Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:42 pm (1.5 ft)
Next high tide : in 5h 16m at 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:515.04:313.89:22-0.49:152.66:117:48First Quarter1Fri
2Sat2:564.55:413.910:29-0.110:522.66:107:49First Quarter2Sat
3Sun4:144.16:374.111:330.16:097:50First Quarter3Sun
4Mon5:333.97:224.312:142.312:280.36:087:51First Quarter4Mon
5Tue6:433.87:574.51:171.91:150.56:077:51Waxing Gibbous5Tue
6Wed7:433.88:254.72:061.41:540.76:067:52Waxing Gibbous6Wed
7Thu8:333.88:514.82:451.02:270.96:057:53Waxing Gibbous7Thu
8Fri9:163.89:145.03:200.72:561.26:047:54Waxing Gibbous8Fri
9Sat9:563.89:385.13:540.33:231.46:037:55Full Moon9Sat
10Sun10:373.810:035.24:270.13:501.66:027:55Full Moon10Sun
11Mon11:183.710:295.35:01-0.14:181.96:017:56Full Moon11Mon
12Tue12:033.65:38-0.34:482.16:017:57Full Moon12Tue
13Wed12:503.56:16-0.35:222.36:007:58Waning Gibbous13Wed
14Thu1:423.56:57-0.46:002.55:597:59Waning Gibbous14Thu
15Fri12:065.12:413.47:42-0.36:462.75:587:59Waning Gibbous15Fri
16Sat12:484.93:473.58:32-0.27:482.95:588:00Waning Gibbous16Sat
17Sun1:414.64:493.79:28-0.19:172.95:578:01Third Quarter17Sun
18Mon2:504.35:384.010:270.010:562.65:568:02Third Quarter18Mon
19Tue4:154.16:214.411:230.15:558:03Third Quarter19Tue
20Wed5:394.07:004.812:132.012:150.25:558:03Third Quarter20Wed
21Thu6:554.07:385.31:161.31:030.45:548:04Waning Crescent21Thu
22Fri8:044.18:165.82:110.51:500.65:548:05Waning Crescent22Fri
23Sat9:054.18:556.13:01-0.22:350.95:538:06Waning Crescent23Sat
24Sun10:024.29:346.43:49-0.83:191.25:528:06New Moon24Sun
25Mon10:584.110:156.44:38-1.14:031.55:528:07New Moon25Mon
26Tue11:554.110:586.35:26-1.34:501.85:518:08New Moon26Tue
27Wed12:534.06:15-1.35:412.15:518:08Waxing Crescent27Wed
28Thu1:524.07:05-1.16:352.45:518:09Waxing Crescent28Thu
29Fri12:305.52:534.07:54-0.87:362.65:508:10Waxing Crescent29Fri
30Sat1:215.03:574.08:47-0.48:502.75:508:10Waxing Crescent30Sat
31Sun2:174.54:564.19:420.010:192.65:498:11First Quarter31Sun
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 8:08 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 neap phase. Tonight's moon is 50% 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 minimum.

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 (50% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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