Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:09 pm (2.2 ft)
Next high tide : in 2h 21m at 12:27 pm (4.2 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:07 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:574.07:07-0.26:502.68:5911:28Waxing Crescent1Sat
2Sun12:304.82:364.17:400.17:472.58:5911:28Waxing Crescent2Sun
3Mon1:164.43:164.38:140.48:582.49:0011:27Waxing Crescent3Mon
4Tue2:133.94:004.68:530.810:212.19:0011:27First Quarter4Tue
5Wed3:303.44:454.99:391.211:391.59:0111:27First Quarter5Wed
6Thu5:043.25:315.310:311.59:0111:27First Quarter6Thu
7Fri6:353.16:205.712:460.911:29 AM1.89:0211:27Waxing Gibbous7Fri
8Sat7:553.37:106.11:430.212:282.09:0211:27Waxing Gibbous8Sat
9Sun8:573.68:006.52:35-0.51:292.19:0311:26Waxing Gibbous9Sun
10Mon9:483.88:506.73:22-1.02:272.19:0311:26Waxing Gibbous10Mon
11Tue10:354.19:386.84:08-1.33:222.09:0411:26Full Moon11Tue
12Wed11:224.310:276.64:54-1.54:181.99:0411:25Full Moon12Wed
13Thu12:074.55:38-1.45:141.89:0511:25Full Moon13Thu
14Fri12:534.66:22-1.16:131.89:0611:25Waning Gibbous14Fri
15Sat12:095.81:384.87:05-0.77:131.89:0611:24Waning Gibbous15Sat
16Sun1:025.12:254.97:47-0.18:191.89:0711:24Waning Gibbous16Sun
17Mon2:004.43:154.98:300.59:361.79:0811:23Third Quarter17Mon
18Tue3:083.84:085.09:161.111:001.69:0811:23Third Quarter18Tue
19Wed4:353.35:005.010:081.69:0911:22Third Quarter19Wed
20Thu6:103.15:515.112:171.211:04 AM2.19:1011:22Third Quarter20Thu
21Fri7:383.26:395.21:210.912:012.49:1011:21Waning Crescent21Fri
22Sat8:423.37:235.42:120.512:562.59:1111:20Waning Crescent22Sat
23Sun9:273.58:045.52:540.21:452.69:1211:20Waning Crescent23Sun
24Mon10:013.68:415.63:290.02:272.59:1211:19Waning Crescent24Mon
25Tue10:323.79:155.74:01-0.13:062.49:1311:18New Moon25Tue
26Wed11:023.99:495.74:31-0.23:432.39:1411:18New Moon26Wed
27Thu11:314.010:235.65:01-0.24:222.39:1511:17New Moon27Thu
28Fri12:014.15:31-0.25:022.29:1511:16New Moon28Fri
29Sat12:324.36:01-0.15:462.19:1611:15Waxing Crescent29Sat
30Sun1:044.46:310.16:342.09:1711:15Waxing Crescent30Sun
31Mon12:194.81:384.67:020.57:272.09:1811:14Waxing Crescent31Mon
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 2:48 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 spring phase. Tonight's moon is 2% 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 New Moon (2% 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