Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 08m at 5:47 pm (2.8 ft)
Next high tide : 11:45 pm (5.3 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:596.810:474.32:462.04:16-1.610:188:08New Moon1Wed
2Thu9:476.611:334.53:401.95:00-1.510:188:09New Moon2Thu
3Fri10:386.24:371.95:45-1.310:188:10Waxing Crescent3Fri
4Sat12:214.611:31 AM5.65:381.96:30-0.810:188:11Waxing Crescent4Sat
5Sun1:104.812:294.96:451.97:16-0.210:188:12Waxing Crescent5Sun
6Mon2:034.91:364.28:031.88:060.410:188:13First Quarter6Mon
7Tue2:585.03:003.69:321.69:001.010:188:13First Quarter7Tue
8Wed3:545.24:373.210:561.29:591.510:188:14First Quarter8Wed
9Thu4:485.36:113.212:080.710:188:15First Quarter9Thu
10Fri5:385.47:273.31:050.210:188:16Waxing Gibbous10Fri
11Sat6:255.58:203.51:51-0.110:188:17Waxing Gibbous11Sat
12Sun7:065.69:023.612:482.32:30-0.310:188:18Waxing Gibbous12Sun
13Mon7:435.69:363.71:322.33:04-0.510:178:19Waxing Gibbous13Mon
14Tue8:175.610:083.82:102.33:35-0.510:178:20Full Moon14Tue
15Wed8:505.610:383.82:462.34:05-0.510:178:21Full Moon15Wed
16Thu9:225.511:083.93:222.24:35-0.410:178:22Full Moon16Thu
17Fri9:555.311:394.03:592.25:04-0.310:168:23Full Moon17Fri
18Sat10:295.04:392.25:32-0.110:168:24Waning Gibbous18Sat
19Sun12:104.011:06 AM4.75:232.26:010.210:168:25Waning Gibbous19Sun
20Mon12:434.111:45 AM4.36:112.16:290.510:158:26Waning Gibbous20Mon
21Tue1:184.212:323.87:082.17:000.910:158:27Waning Gibbous21Tue
22Wed1:584.41:363.38:222.07:361.310:148:28Third Quarter22Wed
23Thu2:454.63:102.99:491.68:241.710:148:29Third Quarter23Thu
24Fri3:374.84:572.811:051.19:292.010:138:30Third Quarter24Fri
25Sat4:325.16:273.012:080.410:138:31Third Quarter25Sat
26Sun5:265.57:293.31:00-0.210:128:32Waning Crescent26Sun
27Mon6:205.98:153.61:46-0.810:118:33Waning Crescent27Mon
28Tue7:126.38:573.912:512.02:30-1.210:118:34Waning Crescent28Tue
29Wed8:026.59:374.21:481.83:12-1.510:108:35New Moon29Wed
30Thu8:516.510:184.52:421.53:54-1.510:098:36New Moon30Thu
31Fri9:406.310:594.73:351.34:36-1.310:098:37New Moon31Fri
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 8:46 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 94% 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 Waning Gibbous (94% 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