Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 51m at 5:01 pm (2.8 ft)
Next high tide : 11:09 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:214.09:294.93:280.83:130.99:1810:55Waning Crescent1Sat
2Sun10:013.99:505.04:000.53:381.29:1710:56New Moon2Sun
3Mon10:413.810:135.14:330.24:031.59:1610:57New Moon3Mon
4Tue11:243.710:375.25:070.04:281.89:1510:58New Moon4Tue
5Wed12:093.55:43-0.14:542.19:1410:58New Moon5Wed
6Thu1:003.46:22-0.25:232.49:1310:59Waxing Crescent6Thu
7Fri1:573.37:03-0.25:542.69:1211:00Waxing Crescent7Fri
8Sat12:055.13:093.27:50-0.26:322.99:1111:01Waxing Crescent8Sat
9Sun12:454.94:333.38:44-0.17:283.19:1011:02Waxing Crescent9Sun
10Mon1:364.75:373.59:45-0.19:063.29:0911:02First Quarter10Mon
11Tue2:464.46:193.810:48-0.110:572.99:0811:03First Quarter11Tue
12Wed4:134.26:534.111:43-0.19:0711:04First Quarter12Wed
13Thu5:364.27:244.512:152.412:330.09:0711:05First Quarter13Thu
14Fri6:504.27:565.01:171.61:180.19:0611:06Waxing Gibbous14Fri
15Sat7:584.38:295.52:100.82:000.39:0511:06Waxing Gibbous15Sat
16Sun8:594.39:035.93:000.12:410.79:0411:07Waxing Gibbous16Sun
17Mon9:574.29:396.33:49-0.63:221.09:0411:08Full Moon17Mon
18Tue10:554.110:186.44:38-1.14:031.49:0311:09Full Moon18Tue
19Wed11:554.010:596.45:29-1.44:471.99:0211:09Full Moon19Wed
20Thu12:573.96:20-1.45:342.29:0211:10Waning Gibbous20Thu
21Fri2:023.87:12-1.36:272.69:0111:11Waning Gibbous21Fri
22Sat12:315.73:123.88:06-1.07:292.89:0011:12Waning Gibbous22Sat
23Sun1:245.24:243.99:04-0.78:502.99:0011:12Waning Gibbous23Sun
24Mon2:254.65:264.010:04-0.310:312.88:5911:13Third Quarter24Mon
25Tue3:404.16:154.211:020.011:572.58:5911:14Third Quarter25Tue
26Wed5:013.86:554.411:540.48:5811:15Third Quarter26Wed
27Thu6:163.67:284.61:042.012:390.78:5811:15Third Quarter27Thu
28Fri7:233.57:564.81:551.51:181.08:5811:16Waning Crescent28Fri
29Sat8:213.58:215.02:361.01:521.38:5711:17Waning Crescent29Sat
30Sun9:113.58:455.23:120.62:221.68:5711:17Waning Crescent30Sun
31Mon9:563.59:095.43:450.22:511.98:5611:18Waning Crescent31Mon
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 8:05 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 97% 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 (97% 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