Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 34m at 11:37 am (1.7 ft)
Next high tide : 6:28 pm (5.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:214.09:294.93:280.83:130.96:117:48Waning Crescent1Sat
2Sun10:013.99:505.04:000.53:381.26:107:49New Moon2Sun
3Mon10:413.810:135.14:330.24:031.56:097:50New Moon3Mon
4Tue11:243.710:375.25:070.04:281.86:087:51New Moon4Tue
5Wed12:093.55:43-0.14:542.16:077:52New Moon5Wed
6Thu1:003.46:22-0.25:232.46:067:53Waxing Crescent6Thu
7Fri1:573.37:03-0.25:542.66:057:53Waxing Crescent7Fri
8Sat12:055.13:093.27:50-0.26:322.96:047:54Waxing Crescent8Sat
9Sun12:454.94:333.38:44-0.17:283.16:037:55Waxing Crescent9Sun
10Mon1:364.75:373.59:45-0.19:063.26:027:56First Quarter10Mon
11Tue2:464.46:193.810:48-0.110:572.96:017:57First Quarter11Tue
12Wed4:134.26:534.111:43-0.16:007:57First Quarter12Wed
13Thu5:364.27:244.512:152.412:330.06:007:58First Quarter13Thu
14Fri6:504.27:565.01:171.61:180.15:597:59Waxing Gibbous14Fri
15Sat7:584.38:295.52:100.82:000.35:588:00Waxing Gibbous15Sat
16Sun8:594.39:035.93:000.12:410.75:578:01Waxing Gibbous16Sun
17Mon9:574.29:396.33:49-0.63:221.05:578:01Full Moon17Mon
18Tue10:554.110:186.44:38-1.14:031.45:568:02Full Moon18Tue
19Wed11:554.010:596.45:29-1.44:471.95:558:03Full Moon19Wed
20Thu12:573.96:20-1.45:342.25:558:04Waning Gibbous20Thu
21Fri2:023.87:12-1.36:272.65:548:04Waning Gibbous21Fri
22Sat12:315.73:123.88:06-1.07:292.85:538:05Waning Gibbous22Sat
23Sun1:245.24:243.99:04-0.78:502.95:538:06Waning Gibbous23Sun
24Mon2:254.65:264.010:04-0.310:312.85:528:07Third Quarter24Mon
25Tue3:404.16:154.211:020.011:572.55:528:07Third Quarter25Tue
26Wed5:013.86:554.411:540.45:518:08Third Quarter26Wed
27Thu6:163.67:284.61:042.012:390.75:518:09Third Quarter27Thu
28Fri7:233.57:564.81:551.51:181.05:518:09Waning Crescent28Fri
29Sat8:213.58:215.02:361.01:521.35:508:10Waning Crescent29Sat
30Sun9:113.58:455.23:120.62:221.65:508:11Waning Crescent30Sun
31Mon9:563.59:095.43:450.22:511.95:498:11Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 3:02 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 transitional phase. Tonight's moon is 69% 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 First Quarter (69% 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