Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 1:02 pm (2.5 ft)
Next high tide : in 6h 03m at 9:12 am (3.1 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 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:173.73:445.09:293.011:250.56:586:47First Quarter1Wed
2Thu6:213.95:065.011:102.96:586:45First Quarter2Thu
3Fri7:094.36:195.212:250.312:262.46:596:44Waxing Gibbous3Fri
4Sat7:494.77:255.31:170.21:281.97:006:42Waxing Gibbous4Sat
5Sun8:265.28:235.42:030.12:221.27:016:41Waxing Gibbous5Sun
6Mon9:015.69:165.42:450.23:120.67:016:40Waxing Gibbous6Mon
7Tue9:375.910:085.33:250.44:000.27:026:38Full Moon7Tue
8Wed10:136.111:005.14:040.84:48-0.17:036:37Full Moon8Wed
9Thu10:516.211:544.84:431.25:37-0.27:046:36Full Moon9Thu
10Fri11:306.15:231.66:27-0.27:056:34Waning Gibbous10Fri
11Sat12:514.512:115.86:062.17:190.07:066:33Waning Gibbous11Sat
12Sun1:534.212:565.56:512.58:150.37:066:32Waning Gibbous12Sun
13Mon3:063.91:455.17:452.89:190.67:076:30Waning Gibbous13Mon
14Tue4:293.92:474.78:593.110:290.87:086:29Third Quarter14Tue
15Wed5:434.04:064.410:393.111:330.97:096:28Third Quarter15Wed
16Thu6:394.25:244.312:012.87:106:26Third Quarter16Thu
17Fri7:204.46:304.312:280.91:002.57:116:25Third Quarter17Fri
18Sat7:524.67:264.31:121.01:462.17:116:24Waning Crescent18Sat
19Sun8:184.88:134.41:491.12:241.67:126:23Waning Crescent19Sun
20Mon8:425.08:554.52:201.22:581.27:136:21Waning Crescent20Mon
21Tue9:065.29:344.52:491.33:320.97:146:20Waning Crescent21Tue
22Wed9:305.410:134.43:161.54:060.67:156:19New Moon22Wed
23Thu9:555.610:544.33:441.74:420.37:166:18New Moon23Thu
24Fri10:235.711:404.24:131.95:210.17:176:17New Moon24Fri
25Sat10:545.84:442.26:030.07:186:16New Moon25Sat
26Sun12:294.111:29 AM5.75:192.46:490.07:186:14Waxing Crescent26Sun
27Mon1:253.912:105.66:002.77:400.07:196:13Waxing Crescent27Mon
28Tue2:293.812:595.46:512.98:370.17:206:12Waxing Crescent28Tue
29Wed3:433.92:005.17:593.19:420.27:216:11First Quarter29Wed
30Thu4:524.13:194.89:383.010:470.37:226:10First Quarter30Thu
31Fri5:484.44:474.611:152.711:460.47:236:09First Quarter31Fri
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 11:07 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 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