Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 40m at 10:52 am (1.1 ft)
Next high tide : 5:49 pm (5.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:224.98:293.712:232.51:43-0.36:325:58Waning Crescent1Fri
2Sat7:095.08:563.81:142.32:20-0.46:315:59Waning Crescent2Sat
3Sun7:495.19:213.81:532.12:52-0.46:296:00Waning Crescent3Sun
4Mon8:255.19:443.92:271.93:21-0.46:286:01New Moon4Mon
5Tue8:585.110:074.02:591.73:48-0.36:276:01New Moon5Tue
6Wed9:315.010:314.13:321.54:14-0.16:256:02New Moon6Wed
7Thu10:054.810:564.34:071.34:400.16:246:03New Moon7Thu
8Fri10:414.511:224.44:441.25:060.56:236:04Waxing Crescent8Fri
9Sat11:214.111:504.45:251.15:320.86:216:05Waxing Crescent9Sat
10Sun1:073.77:101.16:581.37:207:06Waxing Crescent10Sun
11Mon1:214.52:053.28:041.07:261.77:187:07Waxing Crescent11Mon
12Tue1:584.63:332.99:140.98:012.17:177:07First Quarter12Tue
13Wed2:484.65:332.810:380.79:002.57:167:08First Quarter13Wed
14Thu3:544.77:103.111:560.310:452.77:147:09First Quarter14Thu
15Fri5:104.88:043.41:00-0.27:137:10First Quarter15Fri
16Sat6:205.18:413.712:142.51:53-0.77:127:11Waxing Gibbous16Sat
17Sun7:245.49:144.11:232.22:39-1.07:107:12Waxing Gibbous17Sun
18Mon8:225.79:474.42:211.73:21-1.17:097:12Waxing Gibbous18Mon
19Tue9:145.810:214.73:131.24:01-1.07:077:13Full Moon19Tue
20Wed10:045.710:565.04:030.74:40-0.87:067:14Full Moon20Wed
21Thu10:555.411:335.24:530.35:18-0.47:047:15Full Moon21Thu
22Fri11:485.05:450.15:560.27:037:16Waning Gibbous22Fri
23Sat12:105.312:434.46:380.06:340.87:027:17Waning Gibbous23Sat
24Sun12:505.31:443.97:340.07:121.47:007:17Waning Gibbous24Sun
25Mon1:315.13:003.48:350.17:552.06:597:18Waning Gibbous25Mon
26Tue2:194.84:403.29:480.28:522.56:577:19Third Quarter26Tue
27Wed3:184.56:243.211:070.310:322.86:567:20Third Quarter27Wed
28Thu4:334.37:393.512:180.26:557:21Third Quarter28Thu
29Fri5:484.28:223.712:102.71:170.16:537:21Third Quarter29Fri
30Sat6:534.38:513.81:182.52:030.06:527:22Waning Crescent30Sat
31Sun7:464.49:154.02:052.22:400.06:507:23Waning Crescent31Sun
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 2:20 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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