Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 38m at 6:46 am (-0.6 ft)
Next high tide : 1:41 pm (3.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:413.33:104.98:182.510:521.19:4210:36First Quarter1Mon
2Tue5:223.34:195.19:302.79:4310:35First Quarter2Tue
3Wed6:443.55:305.312:020.711:02 AM2.89:4410:34First Quarter3Wed
4Thu7:403.86:355.61:010.312:192.69:4410:32Waxing Gibbous4Thu
5Fri8:224.27:345.91:52-0.11:242.29:4510:31Waxing Gibbous5Fri
6Sat8:594.68:296.12:36-0.32:211.79:4610:29Waxing Gibbous6Sat
7Sun9:354.99:206.23:18-0.43:131.39:4710:28Full Moon7Sun
8Mon10:125.310:116.03:58-0.44:040.89:4710:27Full Moon8Mon
9Tue10:505.611:025.74:38-0.14:560.59:4810:25Full Moon9Tue
10Wed11:305.711:565.35:180.35:490.49:4910:24Full Moon10Wed
11Thu12:115.85:590.86:440.49:4910:22Waning Gibbous11Thu
12Fri12:534.812:555.76:411.37:420.59:5010:21Waning Gibbous12Fri
13Sat1:564.31:425.57:251.98:470.79:5110:19Waning Gibbous13Sat
14Sun3:133.92:375.28:172.410:030.89:5210:18Third Quarter14Sun
15Mon4:463.73:445.09:272.711:200.89:5210:17Third Quarter15Mon
16Tue6:143.84:584.810:582.99:5310:15Third Quarter16Tue
17Wed7:204.06:064.812:270.712:162.89:5410:14Third Quarter17Wed
18Thu8:054.17:054.91:220.71:162.59:5510:12Waning Crescent18Thu
19Fri8:384.37:535.02:060.62:022.29:5510:11Waning Crescent19Fri
20Sat9:054.58:355.02:410.62:391.99:5610:09Waning Crescent20Sat
21Sun9:284.69:115.03:110.73:131.79:5710:08Waning Crescent21Sun
22Mon9:514.89:475.03:380.83:471.49:5810:06New Moon22Mon
23Tue10:154.910:224.94:030.94:211.29:5810:05New Moon23Tue
24Wed10:395.111:004.74:291.14:571.09:5910:03New Moon24Wed
25Thu11:055.211:414.54:551.45:350.910:0010:02New Moon25Thu
26Fri11:345.35:231.76:170.810:0010:01Waxing Crescent26Fri
27Sat12:264.212:055.35:522.07:030.710:019:59Waxing Crescent27Sat
28Sun1:193.912:425.26:252.37:560.810:029:58Waxing Crescent28Sun
29Mon2:243.71:275.27:042.69:010.810:039:56Waxing Crescent29Mon
30Tue3:503.62:265.07:592.910:150.710:049:55First Quarter30Tue
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 10:13 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 94% 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 Waning Gibbous (94% 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