Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 5:06 am (-0.6 ft)
Next high tide : in 1h 31m at 9:24 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:104.35:44-0.45:212.09:1911:12Full Moon1Tue
2Wed12:464.56:19-0.36:111.99:2011:12Waning Gibbous2Wed
3Thu12:055.31:244.76:550.07:061.89:2011:11Waning Gibbous3Thu
4Fri12:564.82:064.97:320.48:101.79:2111:10Waning Gibbous4Fri
5Sat1:554.32:545.18:130.99:271.59:2211:09Third Quarter5Sat
6Sun3:113.83:485.39:011.410:531.29:2311:08Third Quarter6Sun
7Mon4:463.44:485.510:021.89:2311:07Third Quarter7Mon
8Tue6:213.45:485.712:100.711:11 AM2.19:2411:06Third Quarter8Tue
9Wed7:423.66:476.01:160.212:212.39:2511:05Waning Crescent9Wed
10Thu8:413.97:436.22:12-0.21:262.29:2611:04Waning Crescent10Thu
11Fri9:274.18:346.33:00-0.62:232.19:2711:02Waning Crescent11Fri
12Sat10:084.49:216.33:43-0.73:151.99:2711:01New Moon12Sat
13Sun10:474.510:066.14:24-0.74:021.79:2811:00New Moon13Sun
14Mon11:244.610:495.95:02-0.54:491.69:2910:59New Moon14Mon
15Tue12:004.75:39-0.25:351.69:3010:58New Moon15Tue
16Wed12:364.76:140.26:221.69:3010:57Waxing Crescent16Wed
17Thu12:155.01:124.76:470.67:111.69:3110:56Waxing Crescent17Thu
18Fri1:014.51:494.77:201.18:041.79:3210:54Waxing Crescent18Fri
19Sat1:524.02:304.67:521.69:081.89:3310:53Waxing Crescent19Sat
20Sun2:563.53:184.68:292.010:271.79:3310:52First Quarter20Sun
21Mon4:263.24:144.69:162.411:441.59:3410:51First Quarter21Mon
22Tue6:053.25:144.710:272.79:3510:49First Quarter22Tue
23Wed7:273.46:104.912:481.211:41 AM2.89:3610:48First Quarter23Wed
24Thu8:183.67:005.11:380.812:432.79:3610:47Waxing Gibbous24Thu
25Fri8:533.87:465.32:190.51:352.69:3710:46Waxing Gibbous25Fri
26Sat9:224.08:275.62:550.22:192.39:3810:44Waxing Gibbous26Sat
27Sun9:504.29:065.73:280.03:002.19:3910:43Waxing Gibbous27Sun
28Mon10:194.59:465.84:01-0.13:411.89:3910:42Full Moon28Mon
29Tue10:504.710:285.74:34-0.14:241.59:4010:40Full Moon29Tue
30Wed11:234.911:135.55:080.05:101.39:4110:39Full Moon30Wed
31Thu11:585.15:430.36:001.19:4210:38Waning 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 1:15 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 98% 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 Full Moon (98% 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