Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 39m at 11:21 am (1.1 ft)
Next high tide : 6:14 pm (5.0 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 - May 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:083.78:004.51:371.81:250.76:117:48Waning Crescent1Sat
2Sun8:043.78:214.82:181.21:560.96:107:49Waning Crescent2Sun
3Mon8:553.78:455.22:560.62:261.26:097:50Waning Crescent3Mon
4Tue9:443.79:115.63:340.12:561.56:087:51New Moon4Tue
5Wed10:333.79:415.94:13-0.53:271.86:077:51New Moon5Wed
6Thu11:263.610:166.14:56-0.94:012.16:067:52New Moon6Thu
7Fri12:243.65:42-1.14:382.36:057:53New Moon7Fri
8Sat1:243.56:32-1.35:222.66:047:54Waxing Crescent8Sat
9Sun2:313.47:25-1.26:162.76:037:55Waxing Crescent9Sun
10Mon12:315.83:413.58:22-1.17:252.96:027:56Waxing Crescent10Mon
11Tue1:315.44:453.79:23-0.88:582.96:027:56First Quarter11Tue
12Wed2:434.95:374.010:24-0.610:432.56:017:57First Quarter12Wed
13Thu4:074.46:204.411:20-0.26:007:58First Quarter13Thu
14Fri5:324.06:584.812:071.912:110.15:597:59First Quarter14Fri
15Sat6:513.87:345.21:161.212:560.65:587:59Waxing Gibbous15Sat
16Sun8:043.78:075.62:120.51:371.05:588:00Waxing Gibbous16Sun
17Mon9:073.68:395.83:01-0.12:151.55:578:01Waxing Gibbous17Mon
18Tue10:033.69:115.93:45-0.52:511.95:568:02Full Moon18Tue
19Wed10:563.69:425.94:27-0.83:252.25:568:03Full Moon19Wed
20Thu11:483.510:145.85:08-0.93:592.55:558:03Full Moon20Thu
21Fri12:383.55:48-0.94:332.75:548:04Full Moon21Fri
22Sat1:283.46:29-0.85:102.85:548:05Waning Gibbous22Sat
23Sun2:203.47:10-0.65:532.95:538:06Waning Gibbous23Sun
24Mon12:025.13:153.47:52-0.46:433.05:538:06Waning Gibbous24Mon
25Tue12:444.74:103.58:37-0.17:473.15:528:07Waning Gibbous25Tue
26Wed1:314.34:563.69:230.29:173.05:528:08Third Quarter26Wed
27Thu2:293.95:323.810:090.410:572.75:518:08Third Quarter27Thu
28Fri3:463.56:024.110:520.75:518:09Third Quarter28Fri
29Sat5:113.36:294.512:112.211:32 AM1.05:508:10Third Quarter29Sat
30Sun6:313.16:564.91:081.612:091.35:508:10Waning Crescent30Sun
31Mon7:453.27:255.31:551.012:471.65:508:11Waning Crescent31Mon
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 2:47 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 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