Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 25m at 8:53 am (0.7 ft)
Next high tide : 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 - May 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:524.29:125.12:580.92:530.56:117:49Waning Crescent1Mon
2Tue9:404.39:405.53:380.33:260.86:097:49New Moon2Tue
3Wed10:294.210:125.84:20-0.24:011.16:087:50New Moon3Wed
4Thu11:234.110:485.95:05-0.74:381.46:077:51New Moon4Thu
5Fri12:203.95:54-1.05:181.86:067:52New Moon5Fri
6Sat1:233.86:45-1.16:042.16:067:53Waxing Crescent6Sat
7Sun12:135.92:343.77:41-1.16:582.56:057:53Waxing Crescent7Sun
8Mon1:045.63:533.78:42-0.98:082.76:047:54Waxing Crescent8Mon
9Tue2:055.25:073.99:49-0.79:442.86:037:55First Quarter9Tue
10Wed3:214.76:074.110:56-0.511:212.56:027:56First Quarter10Wed
11Thu4:464.46:554.511:57-0.36:017:57First Quarter11Thu
12Fri6:064.27:364.812:391.912:50-0.16:007:58Waxing Gibbous12Fri
13Sat7:184.18:125.11:411.41:370.25:597:58Waxing Gibbous13Sat
14Sun8:204.18:445.32:330.82:170.65:597:59Waxing Gibbous14Sun
15Mon9:144.09:135.53:170.32:531.05:588:00Waxing Gibbous15Mon
16Tue10:033.99:415.53:58-0.13:251.45:578:01Full Moon16Tue
17Wed10:503.810:085.54:37-0.33:551.75:568:01Full Moon17Wed
18Thu11:373.710:355.55:14-0.44:242.15:568:02Full Moon18Thu
19Fri12:253.65:52-0.54:542.35:558:03Full Moon19Fri
20Sat1:153.56:30-0.45:272.65:548:04Waning Gibbous20Sat
21Sun2:093.47:10-0.36:042.85:548:04Waning Gibbous21Sun
22Mon12:084.93:113.47:53-0.26:483.05:538:05Waning Gibbous22Mon
23Tue12:464.64:193.58:400.07:483.15:538:06Waning Gibbous23Tue
24Wed1:324.35:163.69:330.29:223.15:528:07Third Quarter24Wed
25Thu2:334.05:573.810:270.311:052.95:528:07Third Quarter25Thu
26Fri3:553.76:304.111:170.55:518:08Third Quarter26Fri
27Sat5:173.66:594.412:162.512:020.65:518:09Third Quarter27Sat
28Sun6:313.67:274.81:111.912:440.75:508:09Waning Crescent28Sun
29Mon7:383.67:575.31:571.21:240.95:508:10Waning Crescent29Mon
30Tue8:383.78:285.72:410.52:031.25:508:11Waning Crescent30Tue
31Wed9:333.89:036.13:24-0.22:431.45:498:11Waning Crescent31Wed
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 12:25 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