Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 10:20 pm (2.1 ft)
Next high tide : in 5h 06m at 3:57 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:135.510:215.63:59-0.14:160.76:586:46Full Moon1Tue
2Wed10:465.711:125.24:350.45:050.46:596:45Full Moon2Wed
3Thu11:195.85:110.95:550.26:596:43Waning Gibbous3Thu
4Fri12:074.811:54 AM5.85:461.56:460.27:006:42Waning Gibbous4Fri
5Sat1:064.312:305.76:212.17:400.37:016:41Waning Gibbous5Sat
6Sun2:153.91:095.46:582.78:410.57:026:39Waning Gibbous6Sun
7Mon3:483.71:545.07:413.19:540.67:036:38Third Quarter7Mon
8Tue5:383.72:554.78:553.511:100.77:036:36Third Quarter8Tue
9Wed6:593.94:204.511:013.57:046:35Third Quarter9Wed
10Thu7:444.15:404.512:150.712:263.37:056:34Third Quarter10Thu
11Fri8:134.36:444.61:080.61:202.97:066:32Waning Crescent11Fri
12Sat8:364.47:354.71:490.62:002.57:076:31Waning Crescent12Sat
13Sun8:574.68:194.82:230.62:342.17:076:30Waning Crescent13Sun
14Mon9:164.88:584.82:510.63:071.67:086:29Waning Crescent14Mon
15Tue9:365.09:374.83:170.83:401.37:096:27New Moon15Tue
16Wed9:575.210:164.73:421.04:150.97:106:26New Moon16Wed
17Thu10:195.410:594.54:071.34:530.67:116:25New Moon17Thu
18Fri10:445.611:474.34:331.75:340.37:126:23New Moon18Fri
19Sat11:125.75:002.06:190.17:136:22Waxing Crescent19Sat
20Sun12:424.011:44 AM5.85:292.47:090.17:136:21Waxing Crescent20Sun
21Mon1:483.712:235.76:022.88:070.07:146:20Waxing Crescent21Mon
22Tue3:143.61:115.56:443.29:160.17:156:19Waxing Crescent22Tue
23Wed4:583.72:175.37:513.510:310.07:166:17First Quarter23Wed
24Thu6:103.93:455.19:563.511:38-0.17:176:16First Quarter24Thu
25Fri6:564.35:145.011:423.17:186:15First Quarter25Fri
26Sat7:314.66:305.012:35-0.112:542.57:196:14Waxing Gibbous26Sat
27Sun8:035.07:375.11:24-0.11:511.87:206:13Waxing Gibbous27Sun
28Mon8:345.48:365.12:070.12:421.17:216:12Waxing Gibbous28Mon
29Tue9:055.89:304.92:450.43:280.57:226:11Waxing Gibbous29Tue
30Wed9:356.010:224.73:210.94:130.07:226:10Full Moon30Wed
31Thu10:066.211:154.53:551.34:58-0.37:236:09Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 7:08 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 transitional phase. Tonight's moon is 61% 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 shifting between spring and neap.

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 Third Quarter (61% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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