Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 9:30 am (1.3 ft)
Next high tide : in 1h 16m at 3:26 am (3.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:515.911:274.33:521.84:56-1.07:025:31Full Moon1Mon
2Tue10:335.54:391.85:33-0.67:015:32Waning Gibbous2Tue
3Wed12:044.311:16 AM5.05:271.86:07-0.27:005:33Waning Gibbous3Wed
4Thu12:424.312:004.46:181.86:400.46:595:34Waning Gibbous4Thu
5Fri1:214.312:483.87:141.87:130.96:585:35Waning Gibbous5Fri
6Sat2:044.31:503.38:251.87:491.46:575:36Third Quarter6Sat
7Sun2:514.33:212.99:501.68:331.96:575:37Third Quarter7Sun
8Mon3:434.35:112.711:101.39:342.26:565:38Third Quarter8Mon
9Tue4:354.56:482.912:130.96:555:39Third Quarter9Tue
10Wed5:264.77:443.11:020.46:545:40Waning Crescent10Wed
11Thu6:124.98:203.31:410.06:535:41Waning Crescent11Thu
12Fri6:555.28:503.512:392.42:15-0.36:525:42Waning Crescent12Fri
13Sat7:345.49:193.71:232.32:49-0.66:515:43Waning Crescent13Sat
14Sun8:125.69:483.92:042.13:22-0.86:505:44New Moon14Sun
15Mon8:505.710:194.12:451.93:55-0.96:495:45New Moon15Mon
16Tue9:305.710:524.33:271.64:29-0.86:485:46New Moon16Tue
17Wed10:135.511:274.44:121.55:04-0.66:465:47New Moon17Wed
18Thu10:595.15:021.35:40-0.36:455:48Waxing Crescent18Thu
19Fri12:044.611:51 AM4.65:571.26:170.26:445:49Waxing Crescent19Fri
20Sat12:454.812:514.06:591.06:580.86:435:50Waxing Crescent20Sat
21Sun1:314.92:103.48:150.97:451.36:425:50First Quarter21Sun
22Mon2:275.03:523.19:420.68:491.96:415:51First Quarter22Mon
23Tue3:315.15:363.111:040.210:082.26:405:52First Quarter23Tue
24Wed4:385.26:563.412:13-0.26:385:53First Quarter24Wed
25Thu5:425.47:493.71:10-0.66:375:54Waxing Gibbous25Thu
26Fri6:415.68:314.012:352.11:57-0.96:365:55Waxing Gibbous26Fri
27Sat7:335.79:074.21:311.92:39-1.06:355:56Waxing Gibbous27Sat
28Sun8:195.79:404.32:191.63:16-0.96:335:57Full Moon28Sun
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 6:28 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 neap phase. Tonight's moon is 50% 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 minimum.

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 (50% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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