Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:56 am (-0.4 ft)
Next high tide : in 4h 20m at 8:16 pm (5.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:075.64:093.58:52-1.08:012.99:1810:55Waning Gibbous1Sat
2Sun2:085.25:303.710:02-0.79:453.09:1610:56Third Quarter2Sun
3Mon3:254.76:314.011:11-0.511:312.79:1510:57Third Quarter3Mon
4Tue4:524.47:174.212:11-0.39:1410:58Third Quarter4Tue
5Wed6:114.27:534.512:492.21:03-0.19:1310:58Third Quarter5Wed
6Thu7:194.18:234.71:481.71:460.29:1310:59Waning Crescent6Thu
7Fri8:164.08:484.92:341.22:220.59:1211:00Waning Crescent7Fri
8Sat9:053.99:115.13:140.72:520.99:1111:01Waning Crescent8Sat
9Sun9:503.89:325.23:490.43:181.39:1011:02Waning Crescent9Sun
10Mon10:333.79:545.34:230.13:421.69:0911:03New Moon10Mon
11Tue11:183.610:175.44:57-0.14:062.09:0811:03New Moon11Tue
12Wed12:043.55:32-0.34:312.39:0711:04New Moon12Wed
13Thu12:553.46:09-0.34:582.59:0611:05New Moon13Thu
14Fri1:513.36:49-0.35:262.89:0611:06Waxing Crescent14Fri
15Sat3:003.27:32-0.36:003.09:0511:06Waxing Crescent15Sat
16Sun12:174.94:243.38:20-0.26:463.29:0411:07Waxing Crescent16Sun
17Mon1:014.75:283.49:16-0.18:073.39:0311:08Waxing Crescent17Mon
18Tue1:594.46:063.610:140.010:093.29:0311:09First Quarter18Tue
19Wed3:174.26:353.911:080.011:392.79:0211:10First Quarter19Wed
20Thu4:444.07:004.311:560.19:0211:10First Quarter20Thu
21Fri6:033.97:274.812:452.112:400.39:0111:11Waxing Gibbous21Fri
22Sat7:163.97:565.31:401.31:210.59:0011:12Waxing Gibbous22Sat
23Sun8:224.08:285.82:300.52:010.89:0011:12Waxing Gibbous23Sun
24Mon9:244.09:036.23:18-0.32:411.28:5911:13Waxing Gibbous24Mon
25Tue10:234.09:416.54:06-1.03:211.68:5911:14Full Moon25Tue
26Wed11:243.910:226.64:56-1.54:042.08:5811:15Full Moon26Wed
27Thu12:263.85:47-1.74:512.38:5811:15Full Moon27Thu
28Fri1:303.86:40-1.75:452.68:5711:16Waning Gibbous28Fri
29Sat2:363.87:34-1.56:462.88:5711:17Waning Gibbous29Sat
30Sun12:495.73:443.98:30-1.18:002.98:5711:17Waning Gibbous30Sun
31Mon1:495.24:484.09:29-0.79:332.98:5611:18Third 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 12:06 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 90% 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 Waxing Gibbous (90% 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