Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 1:11 pm (2.6 ft)
Next high tide : in 1h 07m at 9:30 am (3.4 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 9:04 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:493.911:12 AM5.05:232.76:35-0.110:178:08Waxing Crescent1Fri
2Sat1:323.911:52 AM4.66:142.87:120.210:188:09Waxing Crescent2Sat
3Sun2:184.012:374.17:162.87:510.610:188:10Waxing Crescent3Sun
4Mon3:054.11:363.68:412.78:331.010:188:11First Quarter4Mon
5Tue3:494.23:023.210:142.49:201.310:188:12First Quarter5Tue
6Wed4:304.54:393.011:271.910:081.710:188:13First Quarter6Wed
7Thu5:084.86:073.012:221.310:188:13First Quarter7Thu
8Fri5:455.17:173.11:070.710:188:14Waxing Gibbous8Fri
9Sat6:225.58:093.41:460.110:188:15Waxing Gibbous9Sat
10Sun7:005.88:543.612:332.22:24-0.510:188:16Waxing Gibbous10Sun
11Mon7:396.19:363.81:202.23:02-0.910:188:17Waxing Gibbous11Mon
12Tue8:206.410:183.92:062.23:43-1.310:178:18Full Moon12Tue
13Wed9:036.511:014.12:532.24:24-1.410:178:19Full Moon13Wed
14Thu9:486.411:454.23:432.15:07-1.410:178:20Full Moon14Thu
15Fri10:376.14:372.15:50-1.210:178:21Waning Gibbous15Fri
16Sat12:304.311:29 AM5.65:362.06:34-0.810:168:22Waning Gibbous16Sat
17Sun1:184.512:265.06:421.97:20-0.310:168:23Waning Gibbous17Sun
18Mon2:094.71:334.38:001.88:090.310:168:24Third Quarter18Mon
19Tue3:044.92:583.69:291.59:050.910:158:25Third Quarter19Tue
20Wed3:595.14:363.310:541.010:051.410:158:26Third Quarter20Wed
21Thu4:535.46:123.212:070.510:158:27Third Quarter21Thu
22Fri5:455.67:303.41:06-0.110:148:28Waning Crescent22Fri
23Sat6:345.78:263.612:072.11:55-0.510:148:29Waning Crescent23Sat
24Sun7:185.89:103.71:012.22:37-0.710:138:30Waning Crescent24Sun
25Mon7:585.89:483.81:492.23:15-0.810:138:31Waning Crescent25Mon
26Tue8:355.810:233.92:302.23:50-0.810:128:32New Moon26Tue
27Wed9:115.710:553.93:082.24:24-0.710:118:33New Moon27Wed
28Thu9:455.511:273.93:452.24:55-0.610:118:34New Moon28Thu
29Fri10:205.211:583.94:232.15:26-0.310:108:35New Moon29Fri
30Sat10:554.95:032.15:550.010:098:36Waxing Crescent30Sat
31Sun12:304.011:32 AM4.45:472.16:240.310:098:37Waxing Crescent31Sun
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 11:20 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 11% 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 Waning Crescent (11% 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