Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 5h 18m at 12:51 am (0.7 ft)
Next high tide (tomorrow) : 6:59 am (2.9 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:153.47:176.42:16-0.412:392.96:128:06Waning Crescent1Tue
2Wed9:553.78:136.73:04-1.01:492.86:138:05Waning Crescent2Wed
3Thu10:313.99:076.93:50-1.32:502.56:148:04New Moon3Thu
4Fri11:084.19:586.84:33-1.53:462.26:158:03New Moon4Fri
5Sat11:454.410:486.65:15-1.44:421.96:158:02New Moon5Sat
6Sun12:224.65:55-1.15:401.76:168:01Waxing Crescent6Sun
7Mon1:004.96:33-0.66:391.56:178:00Waxing Crescent7Mon
8Tue12:325.41:395.17:090.17:411.46:187:59Waxing Crescent8Tue
9Wed1:284.62:205.27:440.88:501.36:187:58Waxing Crescent9Wed
10Thu2:353.83:055.28:191.510:121.26:197:57First Quarter10Thu
11Fri4:083.33:565.28:572.211:361.06:207:56First Quarter11Fri
12Sat6:113.14:535.19:492.86:217:54First Quarter12Sat
13Sun8:153.35:535.212:500.711:10 AM3.16:217:53First Quarter13Sun
14Mon9:123.66:505.21:500.412:323.26:227:52Waxing Gibbous14Mon
15Tue9:433.77:415.42:370.11:353.16:237:51Waxing Gibbous15Tue
16Wed10:073.88:255.53:15-0.12:202.96:247:50Waxing Gibbous16Wed
17Thu10:293.99:025.63:48-0.22:572.76:247:49Waxing Gibbous17Thu
18Fri10:503.99:365.74:18-0.23:312.56:257:47Full Moon18Fri
19Sat11:124.010:105.64:45-0.24:062.36:267:46Full Moon19Sat
20Sun11:354.210:445.45:12-0.14:432.16:277:45Full Moon20Sun
21Mon11:584.411:205.15:370.15:241.96:277:44Full Moon21Mon
22Tue12:234.66:010.56:081.86:287:42Waning Gibbous22Tue
23Wed12:484.86:250.96:561.66:297:41Waning Gibbous23Wed
24Thu12:454.21:165.06:491.47:511.56:307:40Waning Gibbous24Thu
25Fri1:423.71:505.17:131.99:021.36:307:39Waning Gibbous25Fri
26Sat3:053.22:355.37:382.410:291.06:317:37Third Quarter26Sat
27Sun5:173.03:355.48:112.811:520.56:327:36Third Quarter27Sun
28Mon7:323.24:495.69:353.26:337:35Third Quarter28Mon
29Tue8:253.56:025.81:010.011:33 AM3.26:337:33Waning Crescent29Tue
30Wed8:563.87:096.11:56-0.412:562.96:347:32Waning Crescent30Wed
31Thu9:264.18:096.42:43-0.82:012.56:357:31Waning Crescent31Thu
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 3:55 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 transitional phase. Tonight's moon is 39% 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 Third Quarter (39% 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