Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 23m at 2:14 pm (2.6 ft)
Next high tide : 8:41 pm (6.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:214.15:534.612:160.712:202.96:586:46Third Quarter1Sat
2Sun7:554.26:544.61:070.71:162.56:586:45Waning Crescent2Sun
3Mon8:224.47:454.71:470.81:592.16:596:44Waning Crescent3Mon
4Tue8:454.68:284.72:200.82:361.77:006:42Waning Crescent4Tue
5Wed9:064.99:084.72:481.03:101.47:016:41Waning Crescent5Wed
6Thu9:275.19:464.63:131.23:441.07:026:39New Moon6Thu
7Fri9:495.310:254.53:371.44:190.77:026:38New Moon7Fri
8Sat10:135.511:064.44:021.64:560.57:036:37New Moon8Sat
9Sun10:395.611:524.24:281.95:360.37:046:35New Moon9Sun
10Mon11:085.74:562.26:190.27:056:34Waxing Crescent10Mon
11Tue12:443.911:42 AM5.75:262.57:080.27:066:33Waxing Crescent11Tue
12Wed1:443.712:225.66:022.88:030.27:066:31Waxing Crescent12Wed
13Thu2:593.61:125.46:473.09:080.37:076:30Waxing Crescent13Thu
14Fri4:283.62:185.27:563.210:180.37:086:29First Quarter14Fri
15Sat5:373.93:425.09:483.211:230.27:096:27First Quarter15Sat
16Sun6:254.25:094.911:292.87:106:26First Quarter16Sun
17Mon7:044.66:264.912:180.212:422.27:116:25Waxing Gibbous17Mon
18Tue7:395.17:334.91:070.31:411.57:126:24Waxing Gibbous18Tue
19Wed8:135.68:334.91:500.52:330.87:126:22Waxing Gibbous19Wed
20Thu8:476.09:284.92:310.83:210.17:136:21Full Moon20Thu
21Fri9:226.310:224.73:091.14:08-0.37:146:20Full Moon21Fri
22Sat9:576.411:154.53:461.54:55-0.57:156:19Full Moon22Sat
23Sun10:336.44:241.95:42-0.67:166:18Full Moon23Sun
24Mon12:114.311:10 AM6.25:032.36:30-0.57:176:17Waning Gibbous24Mon
25Tue1:094.111:50 AM5.95:452.77:19-0.27:186:15Waning Gibbous25Tue
26Wed2:123.912:345.56:323.08:120.17:196:14Waning Gibbous26Wed
27Thu3:253.81:225.07:273.29:100.47:206:13Waning Gibbous27Thu
28Fri4:413.92:224.68:463.310:140.77:206:12Third Quarter28Fri
29Sat5:414.03:404.210:323.211:120.87:216:11Third Quarter29Sat
30Sun6:264.25:034.011:552.97:226:10Third Quarter30Sun
31Mon7:004.46:144.012:021.012:542.47:236:09Third Quarter31Mon
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 5:27 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 4% 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 Waning Crescent (4% 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