Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:20 am (0.3 ft)
Next high tide : in 1h 19m at 1:10 am (4.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:015.810:164.42:581.43:55-1.06:305:59Full Moon1Wed
2Thu9:475.710:514.73:451.14:31-0.86:296:00Full Moon2Thu
3Fri10:365.411:284.94:360.85:08-0.46:286:01Waning Gibbous3Fri
4Sat11:304.85:310.65:460.26:266:01Waning Gibbous4Sat
5Sun12:085.112:304.26:300.56:260.86:256:02Waning Gibbous5Sun
6Mon12:525.11:433.67:390.47:101.46:246:03Waning Gibbous6Mon
7Tue1:445.13:203.29:000.38:082.06:226:04Third Quarter7Tue
8Wed2:485.05:083.210:240.19:332.46:216:05Third Quarter8Wed
9Thu4:005.06:363.411:38-0.211:032.56:206:06Third Quarter9Thu
10Fri5:115.07:323.712:40-0.56:186:07Waning Crescent10Fri
11Sat6:165.18:123.912:182.31:30-0.66:176:07Waning Crescent11Sat
12Sun8:105.29:444.11:162.03:12-0.77:167:08Waning Crescent12Sun
13Mon8:575.210:134.23:011.73:48-0.67:147:09Waning Crescent13Mon
14Tue9:375.110:394.33:411.54:21-0.47:137:10New Moon14Tue
15Wed10:155.011:044.44:171.24:50-0.17:117:11New Moon15Wed
16Thu10:514.811:294.44:531.15:170.27:107:12New Moon16Thu
17Fri11:284.511:544.55:290.95:430.67:097:12New Moon17Fri
18Sat12:074.16:060.86:080.97:077:13Waxing Crescent18Sat
19Sun12:204.512:503.76:460.86:331.47:067:14Waxing Crescent19Sun
20Mon12:474.51:393.37:300.86:571.87:047:15Waxing Crescent20Mon
21Tue1:174.42:463.08:230.97:232.27:037:16Waxing Crescent21Tue
22Wed1:544.34:342.89:320.97:562.57:027:17First Quarter22Wed
23Thu2:434.26:342.910:540.89:122.87:007:17First Quarter23Thu
24Fri3:554.27:413.212:060.56:597:18First Quarter24Fri
25Sat5:134.38:133.41:020.16:577:19First Quarter25Sat
26Sun6:214.68:383.712:322.61:48-0.26:567:20Waxing Gibbous26Sun
27Mon7:204.99:044.01:292.22:28-0.56:557:21Waxing Gibbous27Mon
28Tue8:135.29:314.42:181.73:05-0.66:537:21Waxing Gibbous28Tue
29Wed9:035.310:004.73:041.23:41-0.66:527:22Waxing Gibbous29Wed
30Thu9:515.310:335.13:500.64:17-0.46:507:23Full Moon30Thu
31Fri10:425.211:075.44:380.14:54-0.16:497:24Full 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 4:45 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 80% 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 Gibbous (80% 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