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 1h 44m at 1:08 pm (3.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Apr 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:534.28:253.91:132.11:490.36:487:24Waxing Gibbous1Fri
2Sat7:464.28:504.12:001.72:240.46:477:25Waxing Gibbous2Sat
3Sun8:304.39:134.42:391.42:540.56:467:26Waxing Gibbous3Sun
4Mon9:104.39:354.63:141.03:200.66:447:27Waxing Gibbous4Mon
5Tue9:474.29:574.83:470.73:450.86:437:27Full Moon5Tue
6Wed10:244.110:214.94:210.44:111.06:417:28Full Moon6Wed
7Thu11:044.010:475.14:570.24:371.36:407:29Full Moon7Thu
8Fri11:463.811:155.15:350.05:041.56:397:30Full Moon8Fri
9Sat12:333.66:16-0.15:341.86:377:31Waning Gibbous9Sat
10Sun1:273.47:01-0.16:082.16:367:31Waning Gibbous10Sun
11Mon12:245.12:313.27:51-0.16:482.46:357:32Waning Gibbous11Mon
12Tue1:094.93:513.28:51-0.17:442.66:337:33Waning Gibbous12Tue
13Wed2:064.75:103.39:590.09:152.76:327:34Third Quarter13Wed
14Thu3:224.56:093.611:06-0.111:022.56:317:35Third Quarter14Thu
15Fri4:484.46:554.012:06-0.16:297:35Third Quarter15Fri
16Sat6:074.47:344.412:232.012:58-0.16:287:36Waning Crescent16Sat
17Sun7:184.58:104.91:281.31:440.06:277:37Waning Crescent17Sun
18Mon8:204.68:465.42:230.62:270.26:267:38Waning Crescent18Mon
19Tue9:174.69:225.73:130.03:080.46:247:39New Moon19Tue
20Wed10:104.59:586.04:01-0.53:470.86:237:40New Moon20Wed
21Thu11:034.310:366.04:48-0.94:271.16:227:40New Moon21Thu
22Fri11:584.111:155.95:36-1.05:081.56:217:41New Moon22Fri
23Sat12:543.96:25-0.95:511.96:207:42Waxing Crescent23Sat
24Sun1:543.77:14-0.76:372.26:187:43Waxing Crescent24Sun
25Mon12:405.23:013.58:06-0.47:302.56:177:44Waxing Crescent25Mon
26Tue1:284.84:153.59:02-0.18:392.76:167:44Waxing Crescent26Tue
27Wed2:244.35:233.610:050.210:152.76:157:45First Quarter27Wed
28Thu3:363.96:163.811:060.411:432.56:147:46First Quarter28Thu
29Fri4:573.76:574.011:590.66:137:47First Quarter29Fri
30Sat6:103.67:304.212:492.112:450.86:127:48First Quarter30Sat
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