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 21m at 3:56 am (-0.4 ft)
Next high tide : 10:51 am (3.4 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 - Apr 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:334.94:033.19:120.18:032.59:5510:31Third Quarter1Thu
2Fri2:344.75:293.210:260.19:382.69:5310:32Third Quarter2Fri
3Sat3:534.66:323.511:34-0.111:212.49:5210:33Third Quarter3Sat
4Sun5:164.67:193.912:34-0.29:5010:34Third Quarter4Sun
5Mon6:314.77:584.412:391.91:25-0.39:4910:34Waning Crescent5Mon
6Tue7:374.88:344.81:421.32:11-0.39:4810:35Waning Crescent6Tue
7Wed8:364.99:095.22:360.72:53-0.19:4610:36Waning Crescent7Wed
8Thu9:294.89:455.53:250.13:320.19:4510:37New Moon8Thu
9Fri10:204.710:205.74:13-0.34:100.59:4410:38New Moon9Fri
10Sat11:124.510:575.85:01-0.64:490.99:4210:38New Moon10Sat
11Sun12:054.25:48-0.75:281.39:4110:39New Moon11Sun
12Mon1:013.96:37-0.66:091.79:4010:40Waxing Crescent12Mon
13Tue12:155.42:013.67:27-0.46:522.19:3810:41Waxing Crescent13Tue
14Wed12:585.03:123.48:20-0.17:422.49:3710:42Waxing Crescent14Wed
15Thu1:454.64:333.49:220.28:512.79:3610:42First Quarter15Thu
16Fri2:444.25:463.510:290.410:312.79:3510:43First Quarter16Fri
17Sat4:003.96:413.611:320.511:572.59:3310:44First Quarter17Sat
18Sun5:193.87:213.912:260.69:3210:45First Quarter18Sun
19Mon6:273.87:524.11:002.11:100.69:3110:46First Quarter19Mon
20Tue7:253.88:184.31:471.71:470.79:3010:46Waxing Gibbous20Tue
21Wed8:153.98:424.62:261.22:190.89:2810:47Waxing Gibbous21Wed
22Thu8:583.99:064.93:020.82:481.09:2710:48Waxing Gibbous22Thu
23Fri9:394.09:315.13:370.43:161.29:2610:49Waxing Gibbous23Fri
24Sat10:203.99:585.34:120.03:451.49:2510:50Full Moon24Sat
25Sun11:043.910:275.54:50-0.34:161.69:2410:51Full Moon25Sun
26Mon11:513.811:005.55:30-0.54:491.89:2310:51Full Moon26Mon
27Tue12:423.76:14-0.65:272.09:2110:52Waning Gibbous27Tue
28Wed1:383.57:01-0.76:102.39:2010:53Waning Gibbous28Wed
29Thu12:215.42:423.57:52-0.67:032.59:1910:54Waning Gibbous29Thu
30Fri1:125.13:533.58:49-0.58:142.69:1810:55Waning Gibbous30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 7:23 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 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