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 33m at 8:53 am (0.7 ft)
Next high tide : 3:57 pm (4.6 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 - Aug 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:024.56:31-0.56:232.09:1911:13Waning Gibbous1Wed
2Thu12:155.31:364.87:04-0.17:251.79:1911:12Waning Gibbous2Thu
3Fri1:104.72:145.17:370.58:361.59:2011:11Waning Gibbous3Fri
4Sat2:173.92:585.48:121.210:011.29:2111:10Third Quarter4Sat
5Sun3:493.33:505.68:531.911:280.79:2211:09Third Quarter5Sun
6Mon5:473.14:495.89:472.49:2211:08Third Quarter6Mon
7Tue7:423.25:515.912:450.211:03 AM2.89:2311:07Waning Crescent7Tue
8Wed8:523.56:546.11:49-0.312:253.09:2411:06Waning Crescent8Wed
9Thu9:363.87:526.22:42-0.71:372.89:2511:05Waning Crescent9Thu
10Fri10:114.08:446.33:27-0.92:352.69:2511:04Waning Crescent10Fri
11Sat10:444.19:306.24:08-0.93:242.49:2611:03New Moon11Sat
12Sun11:154.210:126.14:45-0.84:102.19:2711:02New Moon12Sun
13Mon11:454.310:525.75:19-0.54:542.09:2811:01New Moon13Mon
14Tue12:144.55:49-0.25:381.99:2811:00New Moon14Tue
15Wed12:424.66:170.36:231.89:2910:58Waxing Crescent15Wed
16Thu12:134.81:094.66:430.87:101.79:3010:57Waxing Crescent16Thu
17Fri12:564.21:374.77:051.38:031.79:3110:56Waxing Crescent17Fri
18Sat1:473.72:084.77:261.99:081.79:3110:55Waxing Crescent18Sat
19Sun2:573.22:454.77:442.310:321.59:3210:54First Quarter19Sun
20Mon5:012.93:364.77:562.811:551.29:3310:52First Quarter20Mon
21Tue4:414.89:3410:51First Quarter21Tue
22Wed5:475.01:020.99:3410:50First Quarter22Wed
23Thu9:153.56:465.31:520.412:223.39:3510:49Waxing Gibbous23Thu
24Fri9:313.77:375.62:330.11:243.09:3610:47Waxing Gibbous24Fri
25Sat9:513.98:235.93:08-0.32:132.79:3710:46Waxing Gibbous25Sat
26Sun10:124.19:066.13:41-0.52:582.39:3710:45Waxing Gibbous26Sun
27Mon10:374.39:496.14:13-0.63:431.99:3810:43Full Moon27Mon
28Tue11:044.710:345.94:45-0.54:301.69:3910:42Full Moon28Tue
29Wed11:335.011:225.55:17-0.25:211.29:4010:41Full Moon29Wed
30Thu12:065.35:490.36:160.99:4010:39Waning Gibbous30Thu
31Fri12:165.012:415.66:220.97:150.79:4110:38Waning Gibbous31Fri
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 12:25 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 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