Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:42 pm (1.5 ft)
Next high tide : in 4h 14m at 4:35 pm (5.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:083.27:125.81:560.412:322.18:5911:28Waning Crescent1Fri
2Sat9:213.37:525.92:47-0.11:202.58:5911:28Waning Crescent2Sat
3Sun10:183.48:305.93:31-0.52:072.79:0011:27Waning Crescent3Sun
4Mon11:053.59:065.94:11-0.72:492.99:0011:27New Moon4Mon
5Tue11:453.69:425.94:48-0.73:292.99:0111:27New Moon5Tue
6Wed12:213.65:24-0.74:072.99:0111:27New Moon6Wed
7Thu12:553.65:58-0.64:472.99:0211:27New Moon7Thu
8Fri1:283.76:31-0.55:292.89:0211:26Waxing Crescent8Fri
9Sat2:013.77:03-0.36:162.89:0311:26Waxing Crescent9Sat
10Sun12:075.12:343.87:34-0.17:072.89:0411:26Waxing Crescent10Sun
11Mon12:464.73:094.08:030.28:082.79:0411:26Waxing Crescent11Mon
12Tue1:304.23:434.28:330.69:252.69:0511:25First Quarter12Tue
13Wed2:263.74:174.59:041.110:512.29:0511:25First Quarter13Wed
14Thu3:493.24:534.89:391.69:0611:24First Quarter14Thu
15Fri5:342.95:315.212:061.610:20 AM2.09:0711:24First Quarter15Fri
16Sat7:212.96:145.61:090.911:10 AM2.49:0711:23Waxing Gibbous16Sat
17Sun8:433.17:016.02:020.212:082.79:0811:23Waxing Gibbous17Sun
18Mon9:383.47:516.42:50-0.51:112.89:0911:22Waxing Gibbous18Mon
19Tue10:233.68:426.73:35-1.12:122.79:0911:22Waxing Gibbous19Tue
20Wed11:043.89:326.94:20-1.53:102.69:1011:21Full Moon20Wed
21Thu11:454.010:226.95:05-1.74:072.49:1111:21Full Moon21Thu
22Fri12:264.25:49-1.65:052.29:1211:20Full Moon22Fri
23Sat1:074.46:32-1.46:072.19:1211:19Waning Gibbous23Sat
24Sun12:076.11:494.67:14-0.97:121.99:1311:19Waning Gibbous24Sun
25Mon1:035.42:334.97:54-0.38:231.89:1411:18Waning Gibbous25Mon
26Tue2:054.53:195.18:350.59:461.69:1411:17Third Quarter26Tue
27Wed3:233.84:085.39:181.211:141.29:1511:17Third Quarter27Wed
28Thu5:023.24:595.410:061.99:1611:16Third Quarter28Thu
29Fri6:553.15:505.512:330.711:03 AM2.59:1711:15Third Quarter29Fri
30Sat8:343.36:425.61:400.312:082.89:1711:14Waning Crescent30Sat
31Sun9:333.57:325.62:320.01:123.09:1811:13Waning 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 8:08 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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