Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 7h 29m at 12:51 am (0.7 ft)
Next high tide (tomorrow) : 6:59 am (2.9 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:293.66:26-0.85:142.98:5911:28New Moon1Tue
2Wed2:093.77:04-0.86:062.98:5911:28Waxing Crescent2Wed
3Thu12:045.52:503.87:42-0.67:062.99:0011:27Waxing Crescent3Thu
4Fri12:525.13:314.18:21-0.38:182.89:0011:27Waxing Crescent4Fri
5Sat1:474.64:114.49:020.09:462.59:0111:27First Quarter5Sat
6Sun2:584.04:514.89:460.511:141.99:0111:27First Quarter6Sun
7Mon4:273.55:315.210:331.09:0211:27First Quarter7Mon
8Tue6:043.36:145.712:281.211:21 AM1.59:0211:27First Quarter8Tue
9Wed7:373.26:596.11:320.312:132.09:0311:26Waxing Gibbous9Wed
10Thu8:543.47:466.52:28-0.41:082.39:0311:26Waxing Gibbous10Thu
11Fri9:553.68:336.73:19-1.02:042.59:0411:26Waxing Gibbous11Fri
12Sat10:473.89:216.84:06-1.42:592.59:0411:25Full Moon12Sat
13Sun11:363.910:086.74:53-1.53:522.59:0511:25Full Moon13Sun
14Mon12:214.05:38-1.54:462.59:0611:25Full Moon14Mon
15Tue1:054.16:22-1.35:402.59:0611:24Waning Gibbous15Tue
16Wed1:474.17:03-0.96:362.59:0711:24Waning Gibbous16Wed
17Thu12:295.52:304.27:43-0.57:352.59:0811:23Waning Gibbous17Thu
18Fri1:174.93:134.38:210.18:432.49:0811:23Waning Gibbous18Fri
19Sat2:114.23:574.48:590.710:052.39:0911:22Third Quarter19Sat
20Sun3:183.64:394.69:381.311:291.99:1011:22Third Quarter20Sun
21Mon4:483.15:194.810:191.89:1011:21Third Quarter21Mon
22Tue6:313.05:595.012:421.511:04 AM2.39:1111:20Third Quarter22Tue
23Wed8:073.16:395.21:401.011:52 AM2.69:1211:20Waning Crescent23Wed
24Thu9:123.37:205.42:250.512:442.89:1311:19Waning Crescent24Thu
25Fri9:553.47:595.63:040.21:342.99:1311:18Waning Crescent25Fri
26Sat10:303.68:385.83:40-0.22:202.99:1411:18Waning Crescent26Sat
27Sun11:033.79:166.04:14-0.53:022.89:1511:17New Moon27Sun
28Mon11:353.79:546.14:49-0.73:432.79:1511:16New Moon28Mon
29Tue12:073.85:23-0.84:262.69:1611:15New Moon29Tue
30Wed12:394.05:58-0.85:132.59:1711:15New Moon30Wed
31Thu1:124.16:32-0.66:042.49:1811:14Waxing Crescent31Thu
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 3:55 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 41% 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 (41% 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