Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:00 am (0.0 ft)
Next high tide : in 4h 10m at 7:11 pm (5.4 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 9:13 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:586.24:451.55:53-0.210:059:53New Moon1Thu
2Fri12:094.411:36 AM6.35:211.96:48-0.410:069:51Waxing Crescent2Fri
3Sat1:144.112:206.26:002.47:49-0.310:069:50Waxing Crescent3Sat
4Sun2:313.81:126.06:462.88:59-0.210:079:48Waxing Crescent4Sun
5Mon4:073.72:175.67:483.110:16-0.110:089:47First Quarter5Mon
6Tue5:373.83:395.39:313.311:280.010:099:46First Quarter6Tue
7Wed6:404.15:075.111:223.110:109:44First Quarter7Wed
8Thu7:254.46:235.112:290.012:412.610:109:43Waxing Gibbous8Thu
9Fri8:014.77:285.01:210.11:412.010:119:42Waxing Gibbous9Fri
10Sat8:315.08:234.92:030.32:301.510:129:40Waxing Gibbous10Sat
11Sun8:585.39:114.82:390.63:131.010:139:39Waxing Gibbous11Sun
12Mon9:235.59:554.63:101.03:510.710:149:38Full Moon12Mon
13Tue9:475.610:384.43:371.44:280.410:149:36Full Moon13Tue
14Wed10:105.711:224.24:031.85:040.310:159:35Full Moon14Wed
15Thu10:345.74:272.25:410.210:169:34Full Moon15Thu
16Fri12:094.011:00 AM5.64:522.56:200.310:179:32Waning Gibbous16Fri
17Sat12:593.811:28 AM5.55:172.87:020.410:189:31Waning Gibbous17Sat
18Sun1:593.612:005.35:443.17:500.510:199:30Waning Gibbous18Sun
19Mon3:203.512:395.06:143.38:480.710:209:29Waning Gibbous19Mon
20Tue1:284.79:540.810:209:28Third Quarter20Tue
21Wed6:103.72:394.58:493.610:580.710:219:26Third Quarter21Wed
22Thu6:423.94:094.310:593.411:490.710:229:25Third Quarter22Thu
23Fri7:044.25:284.312:122.910:239:24Third Quarter23Fri
24Sat7:254.56:364.412:320.71:052.310:249:23Waning Crescent24Sat
25Sun7:474.97:374.51:100.81:521.610:259:22Waning Crescent25Sun
26Mon8:125.48:334.61:450.92:360.910:269:21Waning Crescent26Mon
27Tue8:405.99:274.62:191.23:200.210:279:20Waning Crescent27Tue
28Wed9:116.310:214.52:541.54:05-0.510:289:18New Moon28Wed
29Thu9:456.711:184.33:301.84:54-0.910:289:17New Moon29Thu
30Fri10:246.84:082.25:45-1.110:299:16New Moon30Fri
31Sat12:194.211:08 AM6.84:512.56:39-1.110:309:15Waxing Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 11:05 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 transitional phase. Tonight's moon is 79% 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 Waxing Gibbous (79% 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