Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 05m at 7:17 am (-0.4 ft)
Next high tide : 2:14 pm (3.8 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:00 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:534.011:30 AM4.75:522.56:360.110:188:09Waning Gibbous1Tue
2Wed1:314.212:184.36:522.57:110.510:188:09Waning Gibbous2Wed
3Thu2:134.41:203.78:082.37:510.910:188:10Third Quarter3Thu
4Fri2:594.72:473.29:371.98:391.310:188:11Third Quarter4Fri
5Sat3:475.04:303.010:561.39:361.710:188:12Third Quarter5Sat
6Sun4:375.46:053.112:020.510:188:13Third Quarter6Sun
7Mon5:285.87:193.312:57-0.210:188:14Waning Crescent7Mon
8Tue6:196.28:153.61:46-0.810:188:15Waning Crescent8Tue
9Wed7:106.59:023.912:442.12:32-1.310:188:15Waning Crescent9Wed
10Thu7:596.79:464.11:412.03:17-1.610:188:16New Moon10Thu
11Fri8:476.710:304.32:351.94:01-1.610:188:17New Moon11Fri
12Sat9:356.511:134.53:291.84:43-1.510:188:18New Moon12Sat
13Sun10:246.111:564.64:241.75:25-1.110:178:19Waxing Crescent13Sun
14Mon11:135.55:211.76:06-0.610:178:20Waxing Crescent14Mon
15Tue12:404.712:054.86:201.76:450.010:178:21Waxing Crescent15Tue
16Wed1:264.81:024.17:261.77:260.610:178:22Waxing Crescent16Wed
17Thu2:144.82:133.48:461.78:091.210:168:23First Quarter17Thu
18Fri3:064.83:483.010:141.49:001.810:168:24First Quarter18Fri
19Sat4:004.85:342.911:321.110:002.210:158:25First Quarter19Sat
20Sun4:524.97:043.012:340.710:158:26First Quarter20Sun
21Mon5:415.08:003.21:210.310:158:27Waxing Gibbous21Mon
22Tue6:265.28:373.412:012.51:590.010:148:28Waxing Gibbous22Tue
23Wed7:065.39:073.512:512.52:32-0.310:148:29Waxing Gibbous23Wed
24Thu7:435.59:353.61:332.43:03-0.410:138:30Waxing Gibbous24Thu
25Fri8:185.610:033.82:112.23:32-0.510:138:31Full Moon25Fri
26Sat8:515.610:313.92:482.14:01-0.610:128:32Full Moon26Sat
27Sun9:265.510:594.03:262.04:30-0.510:118:33Full Moon27Sun
28Mon10:015.311:294.24:071.94:59-0.410:118:34Full Moon28Mon
29Tue10:405.04:511.85:28-0.110:108:35Waning Gibbous29Tue
30Wed12:004.411:23 AM4.65:391.75:590.310:098:36Waning Gibbous30Wed
31Thu12:344.512:134.06:341.66:300.710:098:37Waning Gibbous31Thu
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 10:45 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 88% 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 Waning Gibbous (88% 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