Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:14 pm (2.5 ft)
Next high tide : in 6h 41m at 11:03 am (3.8 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 9:05 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:274.86:060.56:211.59:4310:36Waxing Crescent1Sat
2Sun12:164.912:594.96:370.97:141.49:4310:34Waxing Crescent2Sun
3Mon1:094.41:365.17:091.48:171.29:4410:33Waxing Crescent3Mon
4Tue2:153.92:215.27:451.99:341.09:4510:31First Quarter4Tue
5Wed3:463.53:175.38:302.410:580.79:4610:30First Quarter5Wed
6Thu5:373.44:265.49:412.89:4610:29First Quarter6Thu
7Fri7:103.65:375.612:130.311:13 AM3.09:4710:27First Quarter7Fri
8Sat8:103.96:455.81:17-0.112:342.89:4810:26Waxing Gibbous8Sat
9Sun8:524.27:456.12:11-0.51:412.59:4810:24Waxing Gibbous9Sun
10Mon9:284.58:396.22:57-0.62:362.19:4910:23Waxing Gibbous10Mon
11Tue10:024.79:286.13:38-0.63:251.79:5010:21Full Moon11Tue
12Wed10:354.910:155.94:17-0.54:121.49:5110:20Full Moon12Wed
13Thu11:085.111:015.64:54-0.14:581.29:5110:19Full Moon13Thu
14Fri11:405.211:485.15:280.35:451.09:5210:17Full Moon14Fri
15Sat12:135.26:020.96:321.09:5310:16Waning Gibbous15Sat
16Sun12:374.612:465.16:341.47:221.09:5410:14Waning Gibbous16Sun
17Mon1:324.11:195.07:052.08:171.19:5410:13Waning Gibbous17Mon
18Tue2:403.71:574.87:372.59:251.29:5510:11Waning Gibbous18Tue
19Wed4:183.42:454.78:173.010:451.29:5610:10Third Quarter19Wed
20Thu6:133.53:534.59:343.311:591.09:5610:08Third Quarter20Thu
21Fri7:343.75:094.511:243.49:5710:07Third Quarter21Fri
22Sat8:143.96:154.712:580.812:383.29:5810:06Third Quarter22Sat
23Sun8:414.17:104.91:440.61:282.99:5910:04Waning Crescent23Sun
24Mon9:044.27:565.12:220.42:082.59:5910:03Waning Crescent24Mon
25Tue9:254.48:385.32:540.32:442.210:0010:01Waning Crescent25Tue
26Wed9:484.69:175.43:240.33:201.810:0110:00Waning Crescent26Wed
27Thu10:114.99:575.43:530.33:571.410:029:58New Moon27Thu
28Fri10:365.110:395.24:220.54:381.110:029:57New Moon28Fri
29Sat11:045.311:264.94:510.85:220.710:039:56New Moon29Sat
30Sun11:355.55:221.26:100.510:049:54Waxing 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 1:08 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 spring phase. Tonight's moon is 1% 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 (1% 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