Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 48m at 2:25 pm (2.9 ft)
Next high tide : 8:50 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:434.33:452.69:201.27:232.39:389:05First Quarter1Sun
2Mon2:364.46:062.710:440.98:322.79:369:06First Quarter2Mon
3Tue3:424.57:183.011:510.410:232.89:359:07First Quarter3Tue
4Wed4:494.87:493.312:44-0.19:349:08First Quarter4Wed
5Thu5:515.18:163.61:28-0.69:329:09Waxing Gibbous5Thu
6Fri6:475.58:443.912:422.32:07-1.09:319:10Waxing Gibbous6Fri
7Sat7:385.89:134.11:341.92:45-1.29:309:11Waxing Gibbous7Sat
8Sun9:266.010:454.53:231.54:23-1.210:2810:11Full Moon8Sun
9Mon10:155.911:194.84:121.05:00-1.010:2710:12Full Moon9Mon
10Tue11:055.611:555.05:030.65:38-0.610:2610:13Full Moon10Tue
11Wed11:585.15:570.36:15-0.110:2410:14Waning Gibbous11Wed
12Thu12:335.212:564.56:540.26:540.610:2310:15Waning Gibbous12Thu
13Fri1:145.32:023.87:560.17:341.310:2110:16Waning Gibbous13Fri
14Sat2:005.23:283.39:080.18:211.910:2010:17Third Quarter14Sat
15Sun2:555.15:183.110:310.19:302.510:1910:17Third Quarter15Sun
16Mon4:034.97:033.311:51-0.111:112.710:1710:18Third Quarter16Mon
17Tue5:194.88:113.61:01-0.310:1610:19Third Quarter17Tue
18Wed6:314.88:523.812:412.61:57-0.410:1410:20Waning Crescent18Wed
19Thu7:334.89:234.01:462.32:42-0.510:1310:21Waning Crescent19Thu
20Fri8:224.99:494.12:342.03:18-0.410:1210:21Waning Crescent20Fri
21Sat9:044.910:124.23:121.73:50-0.310:1010:22Waning Crescent21Sat
22Sun9:414.810:344.33:451.44:17-0.110:0910:23New Moon22Sun
23Mon10:154.710:554.44:181.24:430.210:0710:24New Moon23Mon
24Tue10:504.511:174.54:511.05:070.510:0610:25New Moon24Tue
25Wed11:274.211:404.65:260.85:300.810:0510:26New Moon25Wed
26Thu12:073.96:030.75:531.210:0310:26Waxing Crescent26Thu
27Fri12:044.612:513.66:430.66:161.610:0210:27Waxing Crescent27Fri
28Sat12:304.61:453.27:280.66:392.010:0010:28Waxing Crescent28Sat
29Sun1:004.63:012.98:210.67:032.49:5910:29Waxing Crescent29Sun
30Mon1:374.55:032.89:320.67:322.79:5810:30First Quarter30Mon
31Tue2:294.47:003.010:530.49:013.09:5610:30First Quarter31Tue
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 5:37 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 95% 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 Waxing Gibbous (95% 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