Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:56 am (-0.4 ft)
Next high tide : in 41m at 8:16 pm (5.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:396.011:314.84:311.05:180.110:049:54Full Moon1Wed
2Thu11:145.95:071.56:050.110:059:52Waning Gibbous2Thu
3Fri12:244.511:50 AM5.85:442.06:540.210:069:51Waning Gibbous3Fri
4Sat1:204.112:295.56:212.47:450.410:079:49Waning Gibbous4Sat
5Sun2:253.81:115.27:022.88:430.710:079:48Waning Gibbous5Sun
6Mon3:473.72:014.87:533.19:510.910:089:47Third Quarter6Mon
7Tue5:153.73:084.59:163.311:010.910:099:45Third Quarter7Tue
8Wed6:213.94:304.311:013.210:109:44Third Quarter8Wed
9Thu7:074.15:434.312:011.012:162.910:119:43Third Quarter9Thu
10Fri7:394.36:454.412:500.91:102.510:119:41Waning Crescent10Fri
11Sat8:054.57:374.51:291.01:522.110:129:40Waning Crescent11Sat
12Sun8:294.88:224.62:021.02:301.610:139:39Waning Crescent12Sun
13Mon8:525.09:044.62:321.13:051.210:149:37Waning Crescent13Mon
14Tue9:155.39:454.63:001.23:410.810:159:36New Moon14Tue
15Wed9:405.610:274.53:281.44:180.410:159:35New Moon15Wed
16Thu10:085.811:134.43:571.74:590.110:169:33New Moon16Thu
17Fri10:406.04:291.95:43-0.110:179:32New Moon17Fri
18Sat12:044.211:15 AM6.05:032.26:31-0.210:189:31Waxing Crescent18Sat
19Sun1:004.011:56 AM5.95:432.57:23-0.210:199:30Waxing Crescent19Sun
20Mon2:043.912:455.76:302.88:22-0.110:209:28Waxing Crescent20Mon
21Tue3:203.81:445.47:323.09:280.010:219:27First Quarter21Tue
22Wed4:384.02:585.19:013.110:360.110:219:26First Quarter22Wed
23Thu5:404.34:264.810:472.911:380.210:229:25First Quarter23Thu
24Fri6:294.65:484.712:102.310:239:24First Quarter24Fri
25Sat7:115.07:014.712:320.41:151.710:249:23Waxing Gibbous25Sat
26Sun7:495.48:054.71:200.62:101.010:259:21Waxing Gibbous26Sun
27Mon8:245.89:014.72:030.82:580.410:269:20Waxing Gibbous27Mon
28Tue8:586.19:534.62:431.23:430.010:279:19Full Moon28Tue
29Wed9:316.210:424.53:201.54:26-0.310:289:18Full Moon29Wed
30Thu10:046.211:324.33:551.95:08-0.410:299:17Full Moon30Thu
31Fri10:376.14:312.25:50-0.310:309:16Full Moon31Fri
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 12:06 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 90% 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 Waxing Gibbous (90% 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