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 1h 57m 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 - Dec 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:445.15:323.912:041.76:524:51Third Quarter1Wed
2Thu6:245.36:423.912:591.26:534:51Waning Crescent2Thu
3Fri6:585.57:413.912:251.31:440.76:544:50Waning Crescent3Fri
4Sat7:285.78:313.91:031.62:230.36:554:50Waning Crescent4Sat
5Sun7:565.79:153.81:371.92:590.06:564:50Waning Crescent5Sun
6Mon8:225.89:583.82:072.23:32-0.26:574:50New Moon6Mon
7Tue8:485.810:403.82:362.44:06-0.36:584:50New Moon7Tue
8Wed9:165.711:223.83:062.64:41-0.36:584:50New Moon8Wed
9Thu9:465.63:382.75:16-0.36:594:51New Moon9Thu
10Fri12:063.810:17 AM5.44:132.95:53-0.27:004:51Waxing Crescent10Fri
11Sat12:523.710:52 AM5.24:543.06:32-0.17:014:51Waxing Crescent11Sat
12Sun1:433.811:30 AM4.95:443.17:140.17:014:51Waxing Crescent12Sun
13Mon2:383.812:164.56:463.27:590.37:024:51Waxing Crescent13Mon
14Tue3:284.01:174.18:143.18:490.57:034:52First Quarter14Tue
15Wed4:114.32:423.79:532.89:400.87:034:52First Quarter15Wed
16Thu4:484.64:143.511:072.210:301.07:044:52First Quarter16Thu
17Fri5:235.15:383.512:061.57:054:53Waxing Gibbous17Fri
18Sat6:005.56:513.612:570.77:054:53Waxing Gibbous18Sat
19Sun6:386.07:543.812:051.51:44-0.17:064:53Waxing Gibbous19Sun
20Mon7:186.48:504.012:531.72:30-0.87:064:54Waxing Gibbous20Mon
21Tue8:006.89:444.11:401.83:16-1.37:074:54Full Moon21Tue
22Wed8:446.910:374.22:292.04:03-1.67:084:55Full Moon22Wed
23Thu9:306.911:314.33:192.14:52-1.67:084:55Full Moon23Thu
24Fri10:186.64:132.25:40-1.57:084:56Waning Gibbous24Fri
25Sat12:244.311:09 AM6.15:122.36:29-1.17:094:56Waning Gibbous25Sat
26Sun1:194.412:045.56:162.47:19-0.77:094:57Waning Gibbous26Sun
27Mon2:174.51:044.87:302.58:11-0.17:104:58Third Quarter27Mon
28Tue3:144.62:164.18:592.39:060.47:104:58Third Quarter28Tue
29Wed4:094.83:433.610:282.010:011.07:104:59Third Quarter29Wed
30Thu4:575.05:123.311:431.510:531.47:105:00Third Quarter30Thu
31Fri5:415.26:343.312:430.97:115:00Waning Crescent31Fri
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 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