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 4h 47m at 8:20 am (0.3 ft)
Next high tide : 3:21 pm (4.2 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 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:064.14:394.99:410.511:121.78:5911:28First Quarter1Fri
2Sat4:323.45:245.210:261.29:0011:28First Quarter2Sat
3Sun6:093.16:075.312:291.111:12 AM1.89:0011:27First Quarter3Sun
4Mon7:513.06:485.51:350.611:59 AM2.39:0111:27Waxing Gibbous4Mon
5Tue9:113.27:285.62:270.212:472.79:0111:27Waxing Gibbous5Tue
6Wed10:063.38:065.63:10-0.21:362.99:0211:27Waxing Gibbous6Wed
7Thu10:473.58:435.73:48-0.42:203.09:0211:27Waxing Gibbous7Thu
8Fri11:213.59:195.84:24-0.53:002.99:0311:26Full Moon8Fri
9Sat11:523.69:535.84:58-0.63:382.99:0311:26Full Moon9Sat
10Sun12:223.65:31-0.64:162.89:0411:26Full Moon10Sun
11Mon12:523.76:03-0.64:572.89:0511:25Full Moon11Mon
12Tue1:213.86:33-0.55:412.79:0511:25Waning Gibbous12Tue
13Wed1:513.97:03-0.36:302.79:0611:25Waning Gibbous13Wed
14Thu12:165.02:224.17:320.07:262.69:0711:24Waning Gibbous14Thu
15Fri12:594.52:544.38:000.48:322.49:0711:24Waning Gibbous15Fri
16Sat1:523.93:284.68:300.99:562.19:0811:23Third Quarter16Sat
17Sun3:063.34:085.09:021.411:211.59:0911:23Third Quarter17Sun
18Mon4:532.94:525.39:432.09:0911:22Third Quarter18Mon
19Tue6:492.95:425.712:340.810:37 AM2.49:1011:22Third Quarter19Tue
20Wed8:253.16:366.11:360.111:43 AM2.79:1111:21Waning Crescent20Wed
21Thu9:233.47:326.52:30-0.612:542.89:1111:20Waning Crescent21Thu
22Fri10:073.68:276.83:19-1.12:012.79:1211:20Waning Crescent22Fri
23Sat10:483.89:196.94:05-1.53:012.59:1311:19New Moon23Sat
24Sun11:274.010:106.94:49-1.63:582.39:1311:18New Moon24Sun
25Mon12:064.35:32-1.54:552.19:1411:18New Moon25Mon
26Tue12:464.56:13-1.25:541.99:1511:17Waxing Crescent26Tue
27Wed1:254.76:52-0.76:551.89:1611:16Waxing Crescent27Wed
28Thu12:445.32:054.97:29-0.17:591.79:1611:15Waxing Crescent28Thu
29Fri1:414.52:485.08:050.69:121.69:1711:15Waxing Crescent29Fri
30Sat2:483.83:335.18:411.410:371.49:1811:14First Quarter30Sat
31Sun4:213.24:235.19:202.111:581.09:1911:13First Quarter31Sun
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 11:50 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 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