587:58Waxing Gibbous30Thu
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 12:53 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 62% 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 Third Quarter (62% 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