Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 21m at 5:40 am (-0.7 ft)
Next high tide : 12:36 pm (3.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:125.03:023.28:270.17:392.29:5510:31Waxing Crescent1Tue
2Wed2:024.94:393.29:400.18:462.59:5310:32First Quarter2Wed
3Thu3:084.86:063.410:58-0.110:272.69:5210:33First Quarter3Thu
4Fri4:284.77:083.712:07-0.39:5010:34First Quarter4Fri
5Sat5:474.87:544.11:06-0.59:4910:34First Quarter5Sat
6Sun6:584.98:324.41:091.91:57-0.59:4810:35Waxing Gibbous6Sun
7Mon8:005.09:064.82:081.42:41-0.59:4610:36Waxing Gibbous7Mon
8Tue8:555.19:405.12:580.83:21-0.39:4510:37Waxing Gibbous8Tue
9Wed9:455.010:135.33:450.33:580.09:4410:38Full Moon9Wed
10Thu10:344.810:465.44:310.04:340.49:4210:38Full Moon10Thu
11Fri11:234.511:205.45:17-0.25:100.89:4110:39Full Moon11Fri
12Sat12:144.16:02-0.35:451.39:4010:40Waning Gibbous12Sat
13Sun1:083.86:48-0.26:201.89:3810:41Waning Gibbous13Sun
14Mon12:295.02:083.57:36-0.16:572.29:3710:42Waning Gibbous14Mon
15Tue1:064.83:223.38:290.17:392.69:3610:42Waning Gibbous15Tue
16Wed1:494.44:533.39:320.38:442.89:3510:43Third Quarter16Wed
17Thu2:454.16:113.410:410.410:362.99:3310:44Third Quarter17Thu
18Fri4:043.97:053.611:450.59:3210:45Third Quarter18Fri
19Sat5:233.87:413.812:062.712:380.49:3110:46Third Quarter19Sat
20Sun6:303.98:084.01:062.31:220.49:3010:47Waning Crescent20Sun
21Mon7:264.08:334.31:511.91:590.49:2810:47Waning Crescent21Mon
22Tue8:144.18:564.52:281.52:320.59:2710:48Waning Crescent22Tue
23Wed8:574.29:204.83:041.03:020.69:2610:49Waning Crescent23Wed
24Thu9:394.29:465.13:390.63:320.79:2510:50New Moon24Thu
25Fri10:224.210:135.34:160.24:031.09:2410:51New Moon25Fri
26Sat11:084.110:445.54:56-0.24:361.39:2310:51New Moon26Sat
27Sun11:593.911:195.65:40-0.55:111.69:2110:52New Moon27Sun
28Mon12:553.86:27-0.65:511.99:2010:53Waxing Crescent28Mon
29Tue1:593.67:18-0.76:362.29:1910:54Waxing Crescent29Tue
30Wed12:455.43:133.58:15-0.67:342.59:1810:55Waxing Crescent30Wed
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 9:08 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 100% 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 Full Moon (100% 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