Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:53 am (0.7 ft)
Next high tide : in 1h 56m at 2:06 am (3.9 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 - Mar 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:304.48:133.212:400.29:389:05Third Quarter1Sat
2Sun5:354.68:223.41:21-0.29:369:06Waning Crescent2Sun
3Mon6:294.98:373.612:262.71:54-0.49:359:07Waning Crescent3Mon
4Tue7:145.28:553.81:122.32:24-0.69:349:08Waning Crescent4Tue
5Wed7:555.39:164.11:531.92:53-0.79:329:09Waning Crescent5Wed
6Thu8:365.49:394.42:341.53:21-0.69:319:10New Moon6Thu
7Fri9:185.210:054.83:171.03:50-0.39:309:11New Moon7Fri
8Sat10:044.910:345.14:030.64:200.19:289:11New Moon8Sat
9Sun11:544.55:520.35:500.610:2710:12Waxing Crescent9Sun
10Mon12:065.312:513.96:460.16:221.210:2610:13Waxing Crescent10Mon
11Tue12:435.51:593.47:45-0.16:551.710:2410:14Waxing Crescent11Tue
12Wed1:265.53:342.98:56-0.17:332.310:2310:15Waxing Crescent12Wed
13Thu2:195.45:402.910:22-0.28:332.710:2210:16First Quarter13Thu
14Fri3:315.27:183.211:45-0.310:362.910:2010:16First Quarter14Fri
15Sat4:565.18:083.512:54-0.610:1910:17First Quarter15Sat
16Sun6:155.18:423.812:182.71:50-0.710:1710:18Waxing Gibbous16Sun
17Mon7:235.29:124.11:302.22:35-0.810:1610:19Waxing Gibbous17Mon
18Tue8:195.29:394.32:261.73:13-0.710:1510:20Waxing Gibbous18Tue
19Wed9:075.110:054.63:121.33:45-0.410:1310:21Waxing Gibbous19Wed
20Thu9:504.910:294.83:540.94:140.010:1210:21Full Moon20Thu
21Fri10:314.610:544.94:340.64:410.410:1010:22Full Moon21Fri
22Sat11:134.311:175.05:130.45:050.910:0910:23Full Moon22Sat
23Sun11:563.911:425.05:530.35:281.310:0810:24Full Moon23Sun
24Mon12:433.56:330.25:491.810:0610:25Waning Gibbous24Mon
25Tue12:074.91:363.27:160.36:082.110:0510:25Waning Gibbous25Tue
26Wed12:354.82:482.98:060.46:242.510:0310:26Waning Gibbous26Wed
27Thu1:074.69:110.510:0210:27Waning Gibbous27Thu
28Fri1:514.410:310.610:0010:28Third Quarter28Fri
29Sat3:014.211:450.49:5910:29Third Quarter29Sat
30Sun4:354.18:143.412:420.29:5810:29Third Quarter30Sun
31Mon5:524.28:263.612:102.91:260.09:5610:30Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 5:29 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 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