Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 28m at 11:21 am (1.1 ft)
Next high tide : 6:14 pm (5.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:48 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:014.84:544.19:37-0.49:572.75:498:12First Quarter1Sun
2Mon3:104.25:404.310:290.111:262.45:498:13First Quarter2Mon
3Tue4:303.76:184.511:170.55:498:13First Quarter3Tue
4Wed5:503.46:514.812:381.811:58 AM1.05:488:14First Quarter4Wed
5Thu7:093.27:205.01:371.312:351.55:488:14Waxing Gibbous5Thu
6Fri8:213.17:475.22:230.81:091.95:488:15Waxing Gibbous6Fri
7Sat9:203.28:135.43:030.31:402.25:488:15Waxing Gibbous7Sat
8Sun10:113.38:415.63:38-0.12:112.55:488:16Waxing Gibbous8Sun
9Mon10:573.39:105.74:13-0.42:432.75:488:16Full Moon9Mon
10Tue11:423.49:415.74:49-0.63:172.85:488:17Full Moon10Tue
11Wed12:263.45:26-0.73:522.95:478:17Full Moon11Wed
12Thu1:103.46:04-0.84:302.95:478:18Full Moon12Thu
13Fri1:533.46:43-0.85:153.05:478:18Waning Gibbous13Fri
14Sat2:363.57:22-0.86:093.05:488:18Waning Gibbous14Sat
15Sun12:135.33:193.78:02-0.67:143.05:488:19Waning Gibbous15Sun
16Mon1:025.03:593.98:43-0.48:342.95:488:19Waning Gibbous16Mon
17Tue2:004.54:364.39:260.010:092.55:488:19Third Quarter17Tue
18Wed3:163.95:124.710:090.411:351.95:488:20Third Quarter18Wed
19Thu4:493.45:485.210:540.95:488:20Third Quarter19Thu
20Fri6:243.26:275.712:461.111:40 AM1.45:488:20Waning Crescent20Fri
21Sat7:553.27:106.21:470.212:281.95:498:20Waning Crescent21Sat
22Sun9:103.37:556.52:41-0.61:192.25:498:21Waning Crescent22Sun
23Mon10:113.58:416.83:31-1.22:132.55:498:21Waning Crescent23Mon
24Tue11:063.79:286.84:20-1.53:072.65:498:21New Moon24Tue
25Wed11:583.810:166.75:07-1.74:012.65:508:21New Moon25Wed
26Thu12:463.95:54-1.64:572.65:508:21New Moon26Thu
27Fri1:323.96:40-1.45:552.65:508:21Waxing Crescent27Fri
28Sat2:174.07:23-1.06:552.65:518:21Waxing Crescent28Sat
29Sun12:435.43:024.18:04-0.68:002.65:518:21Waxing Crescent29Sun
30Mon1:344.73:474.38:440.09:162.55:528:21Waxing Crescent30Mon
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 2:47 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 transitional phase. Tonight's moon is 35% 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 shifting between spring and neap.

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 Third Quarter (35% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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