Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 5:40 am (-0.7 ft)
Next high tide : in 2h 40m at 9:58 pm (5.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:175.19:205.03:000.53:211.26:586:47Waxing Gibbous1Tue
2Wed9:415.310:014.83:300.83:590.96:586:45Full Moon2Wed
3Thu10:045.410:424.63:561.24:350.76:596:44Full Moon3Thu
4Fri10:275.511:244.34:211.65:110.67:006:42Full Moon4Fri
5Sat10:515.54:452.05:480.57:016:41Full Moon5Sat
6Sun12:084.111:17 AM5.45:092.36:270.57:016:40Waning Gibbous6Sun
7Mon12:583.811:45 AM5.35:342.77:110.67:026:38Waning Gibbous7Mon
8Tue1:563.612:175.25:592.98:010.77:036:37Waning Gibbous8Tue
9Wed3:193.412:565.06:273.29:030.97:046:36Waning Gibbous9Wed
10Thu1:484.710:160.97:056:34Third Quarter10Thu
11Fri6:273.63:044.58:593.511:210.87:066:33Third Quarter11Fri
12Sat6:593.84:334.511:073.47:066:32Third Quarter12Sat
13Sun7:224.15:484.612:120.712:192.97:076:30Third Quarter13Sun
14Mon7:434.46:514.712:550.61:122.37:086:29Waning Crescent14Mon
15Tue8:064.87:494.81:320.62:001.67:096:28Waning Crescent15Tue
16Wed8:315.38:434.92:070.72:450.97:106:26Waning Crescent16Wed
17Thu8:595.89:364.92:420.93:300.27:116:25New Moon17Thu
18Fri9:316.210:294.73:161.24:17-0.37:116:24New Moon18Fri
19Sat10:056.611:264.53:521.65:06-0.77:126:23New Moon19Sat
20Sun10:446.74:302.05:59-0.97:136:21Waxing Crescent20Sun
21Mon12:284.311:28 AM6.65:132.36:54-0.97:146:20Waxing Crescent21Mon
22Tue1:354.112:176.46:012.77:54-0.77:156:19Waxing Crescent22Tue
23Wed2:503.91:145.97:003.08:59-0.47:166:18Waxing Crescent23Wed
24Thu4:134.02:225.48:193.210:09-0.17:176:17First Quarter24Thu
25Fri5:254.23:464.910:083.111:150.17:186:16First Quarter25Fri
26Sat6:194.45:124.711:432.77:186:14First Quarter26Sat
27Sun7:024.76:284.512:110.312:542.27:196:13Waxing Gibbous27Sun
28Mon7:385.07:334.41:000.61:501.67:206:12Waxing Gibbous28Mon
29Tue8:085.38:294.31:410.92:361.17:216:11Waxing Gibbous29Tue
30Wed8:345.59:184.22:151.33:140.77:226:10Waxing Gibbous30Wed
31Thu8:585.610:024.12:451.73:500.47:236:09Full Moon31Thu
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 1:49 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 spring phase. Tonight's moon is 100% 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 (100% 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