Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 51m at 1:02 pm (2.5 ft)
Next high tide : 7:41 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:103.31:435.16:433.210:100.76:586:46First Quarter1Tue
2Wed2:545.011:270.46:596:45First Quarter2Wed
3Thu7:293.74:275.110:153.66:596:43First Quarter3Thu
4Fri7:514.05:495.312:300.112:003.37:006:42First Quarter4Fri
5Sat8:154.36:585.51:21-0.21:082.77:016:40Waxing Gibbous5Sat
6Sun8:414.77:595.72:05-0.32:042.07:026:39Waxing Gibbous6Sun
7Mon9:095.18:545.72:45-0.32:541.37:036:38Waxing Gibbous7Mon
8Tue9:385.59:475.63:220.03:430.77:036:36Full Moon8Tue
9Wed10:105.910:405.23:580.44:330.27:046:35Full Moon9Wed
10Thu10:436.211:374.84:330.95:24-0.27:056:34Full Moon10Thu
11Fri11:186.35:081.56:16-0.37:066:32Waning Gibbous11Fri
12Sat12:384.411:55 AM6.25:452.17:11-0.37:076:31Waning Gibbous12Sat
13Sun1:474.012:365.96:242.78:10-0.17:086:30Waning Gibbous13Sun
14Mon3:143.81:225.57:093.19:190.27:086:28Waning Gibbous14Mon
15Tue5:023.82:205.08:143.510:350.37:096:27Third Quarter15Tue
16Wed6:284.03:424.710:193.611:450.47:106:26Third Quarter16Wed
17Thu7:204.25:104.512:003.37:116:25Third Quarter17Thu
18Fri7:534.46:224.512:420.41:042.97:126:23Third Quarter18Fri
19Sat8:194.57:194.61:280.51:492.57:136:22Waning Crescent19Sat
20Sun8:404.78:074.62:040.62:262.07:146:21Waning Crescent20Sun
21Mon9:004.98:484.62:330.82:591.67:146:20Waning Crescent21Mon
22Tue9:185.19:274.52:581.03:321.27:156:19Waning Crescent22Tue
23Wed9:375.310:074.43:211.34:050.87:166:17New Moon23Wed
24Thu9:565.510:484.23:431.64:390.57:176:16New Moon24Thu
25Fri10:185.611:344.04:061.95:170.37:186:15New Moon25Fri
26Sat10:425.74:292.35:570.17:196:14New Moon26Sat
27Sun12:263.811:09 AM5.84:532.66:420.07:206:13Waxing Crescent27Sun
28Mon1:263.611:42 AM5.75:193.07:320.07:216:12Waxing Crescent28Mon
29Tue2:453.512:225.65:483.28:320.07:226:11Waxing Crescent29Tue
30Wed1:155.39:410.17:236:10First Quarter30Wed
31Thu5:533.82:305.08:113.710:500.07:246:09First Quarter31Thu
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 4:21 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 85% 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 (85% 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