Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 10:20 pm (2.1 ft)
Next high tide : in 6h 30m at 3:57 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:314.78:354.21:391.72:12-0.15:486:24Waning Crescent1Sat
2Sun9:114.89:594.53:151.33:42-0.16:477:25Waning Crescent2Sun
3Mon9:524.810:254.83:520.94:120.16:457:26New Moon3Mon
4Tue10:344.710:535.04:320.54:430.36:447:27New Moon4Tue
5Wed11:214.511:255.25:150.25:150.76:437:27New Moon5Wed
6Thu12:134.26:02-0.15:491.16:417:28Waxing Crescent6Thu
7Fri12:005.41:113.86:53-0.36:271.66:407:29Waxing Crescent7Fri
8Sat12:405.42:223.57:50-0.37:092.06:397:30Waxing Crescent8Sat
9Sun1:265.33:513.38:57-0.38:052.56:377:31Waxing Crescent9Sun
10Mon2:245.15:273.410:14-0.39:342.76:367:31First Quarter10Mon
11Tue3:404.86:403.711:28-0.411:182.66:357:32First Quarter11Tue
12Wed5:034.77:334.012:33-0.56:337:33First Quarter12Wed
13Thu6:204.78:134.312:402.21:28-0.56:327:34Waxing Gibbous13Thu
14Fri7:284.88:484.61:441.72:15-0.46:317:35Waxing Gibbous14Fri
15Sat8:254.89:194.92:361.22:56-0.26:297:36Waxing Gibbous15Sat
16Sun9:164.79:495.13:210.73:320.16:287:36Waxing Gibbous16Sun
17Mon10:034.610:185.24:040.34:050.46:277:37Full Moon17Mon
18Tue10:494.310:465.24:450.04:360.96:267:38Full Moon18Tue
19Wed11:354.111:145.25:26-0.15:051.36:247:39Full Moon19Wed
20Thu12:233.86:07-0.25:351.76:237:40Waning Gibbous20Thu
21Fri1:153.56:48-0.16:042.16:227:40Waning Gibbous21Fri
22Sat12:134.92:143.37:320.06:352.56:217:41Waning Gibbous22Sat
23Sun12:464.73:323.28:220.27:122.86:197:42Waning Gibbous23Sun
24Mon1:244.45:053.29:220.38:093.06:187:43Third Quarter24Mon
25Tue2:164.16:183.410:290.410:103.16:177:44Third Quarter25Tue
26Wed3:333.97:033.611:310.411:502.96:167:44Third Quarter26Wed
27Thu4:593.87:333.812:240.46:157:45Third Quarter27Thu
28Fri6:103.97:584.112:522.51:070.36:147:46Third Quarter28Fri
29Sat7:114.08:224.41:392.01:450.36:137:47Waning Crescent29Sat
30Sun8:034.18:464.72:191.42:200.46:127:48Waning Crescent30Sun
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 7:08 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 61% 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 (61% 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