Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:21 am (1.1 ft)
Next high tide : in 1h 24m at 5:21 am (3.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:48 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:015.18:533.41:48-0.37:015:31Waning Crescent1Mon
2Tue6:505.29:183.512:372.82:25-0.57:015:32Waning Crescent2Tue
3Wed7:315.49:403.61:242.72:57-0.67:005:33Waning Crescent3Wed
4Thu8:085.510:023.62:012.53:27-0.76:595:34New Moon4Thu
5Fri8:415.510:243.72:362.33:54-0.66:585:35New Moon5Fri
6Sat9:145.410:473.93:112.14:20-0.56:575:36New Moon6Sat
7Sun9:475.211:114.13:481.94:45-0.46:565:37New Moon7Sun
8Mon10:224.911:364.24:291.85:10-0.16:555:38Waxing Crescent8Mon
9Tue10:594.55:121.65:330.36:545:39Waxing Crescent9Tue
10Wed12:014.411:43 AM4.06:001.55:570.86:545:40Waxing Crescent10Wed
11Thu12:304.612:363.46:561.46:201.36:535:41Waxing Crescent11Thu
12Fri1:044.81:532.88:081.26:441.86:525:42First Quarter12Fri
13Sat1:484.94:042.59:380.87:132.36:505:43First Quarter13Sat
14Sun2:475.111:030.36:495:44First Quarter14Sun
15Mon3:575.37:363.012:11-0.36:485:45First Quarter15Mon
16Tue5:085.68:073.41:06-0.86:475:46Waxing Gibbous16Tue
17Wed6:145.98:363.71:52-1.26:465:47Waxing Gibbous17Wed
18Thu7:136.29:064.01:022.22:33-1.56:455:48Waxing Gibbous18Thu
19Fri8:056.39:384.31:591.83:12-1.56:445:49Full Moon19Fri
20Sat8:556.110:114.62:511.33:49-1.26:435:50Full Moon20Sat
21Sun9:435.810:454.93:430.94:25-0.86:425:51Full Moon21Sun
22Mon10:335.211:195.14:360.74:59-0.36:405:52Waning Gibbous22Mon
23Tue11:244.611:555.25:290.55:320.46:395:52Waning Gibbous23Tue
24Wed12:193.96:250.56:021.16:385:53Waning Gibbous24Wed
25Thu12:325.11:263.27:260.66:321.76:375:54Waning Gibbous25Thu
26Fri1:134.93:042.88:410.66:592.36:365:55Third Quarter26Fri
27Sat2:034.710:070.66:345:56Third Quarter27Sat
28Sun3:104.57:353.111:260.49:503.06:335:57Third Quarter28Sun
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 8:21 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 35% 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 (35% 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