Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 37m at 5:01 pm (2.8 ft)
Next high tide : 11:09 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:413.59:355.54:19-0.13:192.18:5611:18New Moon1Tue
2Wed11:263.510:035.64:54-0.33:502.38:5611:19New Moon2Wed
3Thu12:133.55:30-0.54:222.58:5611:20New Moon3Thu
4Fri1:033.56:09-0.64:582.78:5511:20New Moon4Fri
5Sat1:543.56:50-0.75:402.98:5511:21Waxing Crescent5Sat
6Sun2:503.57:33-0.66:313.08:5511:21Waxing Crescent6Sun
7Mon12:315.23:473.78:19-0.57:373.18:5511:22Waxing Crescent7Mon
8Tue1:234.94:383.99:10-0.49:043.08:5511:22Waxing Crescent8Tue
9Wed2:284.55:214.210:03-0.110:412.68:5511:23First Quarter9Wed
10Thu3:494.15:594.610:550.18:5511:23First Quarter10Thu
11Fri5:163.86:375.112:012.011:44 AM0.58:5411:24First Quarter11Fri
12Sat6:393.77:155.61:071.212:320.88:5411:24Waxing Gibbous12Sat
13Sun7:563.77:536.02:040.41:191.28:5511:25Waxing Gibbous13Sun
14Mon9:033.78:336.42:55-0.32:051.58:5511:25Waxing Gibbous14Mon
15Tue10:033.89:146.63:44-0.92:511.88:5511:25Full Moon15Tue
16Wed11:013.99:556.64:32-1.33:372.18:5511:26Full Moon16Wed
17Thu11:573.910:396.55:20-1.54:262.38:5511:26Full Moon17Thu
18Fri12:523.96:08-1.55:172.58:5511:26Full Moon18Fri
19Sat1:463.96:54-1.36:132.78:5511:27Waning Gibbous19Sat
20Sun12:115.72:404.07:41-0.97:122.88:5511:27Waning Gibbous20Sun
21Mon1:005.23:354.08:28-0.58:202.88:5611:27Waning Gibbous21Mon
22Tue1:534.64:284.29:16-0.19:452.78:5611:27Third Quarter22Tue
23Wed2:554.05:144.310:040.411:132.58:5611:27Third Quarter23Wed
24Thu4:113.65:554.510:510.88:5611:27Third Quarter24Thu
25Fri5:343.36:304.712:272.011:35 AM1.38:5711:28Third Quarter25Fri
26Sat6:543.17:035.01:261.512:161.68:5711:28Waning Crescent26Sat
27Sun8:073.27:345.22:121.012:551.98:5711:28Waning Crescent27Sun
28Mon9:053.38:045.42:510.51:332.28:5811:28Waning Crescent28Mon
29Tue9:533.48:355.63:270.12:102.48:5811:28Waning Crescent29Tue
30Wed10:373.59:075.84:02-0.22:472.58:5911:28New Moon30Wed
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 8:05 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 spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Port San Luis, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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