Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 2:38 am (0.2 ft)
Next high tide : in 1h 53m at 7:06 pm (5.4 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 8:56 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:304.99:384.83:170.93:371.310:059:53Full Moon1Sun
2Mon9:505.110:154.63:411.24:101.010:069:51Full Moon2Mon
3Tue10:105.310:534.44:031.54:440.810:069:50Full Moon3Tue
4Wed10:325.411:354.24:251.85:200.610:079:48Full Moon4Wed
5Thu10:565.54:482.15:590.510:089:47Full Moon5Thu
6Fri12:213.911:23 AM5.55:122.46:410.510:099:46Waning Gibbous6Fri
7Sat1:153.711:54 AM5.45:362.87:300.510:099:44Waning Gibbous7Sat
8Sun2:243.412:325.36:033.08:280.610:109:43Waning Gibbous8Sun
9Mon4:083.41:215.26:363.39:390.610:119:42Third Quarter9Mon
10Tue5:473.52:295.07:493.510:500.510:129:40Third Quarter10Tue
11Wed6:333.83:594.910:103.411:500.310:139:39Third Quarter11Wed
12Thu7:034.15:234.911:463.010:149:38Third Quarter12Thu
13Fri7:304.56:355.012:400.212:532.310:149:36Waning Crescent13Fri
14Sat7:584.97:405.11:240.31:491.610:159:35Waning Crescent14Sat
15Sun8:275.58:395.12:040.42:400.810:169:34Waning Crescent15Sun
16Mon8:596.09:355.02:410.73:290.110:179:32New Moon16Mon
17Tue9:326.410:304.83:181.14:17-0.410:189:31New Moon17Tue
18Wed10:086.611:274.53:551.55:07-0.810:199:30New Moon18Wed
19Thu10:466.74:331.95:59-0.910:209:29New Moon19Thu
20Fri12:284.311:28 AM6.55:142.46:53-0.710:209:28Waxing Crescent20Fri
21Sat1:344.012:136.16:002.87:49-0.510:219:26Waxing Crescent21Sat
22Sun2:493.91:045.76:533.18:51-0.110:229:25Waxing Crescent22Sun
23Mon4:143.92:055.18:043.39:590.210:239:24First Quarter23Mon
24Tue5:284.03:234.79:523.311:050.410:249:23First Quarter24Tue
25Wed6:224.24:484.411:333.110:259:22First Quarter25Wed
26Thu7:024.46:034.212:000.612:432.610:269:21First Quarter26Thu
27Fri7:334.67:074.212:470.81:342.110:279:20Waxing Gibbous27Fri
28Sat7:584.98:014.21:251.02:161.610:289:19Waxing Gibbous28Sat
29Sun8:205.18:484.11:571.32:521.210:289:17Waxing Gibbous29Sun
30Mon8:415.39:314.12:241.63:250.810:299:16Waxing Gibbous30Mon
31Tue9:035.610:134.02:491.93:580.410:309:15Full Moon31Tue
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 10:52 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 76% 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 Waxing Gibbous (76% 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