Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 52m at 9:30 am (1.3 ft)
Next high tide : 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 - Mar 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:054.910:414.94:070.74:240.19:379:06Full Moon1Sun
2Mon10:534.511:145.24:550.54:550.59:369:06Waning Gibbous2Mon
3Tue11:464.011:515.35:470.35:271.09:359:07Waning Gibbous3Tue
4Wed12:493.56:450.26:021.59:339:08Waning Gibbous4Wed
5Thu12:355.32:133.07:550.16:432.09:329:09Waning Gibbous5Thu
6Fri1:295.24:042.99:170.07:442.49:319:10Third Quarter6Fri
7Sat2:405.15:443.110:39-0.29:302.69:299:11Third Quarter7Sat
8Sun5:015.17:483.412:47-0.410:2810:12Third Quarter8Sun
9Mon6:175.28:293.812:092.51:44-0.710:2710:12Waning Crescent9Mon
10Tue7:235.39:034.11:232.12:30-0.710:2510:13Waning Crescent10Tue
11Wed8:205.39:334.42:211.63:10-0.710:2410:14Waning Crescent11Wed
12Thu9:095.310:034.63:101.23:45-0.510:2210:15Waning Crescent12Thu
13Fri9:535.110:314.83:540.84:18-0.210:2110:16New Moon13Fri
14Sat10:364.810:595.04:360.54:480.210:2010:17New Moon14Sat
15Sun11:194.411:275.05:170.45:170.710:1810:18New Moon15Sun
16Mon12:034.05:590.35:441.110:1710:18Waxing Crescent16Mon
17Tue12:503.66:410.36:101.610:1610:19Waxing Crescent17Tue
18Wed12:254.91:433.27:260.46:352.010:1410:20Waxing Crescent18Wed
19Thu12:574.72:522.98:180.67:012.310:1310:21Waxing Crescent19Thu
20Fri1:354.54:412.89:240.77:292.610:1110:22First Quarter20Fri
21Sat2:254.310:450.710:1010:22First Quarter21Sat
22Sun3:384.17:393.111:570.611:022.910:0810:23First Quarter22Sun
23Mon5:004.18:043.312:520.410:0710:24First Quarter23Mon
24Tue6:104.28:243.612:242.61:350.210:0610:25First Quarter24Tue
25Wed7:074.48:453.91:202.22:100.110:0410:26Waxing Gibbous25Wed
26Thu7:584.69:064.22:061.72:410.010:0310:26Waxing Gibbous26Thu
27Fri8:444.79:294.62:471.23:110.110:0110:27Waxing Gibbous27Fri
28Sat9:294.79:555.03:290.73:410.210:0010:28Full Moon28Sat
29Sun10:154.610:245.44:110.24:120.59:5910:29Full Moon29Sun
30Mon11:044.410:575.64:57-0.34:450.99:5710:30Full Moon30Mon
31Tue11:584.111:345.85:46-0.65:201.39:5610:30Full 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 1:02 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