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 14m at 11:42 pm (1.5 ft)
Next high tide (tomorrow) : 5:10 am (3.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:275.16:110.46:331.29:4210:36Waning Gibbous1Wed
2Thu12:324.81:005.16:431.07:261.29:4310:34Waning Gibbous2Thu
3Fri1:274.21:345.17:131.68:251.29:4410:33Waning Gibbous3Fri
4Sat2:343.72:125.07:412.39:381.29:4510:32Third Quarter4Sat
5Sun4:153.32:584.88:122.811:031.19:4510:30Third Quarter5Sun
6Mon6:343.34:014.79:033.29:4610:29Third Quarter6Mon
7Tue8:143.65:144.712:190.911:05 AM3.49:4710:27Third Quarter7Tue
8Wed8:473.86:214.91:190.712:323.39:4810:26Third Quarter8Wed
9Thu9:103.97:165.12:060.41:283.19:4810:25Waning Crescent9Thu
10Fri9:304.08:025.32:430.22:092.89:4910:23Waning Crescent10Fri
11Sat9:504.28:415.53:140.12:452.59:5010:22Waning Crescent11Sat
12Sun10:104.39:185.63:430.03:202.19:5010:20Waning Crescent12Sun
13Mon10:314.59:555.54:100.13:561.89:5110:19New Moon13Mon
14Tue10:544.710:345.34:360.24:361.59:5210:17New Moon14Tue
15Wed11:185.011:175.05:030.55:181.29:5310:16New Moon15Wed
16Thu11:445.25:300.96:050.99:5310:14Waxing Crescent16Thu
17Fri12:064.612:145.45:571.46:570.89:5410:13Waxing Crescent17Fri
18Sat1:024.112:485.56:261.97:560.69:5510:12Waxing Crescent18Sat
19Sun2:133.71:305.66:572.49:090.59:5610:10Waxing Crescent19Sun
20Mon3:573.42:255.57:342.910:330.39:5610:09First Quarter20Mon
21Tue6:023.53:405.48:423.311:510.19:5710:07First Quarter21Tue
22Wed7:243.85:055.510:523.49:5810:06First Quarter22Wed
23Thu8:074.16:225.612:56-0.212:263.19:5910:04Waxing Gibbous23Thu
24Fri8:394.47:285.81:50-0.41:332.69:5910:03Waxing Gibbous24Fri
25Sat9:094.68:255.82:35-0.52:272.010:0010:01Waxing Gibbous25Sat
26Sun9:374.99:155.83:14-0.43:151.510:0110:00Waxing Gibbous26Sun
27Mon10:065.210:025.53:50-0.14:001.110:029:59Full Moon27Mon
28Tue10:345.410:485.24:220.34:450.810:029:57Full Moon28Tue
29Wed11:025.511:364.74:530.95:290.610:039:56Full Moon29Wed
30Thu11:305.65:221.46:140.510:049:54Waning Gibbous30Thu
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 2:26 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 neap phase. Tonight's moon is 52% 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 (52% 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