Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2m at 10:20 pm (2.1 ft)
Next high tide (tomorrow) : 3:26 am (3.3 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 - Sep 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:294.48:415.92:59-0.42:392.19:4210:36Waxing Gibbous1Sun
2Mon9:584.69:255.83:36-0.33:241.89:4310:35Full Moon2Mon
3Tue10:264.810:075.54:10-0.14:061.59:4410:34Full Moon3Tue
4Wed10:534.910:475.24:400.34:461.39:4410:32Full Moon4Wed
5Thu11:195.011:284.85:080.75:271.29:4510:31Full Moon5Thu
6Fri11:455.15:341.16:081.19:4610:29Waning Gibbous6Fri
7Sat12:114.412:125.15:591.66:511.19:4710:28Waning Gibbous7Sat
8Sun12:574.012:405.16:232.07:381.29:4710:27Waning Gibbous8Sun
9Mon1:533.61:125.06:462.48:361.39:4810:25Waning Gibbous9Mon
10Tue3:133.31:524.87:092.89:531.39:4910:24Third Quarter10Tue
11Wed5:243.22:484.77:343.111:161.29:4910:22Third Quarter11Wed
12Thu4:074.79:5010:21Third Quarter12Thu
13Fri8:003.65:234.812:230.911:20 AM3.39:5110:19Third Quarter13Fri
14Sat8:203.86:265.01:130.612:323.09:5210:18Waning Crescent14Sat
15Sun8:404.07:205.31:530.31:252.69:5210:17Waning Crescent15Sun
16Mon9:004.38:095.52:280.22:112.29:5310:15Waning Crescent16Mon
17Tue9:224.68:555.62:590.12:551.69:5410:14Waning Crescent17Tue
18Wed9:475.09:415.53:300.23:391.19:5510:12New Moon18Wed
19Thu10:155.410:295.34:010.44:250.69:5510:11New Moon19Thu
20Fri10:465.811:225.04:340.75:150.29:5610:09New Moon20Fri
21Sat11:216.05:081.26:080.09:5710:08Waxing Crescent21Sat
22Sun12:194.612:006.25:441.77:05-0.19:5810:06Waxing Crescent22Sun
23Mon1:244.112:456.16:232.28:08-0.19:5810:05Waxing Crescent23Mon
24Tue2:433.81:385.97:092.69:220.09:5910:03Waxing Crescent24Tue
25Wed4:223.62:455.68:123.010:420.110:0010:02First Quarter25Wed
26Thu5:553.84:095.39:563.211:540.010:0110:01First Quarter26Thu
27Fri7:014.15:325.211:403.010:019:59First Quarter27Fri
28Sat7:464.36:435.212:540.012:552.610:029:58Waxing Gibbous28Sat
29Sun8:214.67:445.21:440.11:532.110:039:56Waxing Gibbous29Sun
30Mon8:514.98:355.12:250.22:401.610:049:55Waxing Gibbous30Mon
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 12:53 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