Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 24m at 5:05 am (-1.7 ft)
Next high tide : 11:46 am (4.0 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:06 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:135.510:215.63:59-0.14:160.710:059:53Full Moon1Tue
2Wed10:465.711:125.24:350.45:050.410:059:52Full Moon2Wed
3Thu11:195.85:110.95:550.210:069:50Full Moon3Thu
4Fri12:074.811:54 AM5.85:461.56:460.210:079:49Waning Gibbous4Fri
5Sat1:064.312:305.76:212.17:400.310:089:47Waning Gibbous5Sat
6Sun2:153.91:095.46:582.78:410.510:089:46Waning Gibbous6Sun
7Mon3:483.71:545.07:413.19:540.610:099:45Third Quarter7Mon
8Tue5:383.72:554.78:553.511:100.710:109:43Third Quarter8Tue
9Wed6:593.94:204.511:013.510:119:42Third Quarter9Wed
10Thu7:444.15:404.512:150.712:263.310:129:41Third Quarter10Thu
11Fri8:134.36:444.61:080.61:202.910:139:39Waning Crescent11Fri
12Sat8:364.47:354.71:490.62:002.510:139:38Waning Crescent12Sat
13Sun8:574.68:194.82:230.62:342.110:149:37Waning Crescent13Sun
14Mon9:164.88:584.82:510.63:071.610:159:35Waning Crescent14Mon
15Tue9:365.09:374.83:170.83:401.310:169:34New Moon15Tue
16Wed9:575.210:164.73:421.04:150.910:179:33New Moon16Wed
17Thu10:195.410:594.54:071.34:530.610:189:32New Moon17Thu
18Fri10:445.611:474.34:331.75:340.310:189:30New Moon18Fri
19Sat11:125.75:002.06:190.110:199:29Waxing Crescent19Sat
20Sun12:424.011:44 AM5.85:292.47:090.110:209:28Waxing Crescent20Sun
21Mon1:483.712:235.76:022.88:070.010:219:27Waxing Crescent21Mon
22Tue3:143.61:115.56:443.29:160.110:229:26Waxing Crescent22Tue
23Wed4:583.72:175.37:513.510:310.010:239:24First Quarter23Wed
24Thu6:103.93:455.19:563.511:38-0.110:249:23First Quarter24Thu
25Fri6:564.35:145.011:423.110:259:22First Quarter25Fri
26Sat7:314.66:305.012:35-0.112:542.510:259:21Waxing Gibbous26Sat
27Sun8:035.07:375.11:24-0.11:511.810:269:20Waxing Gibbous27Sun
28Mon8:345.48:365.12:070.12:421.110:279:19Waxing Gibbous28Mon
29Tue9:055.89:304.92:450.43:280.510:289:18Waxing Gibbous29Tue
30Wed9:356.010:224.73:210.94:130.010:299:17Full Moon30Wed
31Thu10:066.211:154.53:551.34:58-0.310:309:16Full Moon31Thu
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 8:25 am — 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 0% 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 (0% 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