Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 41m at 5:09 pm (2.2 ft)
Next high tide : 11:13 pm (6.5 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:07 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:325.310:194.83:320.94:04-0.49:399:05New Moon1Wed
2Thu10:164.910:524.84:160.74:370.09:389:05New Moon2Thu
3Fri10:594.511:244.85:010.75:090.59:369:06Waxing Crescent3Fri
4Sat11:454.011:584.75:460.75:391.09:359:07Waxing Crescent4Sat
5Sun12:343.66:330.86:091.49:349:08Waxing Crescent5Sun
6Mon12:334.61:363.17:280.96:401.99:329:09Waxing Crescent6Mon
7Tue1:144.43:052.88:381.07:192.39:319:10First Quarter7Tue
8Wed2:064.34:562.810:001.08:282.69:309:11First Quarter8Wed
9Thu3:154.26:223.011:130.810:122.79:289:12First Quarter9Thu
10Fri4:264.27:073.212:100.59:279:12First Quarter10Fri
11Sat5:294.47:373.512:540.39:259:13Waxing Gibbous11Sat
12Sun6:214.68:013.712:252.21:290.19:249:14Waxing Gibbous12Sun
13Mon7:074.88:254.01:101.92:01-0.19:239:15Waxing Gibbous13Mon
14Tue7:495.08:504.31:501.52:31-0.29:219:16Waxing Gibbous14Tue
15Wed8:295.09:164.62:291.13:01-0.19:209:17Full Moon15Wed
16Thu9:115.09:454.93:100.73:320.09:199:17Full Moon16Thu
17Fri9:554.810:185.13:530.44:040.39:179:18Full Moon17Fri
18Sat10:444.510:535.34:400.14:390.69:169:19Full Moon18Sat
19Sun11:374.211:335.45:31-0.15:161.09:149:20Waning Gibbous19Sun
20Mon12:383.76:26-0.15:561.59:139:21Waning Gibbous20Mon
21Tue12:195.31:523.47:29-0.16:441.99:129:22Waning Gibbous21Tue
22Wed1:135.23:253.28:44-0.17:522.39:109:22Third Quarter22Wed
23Thu2:225.04:543.410:02-0.19:312.49:099:23Third Quarter23Thu
24Fri3:434.86:033.611:13-0.311:022.29:079:24Third Quarter24Fri
25Sat5:004.86:534.012:12-0.49:069:25Waning Crescent25Sat
26Sun6:094.97:334.312:151.81:02-0.49:059:26Waning Crescent26Sun
27Mon7:084.98:074.61:121.31:45-0.39:039:26Waning Crescent27Mon
28Tue7:594.98:384.82:010.92:22-0.19:029:27Waning Crescent28Tue
29Wed8:444.89:085.02:440.62:560.29:009:28New Moon29Wed
30Thu9:274.69:375.13:250.33:280.58:599:29New Moon30Thu
31Fri10:104.310:065.14:040.23:580.98:579:30New Moon31Fri
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 8:11 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 2% 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 New Moon (2% 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