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 2h 40m 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 - Jul 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:383.710:165.75:04-0.54:052.48:5911:28Full Moon1Sat
2Sun12:163.85:39-0.64:462.58:5911:28Full Moon2Sun
3Mon12:543.96:14-0.65:312.59:0011:27Waning Gibbous3Mon
4Tue1:334.06:50-0.56:212.59:0011:27Waning Gibbous4Tue
5Wed12:125.22:144.27:27-0.37:182.59:0111:27Waning Gibbous5Wed
6Thu12:594.82:584.48:060.08:252.49:0111:27Waning Gibbous6Thu
7Fri1:564.33:454.68:480.49:482.19:0211:27Third Quarter7Fri
8Sat3:093.84:345.09:370.811:131.69:0311:27Third Quarter8Sat
9Sun4:403.55:235.310:311.29:0311:26Third Quarter9Sun
10Mon6:123.36:135.712:271.011:29 AM1.59:0411:26Third Quarter10Mon
11Tue7:363.47:046.11:300.312:271.89:0411:26Waning Crescent11Tue
12Wed8:433.67:546.42:25-0.31:261.99:0511:25Waning Crescent12Wed
13Thu9:383.98:426.63:14-0.82:232.09:0611:25Waning Crescent13Thu
14Fri10:274.19:296.64:00-1.13:162.09:0611:24New Moon14Fri
15Sat11:134.210:156.54:44-1.24:072.09:0711:24New Moon15Sat
16Sun11:584.411:016.25:28-1.14:592.09:0711:24New Moon16Sun
17Mon12:424.46:10-0.95:522.09:0811:23Waxing Crescent17Mon
18Tue1:264.56:50-0.66:462.09:0911:23Waxing Crescent18Tue
19Wed12:345.22:094.57:29-0.17:432.19:0911:22Waxing Crescent19Wed
20Thu1:224.62:554.68:070.48:482.19:1011:21Waxing Crescent20Thu
21Fri2:174.03:434.68:471.010:062.09:1111:21First Quarter21Fri
22Sat3:263.54:334.79:301.511:261.89:1211:20First Quarter22Sat
23Sun4:533.25:214.810:201.99:1211:19First Quarter23Sun
24Mon6:263.16:084.912:361.411:14 AM2.29:1311:19First Quarter24Mon
25Tue7:483.26:525.11:331.012:092.49:1411:18Waxing Gibbous25Tue
26Wed8:443.37:335.32:180.61:012.59:1411:17Waxing Gibbous26Wed
27Thu9:253.58:125.52:560.31:492.59:1511:17Waxing Gibbous27Thu
28Fri9:593.78:485.73:300.02:312.49:1611:16Waxing Gibbous28Fri
29Sat10:313.89:245.84:03-0.23:122.39:1711:15Full Moon29Sat
30Sun11:034.010:015.94:36-0.43:522.29:1711:14Full Moon30Sun
31Mon11:364.210:395.85:10-0.54:352.19:1811:13Full Moon31Mon
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