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 47m 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 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:534.45:554.710:56-0.111:551.95:498:12First Quarter1Sun
2Mon5:174.06:415.011:510.25:498:13First Quarter2Mon
3Tue6:373.87:235.41:051.312:420.65:488:13Waxing Gibbous3Tue
4Wed7:513.78:015.62:030.71:281.05:488:14Waxing Gibbous4Wed
5Thu8:533.78:365.82:530.12:111.45:488:14Waxing Gibbous5Thu
6Fri9:483.79:105.93:37-0.32:501.75:488:15Waxing Gibbous6Fri
7Sat10:383.79:425.84:18-0.53:262.05:488:16Full Moon7Sat
8Sun11:263.710:135.84:57-0.74:022.35:488:16Full Moon8Sun
9Mon12:123.75:35-0.74:372.55:488:16Full Moon9Mon
10Tue12:573.76:12-0.65:152.65:488:17Full Moon10Tue
11Wed1:433.76:50-0.55:572.85:488:17Waning Gibbous11Wed
12Thu2:303.77:28-0.36:442.95:488:18Waning Gibbous12Thu
13Fri12:334.83:213.78:08-0.17:393.05:488:18Waning Gibbous13Fri
14Sat1:154.44:123.88:500.28:533.05:488:19Waning Gibbous14Sat
15Sun2:064.04:574.09:350.510:252.85:488:19Third Quarter15Sun
16Mon3:153.65:364.310:220.711:452.45:488:19Third Quarter16Mon
17Tue4:393.36:104.611:081.05:488:20Third Quarter17Tue
18Wed6:013.26:434.912:471.911:52 AM1.35:488:20Third Quarter18Wed
19Thu7:173.37:175.31:371.212:361.55:488:20Waning Crescent19Thu
20Fri8:223.47:535.72:220.61:201.75:488:20Waning Crescent20Fri
21Sat9:183.68:306.13:04-0.12:051.95:498:20Waning Crescent21Sat
22Sun10:103.79:116.43:46-0.72:512.05:498:21New Moon22Sun
23Mon11:013.99:536.64:30-1.13:382.15:498:21New Moon23Mon
24Tue11:524.010:396.65:16-1.44:282.25:508:21New Moon24Tue
25Wed12:444.16:03-1.55:232.25:508:21Waxing Crescent25Wed
26Thu1:354.26:51-1.46:242.35:508:21Waxing Crescent26Thu
27Fri12:216.02:294.47:39-1.17:302.35:518:21Waxing Crescent27Fri
28Sat1:185.53:244.68:29-0.78:472.25:518:21Waxing Crescent28Sat
29Sun2:224.84:204.89:22-0.210:142.05:518:21First Quarter29Sun
30Mon3:384.25:135.110:160.311:391.65:528:21First Quarter30Mon
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