Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 55m at 10:52 am (1.1 ft)
Next high tide : 5:49 pm (5.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:023.69:165.73:490.02:571.85:498:12New Moon1Sat
2Sun10:513.69:486.04:27-0.53:322.05:498:12New Moon2Sun
3Mon11:423.710:236.15:08-0.84:102.35:498:13New Moon3Mon
4Tue12:363.75:52-1.14:522.55:488:13New Moon4Tue
5Wed1:313.76:38-1.25:412.65:488:14Waxing Crescent5Wed
6Thu2:303.77:27-1.16:392.85:488:14Waxing Crescent6Thu
7Fri12:395.63:313.98:18-1.07:502.85:488:15Waxing Crescent7Fri
8Sat1:375.24:294.19:13-0.79:192.75:488:16First Quarter8Sat
9Sun2:474.75:194.410:10-0.410:542.45:488:16First Quarter9Sun
10Mon4:104.26:054.811:060.05:488:16First Quarter10Mon
11Tue5:353.96:475.212:141.711:57 AM0.45:478:17First Quarter11Tue
12Wed6:573.77:275.61:211.012:460.85:478:17Waxing Gibbous12Wed
13Thu8:113.78:055.92:170.31:321.25:478:18Waxing Gibbous13Thu
14Fri9:153.78:416.13:07-0.22:151.65:478:18Waxing Gibbous14Fri
15Sat10:113.79:176.23:52-0.62:572.05:488:19Full Moon15Sat
16Sun11:043.79:526.14:35-0.93:372.25:488:19Full Moon16Sun
17Mon11:553.710:286.05:16-1.04:162.55:488:19Full Moon17Mon
18Tue12:443.75:57-0.94:582.75:488:20Full Moon18Tue
19Wed1:313.76:37-0.85:412.85:488:20Waning Gibbous19Wed
20Thu2:183.77:17-0.66:292.95:488:20Waning Gibbous20Thu
21Fri12:225.13:073.87:57-0.37:233.05:488:20Waning Gibbous21Fri
22Sat1:044.73:573.88:380.08:293.05:498:20Waning Gibbous22Sat
23Sun1:524.24:424.09:210.49:582.95:498:21Third Quarter23Sun
24Mon2:523.85:224.210:060.711:242.55:498:21Third Quarter24Mon
25Tue4:133.45:574.510:501.05:508:21Third Quarter25Tue
26Wed5:383.26:294.812:332.011:32 AM1.45:508:21Third Quarter26Wed
27Thu6:583.17:015.11:261.512:131.65:508:21Waning Crescent27Thu
28Fri8:093.27:345.42:110.912:551.95:518:21Waning Crescent28Fri
29Sat9:063.38:085.82:510.31:382.15:518:21Waning Crescent29Sat
30Sun9:573.58:456.13:30-0.32:212.35:518:21Waning Crescent30Sun
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 2:20 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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