Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:01 pm (2.8 ft)
Next high tide : in 2h 07m at 1:08 pm (3.6 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:315.38:333.812:292.41:51-0.79:389:05Waning Crescent1Mon
2Tue7:235.49:054.01:252.22:31-0.89:379:06Waning Crescent2Tue
3Wed8:065.49:334.02:091.93:06-0.79:359:07Waning Crescent3Wed
4Thu8:455.310:004.12:471.73:38-0.69:349:08New Moon4Thu
5Fri9:215.110:254.23:231.54:07-0.39:339:09New Moon5Fri
6Sat9:564.910:504.23:581.44:340.09:319:09New Moon6Sat
7Sun10:324.611:154.34:351.25:000.39:309:10New Moon7Sun
8Mon11:104.211:414.35:131.25:250.79:299:11Waxing Crescent8Mon
9Tue11:513.85:541.15:491.29:279:12Waxing Crescent9Tue
10Wed12:084.412:403.46:411.16:121.69:269:13Waxing Crescent10Wed
11Thu12:394.31:472.97:381.16:372.09:259:14Waxing Crescent11Thu
12Fri1:174.33:402.78:551.17:072.49:239:15First Quarter12Fri
13Sat2:094.35:532.810:200.88:182.89:229:15First Quarter13Sat
14Sun4:194.38:023.112:290.410:2110:16First Quarter14Sun
15Mon5:314.58:323.41:240.010:1910:17First Quarter15Mon
16Tue6:364.88:583.612:372.62:09-0.410:1810:18Waxing Gibbous16Tue
17Wed7:345.29:243.91:362.32:48-0.710:1610:19Waxing Gibbous17Wed
18Thu8:255.59:524.22:261.83:26-0.910:1510:20Waxing Gibbous18Thu
19Fri9:145.710:234.63:131.34:02-0.910:1410:20Full Moon19Fri
20Sat10:035.610:554.94:010.84:39-0.710:1210:21Full Moon20Sat
21Sun10:535.411:315.24:500.45:16-0.410:1110:22Full Moon21Sun
22Mon11:475.05:430.05:540.210:0910:23Full Moon22Mon
23Tue12:095.412:454.46:38-0.26:330.810:0810:24Waning Gibbous23Tue
24Wed12:505.41:503.97:38-0.27:141.410:0610:24Waning Gibbous24Wed
25Thu1:355.43:123.48:45-0.28:022.010:0510:25Waning Gibbous25Thu
26Fri2:295.14:563.310:03-0.19:122.510:0410:26Third Quarter26Fri
27Sat3:374.96:343.411:23-0.210:552.710:0210:27Third Quarter27Sat
28Sun4:564.77:443.712:34-0.310:0110:28Third Quarter28Sun
29Mon6:124.68:283.912:282.61:33-0.49:5910:28Waning Crescent29Mon
30Tue7:174.79:014.11:352.22:20-0.49:5810:29Waning Crescent30Tue
31Wed8:114.79:294.22:251.92:59-0.39:5710:30Waning Crescent31Wed
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 3:04 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 97% 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 Full Moon (97% 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