Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 1:02 pm (2.5 ft)
Next high tide : in 3h 41m at 9:12 am (3.1 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:424.33:294.48:330.49:262.38:5911:28Waning Gibbous1Sun
2Mon2:413.74:124.59:091.010:512.09:0011:28Third Quarter2Mon
3Tue4:003.14:544.79:481.59:0011:27Third Quarter3Tue
4Wed5:382.95:354.912:091.610:31 AM2.09:0011:27Third Quarter4Wed
5Thu7:202.86:165.11:131.211:18 AM2.39:0111:27Third Quarter5Thu
6Fri8:383.06:575.32:030.712:092.69:0211:27Waning Crescent6Fri
7Sat9:293.27:385.52:440.31:012.79:0211:27Waning Crescent7Sat
8Sun10:073.48:175.73:20-0.11:512.79:0311:26Waning Crescent8Sun
9Mon10:403.58:565.93:55-0.42:372.79:0311:26Waning Crescent9Mon
10Tue11:133.69:346.14:29-0.73:202.69:0411:26New Moon10Tue
11Wed11:453.810:136.15:03-0.94:052.59:0411:26New Moon11Wed
12Thu12:183.95:38-0.94:522.49:0511:25New Moon12Thu
13Fri12:524.16:13-0.85:452.39:0611:25Waxing Crescent13Fri
14Sat1:274.46:47-0.66:422.19:0611:24Waxing Crescent14Sat
15Sun12:285.22:044.77:22-0.27:461.99:0711:24Waxing Crescent15Sun
16Mon1:234.62:464.97:580.49:001.79:0811:23Waxing Crescent16Mon
17Tue2:303.93:335.28:371.010:261.39:0811:23First Quarter17Tue
18Wed3:593.34:255.59:231.611:480.89:0911:22First Quarter18Wed
19Thu5:453.15:205.810:202.19:1011:22First Quarter19Thu
20Fri7:273.16:186.012:590.211:28 AM2.49:1011:21Waxing Gibbous20Fri
21Sat8:423.47:146.22:00-0.412:382.69:1111:21Waxing Gibbous21Sat
22Sun9:333.68:086.42:51-0.81:442.69:1211:20Waxing Gibbous22Sun
23Mon10:143.98:576.43:37-1.02:422.49:1211:19Waxing Gibbous23Mon
24Tue10:524.09:426.34:18-1.13:332.39:1311:19Full Moon24Tue
25Wed11:284.210:256.14:57-1.04:212.19:1411:18Full Moon25Wed
26Thu12:024.35:34-0.75:082.09:1511:17Full Moon26Thu
27Fri12:364.46:08-0.45:552.09:1511:16Waning Gibbous27Fri
28Sat1:084.56:390.06:442.09:1611:16Waning Gibbous28Sat
29Sun12:314.71:414.67:090.57:351.99:1711:15Waning Gibbous29Sun
30Mon1:164.22:154.67:361.18:341.99:1811:14Waning Gibbous30Mon
31Tue2:093.62:534.78:031.69:501.89:1811:13Third Quarter31Tue
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 11:07 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 84% 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 (84% 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