Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 56m at 9:30 am (1.3 ft)
Next high tide : 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:133.15:544.912:241.610:57 AM2.36:128:06First Quarter1Sat
2Sun7:373.26:395.11:211.111:55 AM2.56:128:05Waxing Gibbous2Sun
3Mon8:353.47:225.42:070.712:502.66:138:04Waxing Gibbous3Mon
4Tue9:163.68:035.62:460.31:412.56:148:03Waxing Gibbous4Tue
5Wed9:513.88:435.93:23-0.12:272.46:158:02Waxing Gibbous5Wed
6Thu10:254.09:236.13:58-0.43:112.36:168:01Full Moon6Thu
7Fri10:594.210:046.24:34-0.63:552.16:168:00Full Moon7Fri
8Sat11:354.410:486.15:11-0.74:431.96:177:59Full Moon8Sat
9Sun12:134.65:49-0.65:341.86:187:58Waning Gibbous9Sun
10Mon12:524.86:27-0.46:291.66:197:57Waning Gibbous10Mon
11Tue12:265.41:355.07:070.07:301.56:197:56Waning Gibbous11Tue
12Wed1:234.82:215.17:490.68:411.46:207:55Waning Gibbous12Wed
13Thu2:304.23:145.38:351.110:031.26:217:54Third Quarter13Thu
14Fri3:573.74:145.49:311.711:270.96:227:53Third Quarter14Fri
15Sat5:353.55:165.610:392.16:227:52Third Quarter15Sat
16Sun7:053.66:175.712:410.411:50 AM2.36:237:50Waning Crescent16Sun
17Mon8:153.87:145.91:430.012:582.46:247:49Waning Crescent17Mon
18Tue9:064.18:076.02:35-0.31:582.36:257:48Waning Crescent18Tue
19Wed9:474.38:536.03:19-0.42:482.16:257:47Waning Crescent19Wed
20Thu10:234.49:356.03:59-0.43:332.06:267:46New Moon20Thu
21Fri10:574.510:155.84:35-0.34:151.96:277:44New Moon21Fri
22Sat11:294.510:535.55:09-0.14:551.86:287:43New Moon22Sat
23Sun12:014.65:410.25:361.76:287:42New Moon23Sun
24Mon12:324.66:110.56:181.76:297:40Waxing Crescent24Mon
25Tue12:124.81:034.66:400.97:021.76:307:39Waxing Crescent25Tue
26Wed12:544.41:364.67:091.37:511.86:317:38Waxing Crescent26Wed
27Thu1:423.92:134.57:381.88:521.86:317:37Waxing Crescent27Thu
28Fri2:443.52:574.58:112.210:101.76:327:35First Quarter28Fri
29Sat4:153.33:534.58:562.511:291.56:337:34First Quarter29Sat
30Sun5:573.24:554.710:082.86:347:33First Quarter30Sun
31Mon7:193.45:544.912:341.211:28 AM2.96:347:31First Quarter31Mon
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 1:02 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 neap phase. Tonight's moon is 50% 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 minimum.

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 (50% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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