Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 34m at 6:13 am (-0.7 ft)
Next high tide : 1:08 pm (3.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:483.87:535.81:560.51:230.98:5611:19Waning Crescent1Wed
2Thu8:533.98:346.22:47-0.22:101.28:5611:19Waning Crescent2Thu
3Fri9:514.09:156.53:36-0.82:571.48:5511:20New Moon3Fri
4Sat10:474.19:586.64:24-1.23:441.78:5511:20New Moon4Sat
5Sun11:424.110:426.45:12-1.44:331.98:5511:21New Moon5Sun
6Mon12:384.16:01-1.45:262.18:5511:21New Moon6Mon
7Tue1:334.16:49-1.36:222.38:5511:22Waxing Crescent7Tue
8Wed12:175.72:304.17:37-0.97:222.58:5511:22Waxing Crescent8Wed
9Thu1:075.23:284.28:26-0.58:322.58:5511:23Waxing Crescent9Thu
10Fri2:024.64:254.39:17-0.19:562.58:5411:23First Quarter10Fri
11Sat3:084.05:174.410:100.411:202.28:5411:24First Quarter11Sat
12Sun4:253.66:024.611:010.88:5411:24First Quarter12Sun
13Mon5:463.36:424.812:321.811:48 AM1.28:5411:25First Quarter13Mon
14Tue7:023.27:175.01:301.412:321.58:5511:25Waxing Gibbous14Tue
15Wed8:083.27:495.22:160.91:121.88:5511:25Waxing Gibbous15Wed
16Thu9:013.38:195.42:550.51:492.08:5511:26Waxing Gibbous16Thu
17Fri9:463.48:495.53:300.12:242.18:5511:26Waxing Gibbous17Fri
18Sat10:273.59:195.64:04-0.22:592.38:5511:26Full Moon18Sat
19Sun11:083.69:515.74:38-0.43:352.48:5511:27Full Moon19Sun
20Mon11:493.710:245.75:14-0.64:122.48:5511:27Full Moon20Mon
21Tue12:303.75:50-0.74:532.58:5611:27Full Moon21Tue
22Wed1:123.86:28-0.75:392.68:5611:27Waning Gibbous22Wed
23Thu1:553.97:06-0.66:322.68:5611:27Waning Gibbous23Thu
24Fri12:235.22:414.07:46-0.47:322.68:5611:27Waning Gibbous24Fri
25Sat1:134.83:294.38:29-0.28:462.58:5711:28Waning Gibbous25Sat
26Sun2:144.34:184.59:170.210:152.28:5711:28Third Quarter26Sun
27Mon3:323.95:054.910:080.611:371.78:5711:28Third Quarter27Mon
28Tue5:023.55:525.311:021.08:5811:28Third Quarter28Tue
29Wed6:303.46:395.712:471.011:57 AM1.38:5811:28Waning Crescent29Wed
30Thu7:503.57:266.11:480.312:511.68:5911:28Waning Crescent30Thu
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 9:40 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 97% 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 (97% 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