Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 7h 26m at 3:00 am (0.0 ft)
Next high tide (tomorrow) : 10:04 am (3.5 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:185.29:284.72:251.53:03-0.76:477:25Waxing Gibbous1Mon
2Tue9:105.19:555.03:140.93:37-0.36:467:26Full Moon2Tue
3Wed9:594.810:245.34:010.34:090.16:457:26Full Moon3Wed
4Thu10:484.510:525.44:460.04:390.66:437:27Full Moon4Thu
5Fri11:384.111:215.45:31-0.35:081.26:427:28Full Moon5Fri
6Sat12:323.76:16-0.35:361.76:407:29Waning Gibbous6Sat
7Sun1:303.47:03-0.36:022.26:397:30Waning Gibbous7Sun
8Mon12:215.12:443.17:53-0.16:262.66:387:30Waning Gibbous8Mon
9Tue12:554.84:413.08:520.16:452.96:367:31Waning Gibbous9Tue
10Wed1:364.510:050.36:357:32Third Quarter10Wed
11Thu2:394.27:483.311:190.310:453.26:347:33Third Quarter11Thu
12Fri4:134.08:003.512:200.36:327:34Third Quarter12Fri
13Sat5:374.08:163.712:222.91:080.26:317:34Third Quarter13Sat
14Sun6:424.18:323.91:162.51:450.26:307:35Waning Crescent14Sun
15Mon7:354.28:494.21:582.02:160.26:297:36Waning Crescent15Mon
16Tue8:224.29:074.52:351.52:440.36:277:37Waning Crescent16Tue
17Wed9:054.29:274.93:111.03:100.56:267:38Waning Crescent17Wed
18Thu9:494.29:495.23:480.53:360.86:257:38New Moon18Thu
19Fri10:364.010:145.54:270.04:031.26:247:39New Moon19Fri
20Sat11:273.810:445.75:10-0.44:321.66:227:40New Moon20Sat
21Sun12:243.65:56-0.75:032.06:217:41Waxing Crescent21Sun
22Mon1:303.46:46-0.95:382.46:207:42Waxing Crescent22Mon
23Tue2:493.27:42-0.96:192.76:197:43Waxing Crescent23Tue
24Wed12:475.64:273.28:47-0.87:193.06:187:43Waxing Crescent24Wed
25Thu1:475.35:453.59:59-0.79:033.16:167:44First Quarter25Thu
26Fri3:044.96:353.811:09-0.611:032.96:157:45First Quarter26Fri
27Sat4:354.67:144.112:08-0.56:147:46First Quarter27Sat
28Sun5:574.57:474.512:282.312:59-0.46:137:47Waxing Gibbous28Sun
29Mon7:104.48:174.91:331.61:43-0.16:127:48Waxing Gibbous29Mon
30Tue8:144.38:465.32:260.92:200.36:117:48Waxing Gibbous30Tue
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 6:32 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 80% 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 (80% 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