Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 10:20 pm (2.1 ft)
Next high tide : in 6h 31m at 3:57 pm (4.6 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:493.65:54-1.04:372.88:5911:28Full Moon1Sun
2Mon1:253.76:31-1.05:282.88:5911:28Waning Gibbous2Mon
3Tue2:013.97:07-0.96:262.79:0011:28Waning Gibbous3Tue
4Wed12:195.42:384.17:44-0.67:312.69:0011:27Waning Gibbous4Wed
5Thu1:114.93:164.48:21-0.28:482.39:0111:27Waning Gibbous5Thu
6Fri2:134.23:574.89:000.410:181.99:0111:27Third Quarter6Fri
7Sat3:353.64:405.29:421.011:431.29:0211:27Third Quarter7Sat
8Sun5:173.15:265.610:291.69:0211:27Third Quarter8Sun
9Mon7:033.06:146.012:550.511:22 AM2.19:0311:26Waning Crescent9Mon
10Tue8:343.27:056.31:57-0.212:212.59:0311:26Waning Crescent10Tue
11Wed9:383.47:566.52:51-0.81:242.79:0411:26Waning Crescent11Wed
12Thu10:283.68:466.63:39-1.22:242.79:0511:25Waning Crescent12Thu
13Fri11:123.89:346.64:24-1.43:202.69:0511:25New Moon13Fri
14Sat11:523.910:206.45:08-1.44:112.59:0611:25New Moon14Sat
15Sun12:314.05:49-1.25:032.49:0611:24New Moon15Sun
16Mon1:084.16:27-0.95:542.49:0711:24Waxing Crescent16Mon
17Tue1:454.27:02-0.56:472.39:0811:23Waxing Crescent17Tue
18Wed12:325.12:204.37:350.07:432.39:0811:23Waxing Crescent18Wed
19Thu1:174.52:574.48:050.68:482.29:0911:22Waxing Crescent19Thu
20Fri2:093.83:354.58:341.110:082.19:1011:22First Quarter20Fri
21Sat3:193.24:144.79:031.711:311.79:1011:21First Quarter21Sat
22Sun5:022.94:574.89:342.29:1111:20First Quarter22Sun
23Mon7:092.85:415.012:431.310:17 AM2.69:1211:20First Quarter23Mon
24Tue8:523.06:275.21:410.811:19 AM2.99:1311:19Waxing Gibbous24Tue
25Wed9:373.37:145.42:260.312:263.09:1311:18Waxing Gibbous25Wed
26Thu10:073.47:585.73:05-0.11:273.09:1411:18Waxing Gibbous26Thu
27Fri10:343.68:405.93:41-0.42:182.99:1511:17Waxing Gibbous27Fri
28Sat11:023.79:206.14:16-0.73:042.89:1611:16Full Moon28Sat
29Sun11:303.810:006.24:50-0.93:482.69:1611:15Full Moon29Sun
30Mon11:594.010:426.15:24-0.94:362.49:1711:15Full Moon30Mon
31Tue12:304.25:58-0.85:272.29:1811:14Full Moon31Tue
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 7:08 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 (62% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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