Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 2:25 pm (2.9 ft)
Next high tide : in 2h 46m at 10:51 am (3.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:064.14:394.99:410.511:121.75:528:21First Quarter1Fri
2Sat4:323.45:245.210:261.25:538:21First Quarter2Sat
3Sun6:093.16:075.312:291.111:12 AM1.85:538:21First Quarter3Sun
4Mon7:513.06:485.51:350.611:59 AM2.35:548:21Waxing Gibbous4Mon
5Tue9:113.27:285.62:270.212:472.75:548:21Waxing Gibbous5Tue
6Wed10:063.38:065.63:10-0.21:362.95:558:20Waxing Gibbous6Wed
7Thu10:473.58:435.73:48-0.42:203.05:558:20Waxing Gibbous7Thu
8Fri11:213.59:195.84:24-0.53:002.95:568:20Full Moon8Fri
9Sat11:523.69:535.84:58-0.63:382.95:568:20Full Moon9Sat
10Sun12:223.65:31-0.64:162.85:578:19Full Moon10Sun
11Mon12:523.76:03-0.64:572.85:588:19Full Moon11Mon
12Tue1:213.86:33-0.55:412.75:588:18Waning Gibbous12Tue
13Wed1:513.97:03-0.36:302.75:598:18Waning Gibbous13Wed
14Thu12:165.02:224.17:320.07:262.66:008:18Waning Gibbous14Thu
15Fri12:594.52:544.38:000.48:322.46:008:17Waning Gibbous15Fri
16Sat1:523.93:284.68:300.99:562.16:018:17Third Quarter16Sat
17Sun3:063.34:085.09:021.411:211.56:028:16Third Quarter17Sun
18Mon4:532.94:525.39:432.06:028:16Third Quarter18Mon
19Tue6:492.95:425.712:340.810:37 AM2.46:038:15Third Quarter19Tue
20Wed8:253.16:366.11:360.111:43 AM2.76:048:14Waning Crescent20Wed
21Thu9:233.47:326.52:30-0.612:542.86:048:14Waning Crescent21Thu
22Fri10:073.68:276.83:19-1.12:012.76:058:13Waning Crescent22Fri
23Sat10:483.89:196.94:05-1.53:012.56:068:12New Moon23Sat
24Sun11:274.010:106.94:49-1.63:582.36:078:12New Moon24Sun
25Mon12:064.35:32-1.54:552.16:078:11New Moon25Mon
26Tue12:464.56:13-1.25:541.96:088:10Waxing Crescent26Tue
27Wed1:254.76:52-0.76:551.86:098:10Waxing Crescent27Wed
28Thu12:445.32:054.97:29-0.17:591.76:098:09Waxing Crescent28Thu
29Fri1:414.52:485.08:050.69:121.66:108:08Waxing Crescent29Fri
30Sat2:483.83:335.18:411.410:371.46:118:07First Quarter30Sat
31Sun4:213.24:235.19:202.111:581.06:128:06First 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 12:38 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 96% 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 (96% 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