Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 46m at 8:52 pm (2.5 ft)
Next high tide (tomorrow) : 2:06 am (3.9 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:303.68:556.93:45-1.42:302.58:5911:28New Moon1Tue
2Wed11:183.89:456.94:32-1.73:272.58:5911:28New Moon2Wed
3Thu12:033.95:19-1.84:242.49:0011:27New Moon3Thu
4Fri12:484.16:05-1.65:232.39:0011:27New Moon4Fri
5Sat1:314.36:48-1.36:242.29:0111:27Waxing Crescent5Sat
6Sun12:185.82:144.47:30-0.87:282.29:0211:27Waxing Crescent6Sun
7Mon1:105.12:594.68:09-0.28:382.19:0211:27Waxing Crescent7Mon
8Tue2:084.33:444.78:480.510:001.99:0311:26First Quarter8Tue
9Wed3:183.64:294.99:281.111:241.69:0311:26First Quarter9Wed
10Thu4:503.15:135.010:091.89:0411:26First Quarter10Thu
11Fri6:382.95:575.212:391.110:55 AM2.39:0411:25First Quarter11Fri
12Sat8:223.06:405.31:400.711:45 AM2.79:0511:25Waxing Gibbous12Sat
13Sun9:283.27:225.42:290.312:402.99:0611:25Waxing Gibbous13Sun
14Mon10:093.48:035.63:090.01:333.09:0611:24Waxing Gibbous14Mon
15Tue10:413.58:415.73:45-0.32:192.99:0711:24Waxing Gibbous15Tue
16Wed11:103.69:185.84:19-0.53:002.99:0811:23Full Moon16Wed
17Thu11:383.69:535.84:51-0.63:392.79:0811:23Full Moon17Thu
18Fri12:063.75:23-0.64:192.69:0911:22Full Moon18Fri
19Sat12:343.85:54-0.65:022.69:1011:22Full Moon19Sat
20Sun1:034.06:24-0.55:492.59:1011:21Waning Gibbous20Sun
21Mon1:324.26:53-0.26:412.39:1111:21Waning Gibbous21Mon
22Tue12:254.92:034.57:220.27:402.29:1211:20Waning Gibbous22Tue
23Wed1:154.32:374.77:510.78:511.99:1211:19Waning Gibbous23Wed
24Thu2:183.73:175.18:221.210:171.59:1311:19Third Quarter24Thu
25Fri3:493.14:055.49:001.811:411.09:1411:18Third Quarter25Fri
26Sat5:472.94:595.79:502.39:1511:17Third Quarter26Sat
27Sun7:393.05:586.012:540.311:01 AM2.79:1511:16Waning Crescent27Sun
28Mon8:513.36:586.31:55-0.412:182.89:1611:16Waning Crescent28Mon
29Tue9:373.67:566.62:47-0.91:302.79:1711:15Waning Crescent29Tue
30Wed10:163.98:506.73:33-1.22:332.59:1811:14Waning Crescent30Wed
31Thu10:524.19:406.74:17-1.33:292.29:1811:13New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 11:29 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 72% 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 Waning Gibbous (72% 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