Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 39m at 4:31 am (-0.6 ft)
Next high tide : 11:29 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:453.79:246.44:11-0.83:052.48:5911:28New Moon1Mon
2Tue11:323.810:066.54:53-1.13:512.48:5911:28New Moon2Tue
3Wed12:203.95:37-1.34:422.59:0011:28New Moon3Wed
4Thu1:084.06:22-1.45:382.59:0011:27Waxing Crescent4Thu
5Fri1:564.27:07-1.36:392.59:0111:27Waxing Crescent5Fri
6Sat12:345.82:474.37:54-0.97:482.49:0111:27Waxing Crescent6Sat
7Sun1:325.33:394.68:42-0.59:092.29:0211:27Waxing Crescent7Sun
8Mon2:394.64:304.99:330.110:381.99:0211:27First Quarter8Mon
9Tue4:014.05:205.210:250.69:0311:26First Quarter9Tue
10Wed5:323.56:085.512:001.311:19 AM1.29:0311:26First Quarter10Wed
11Thu7:023.46:545.81:100.712:121.79:0411:26Waxing Gibbous11Thu
12Fri8:233.47:386.02:100.21:052.09:0511:25Waxing Gibbous12Fri
13Sat9:253.68:206.12:59-0.31:562.39:0511:25Waxing Gibbous13Sat
14Sun10:163.78:596.13:43-0.62:422.59:0611:25Waxing Gibbous14Sun
15Mon11:013.89:366.04:23-0.73:242.69:0711:24Full Moon15Mon
16Tue11:413.810:125.95:01-0.74:042.69:0711:24Full Moon16Tue
17Wed12:183.95:37-0.74:432.69:0811:23Full Moon17Wed
18Thu12:543.96:12-0.55:242.69:0811:23Full Moon18Thu
19Fri1:293.96:46-0.36:082.69:0911:22Waning Gibbous19Fri
20Sat12:015.22:044.07:180.06:552.69:1011:22Waning Gibbous20Sat
21Sun12:404.82:424.07:500.37:482.69:1111:21Waning Gibbous21Sun
22Mon1:224.33:224.28:240.78:562.69:1111:20Waning Gibbous22Mon
23Tue2:143.84:034.38:591.110:212.49:1211:20Third Quarter23Tue
24Wed3:273.44:444.69:391.511:422.09:1311:19Third Quarter24Wed
25Thu5:033.15:264.810:251.99:1311:18Third Quarter25Thu
26Fri6:413.06:085.212:471.411:17 AM2.29:1411:18Third Quarter26Fri
27Sat8:023.26:525.51:400.812:122.49:1511:17Waning Crescent27Sat
28Sun8:593.47:375.92:260.21:072.59:1611:16Waning Crescent28Sun
29Mon9:443.78:236.33:08-0.42:012.59:1611:15Waning Crescent29Mon
30Tue10:253.99:096.63:50-0.82:532.49:1711:14New Moon30Tue
31Wed11:064.19:566.74:32-1.13:442.29:1811:14New Moon31Wed
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 8:00 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 spring phase. Tonight's moon is 98% 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 (98% 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