Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 5h 21m at 10:20 pm (2.1 ft)
Next high tide (tomorrow) : 3:26 am (3.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:286.17:373.81:310.19:597:58Waxing Gibbous1Fri
2Sat7:046.58:413.912:361.72:19-0.610:007:57Waxing Gibbous2Sat
3Sun7:426.89:393.91:192.13:06-1.110:017:57Full Moon3Sun
4Mon8:216.910:373.92:012.43:52-1.410:027:57Full Moon4Mon
5Tue9:016.811:333.92:452.74:39-1.410:037:57Full Moon5Tue
6Wed9:436.53:312.95:26-1.210:047:57Full Moon6Wed
7Thu12:273.910:27 AM6.14:213.06:12-0.910:047:57Waning Gibbous7Thu
8Fri1:223.911:13 AM5.65:173.16:58-0.610:057:57Waning Gibbous8Fri
9Sat2:183.912:025.16:193.27:45-0.110:067:58Waning Gibbous9Sat
10Sun3:134.012:564.57:363.28:330.310:077:58Third Quarter10Sun
11Mon3:594.22:023.99:133.09:190.710:087:58Third Quarter11Mon
12Tue4:374.43:273.510:412.610:011.210:087:58Third Quarter12Tue
13Wed5:094.64:543.211:482.010:401.610:097:58Third Quarter13Wed
14Thu5:384.96:183.112:401.410:107:59Waning Crescent14Thu
15Fri6:065.27:293.21:220.810:107:59Waning Crescent15Fri
16Sat6:335.48:263.31:590.310:117:59Waning Crescent16Sat
17Sun7:025.79:133.412:262.52:34-0.210:128:00Waning Crescent17Sun
18Mon7:335.99:583.51:032.73:10-0.510:128:00Waning Crescent18Mon
19Tue8:066.110:413.61:412.93:47-0.810:138:00New Moon19Tue
20Wed8:426.211:243.62:202.94:26-1.010:138:01New Moon20Wed
21Thu9:216.23:012.95:07-1.110:148:01New Moon21Thu
22Fri12:063.710:03 AM6.13:473.05:48-1.110:148:02Waxing Crescent22Fri
23Sat12:493.710:48 AM5.94:422.96:30-0.910:158:02Waxing Crescent23Sat
24Sun1:333.911:39 AM5.45:462.97:12-0.610:158:03Waxing Crescent24Sun
25Mon2:174.112:374.87:022.87:56-0.210:168:04Waxing Crescent25Mon
26Tue3:014.51:504.18:352.58:420.410:168:04First Quarter26Tue
27Wed3:444.93:253.510:111.99:291.010:168:05First Quarter27Wed
28Thu4:265.35:083.211:301.110:191.610:178:05First Quarter28Thu
29Fri5:095.86:463.212:350.210:178:06Waxing Gibbous29Fri
30Sat5:536.18:033.41:30-0.510:178:07Waxing Gibbous30Sat
31Sun6:396.49:033.612:042.42:18-1.010:178:08Waxing Gibbous31Sun
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 12:53 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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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