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 4h 09m at 3:57 pm (4.6 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:453.69:565.34:310.03:411.99:1810:55Full Moon1Tue
2Wed11:303.510:195.45:06-0.34:042.29:1710:56Full Moon2Wed
3Thu12:193.35:43-0.44:282.49:1610:56Full Moon3Thu
4Fri1:123.26:22-0.44:532.69:1510:57Waning Gibbous4Fri
5Sat2:143.17:05-0.45:202.89:1410:58Waning Gibbous5Sat
6Sun3:343.17:53-0.45:533.09:1310:59Waning Gibbous6Sun
7Mon12:335.08:48-0.39:1211:00Waning Gibbous7Mon
8Tue1:264.75:453.49:48-0.28:413.29:1111:00Third Quarter8Tue
9Wed2:374.46:143.710:45-0.210:462.99:1011:01Third Quarter9Wed
10Thu4:054.26:404.111:35-0.19:0911:02Third Quarter10Thu
11Fri5:314.07:084.512:082.312:210.19:0911:03Third Quarter11Fri
12Sat6:484.07:375.11:121.51:020.49:0811:04Waning Crescent12Sat
13Sun7:593.98:095.72:070.61:430.89:0711:04Waning Crescent13Sun
14Mon9:043.98:446.22:58-0.22:221.29:0611:05Waning Crescent14Mon
15Tue10:053.99:216.53:47-0.93:021.69:0511:06New Moon15Tue
16Wed11:063.810:006.64:36-1.43:442.09:0511:07New Moon16Wed
17Thu12:083.75:27-1.64:282.39:0411:08New Moon17Thu
18Fri1:103.76:19-1.65:172.59:0311:08Waxing Crescent18Fri
19Sat2:143.67:11-1.46:142.89:0311:09Waxing Crescent19Sat
20Sun12:205.83:223.78:06-1.17:202.99:0211:10Waxing Crescent20Sun
21Mon1:155.34:273.89:02-0.78:412.99:0111:11Waxing Crescent21Mon
22Tue2:174.75:214.010:00-0.310:202.89:0111:11First Quarter22Tue
23Wed3:314.16:054.210:540.111:472.49:0011:12First Quarter23Wed
24Thu4:523.76:414.411:420.59:0011:13First Quarter24Thu
25Fri6:093.47:124.712:541.912:230.98:5911:13First Quarter25Fri
26Sat7:213.37:384.91:481.312:581.38:5911:14Waxing Gibbous26Sat
27Sun8:253.38:035.12:310.81:301.78:5811:15Waxing Gibbous27Sun
28Mon9:203.38:275.33:090.31:592.08:5811:16Waxing Gibbous28Mon
29Tue10:083.38:525.53:44-0.12:272.38:5711:16Waxing Gibbous29Tue
30Wed10:553.39:205.64:18-0.42:562.58:5711:17Full Moon30Wed
31Thu11:423.49:505.74:54-0.63:272.78:5711:17Full Moon31Thu
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 62% 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 (62% 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