Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 24m at 5:01 pm (2.8 ft)
Next high tide : 11:09 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:253.58:266.43:04-0.61:591.95:498:12Waning Crescent1Sun
2Mon10:253.69:096.73:52-1.22:462.25:498:13New Moon2Mon
3Tue11:233.79:556.84:41-1.73:352.45:488:13New Moon3Tue
4Wed12:203.85:31-1.94:282.55:488:14New Moon4Wed
5Thu1:153.86:22-1.85:262.65:488:14Waxing Crescent5Thu
6Fri2:103.97:13-1.66:312.65:488:15Waxing Crescent6Fri
7Sat12:305.93:044.08:03-1.27:422.65:488:15Waxing Crescent7Sat
8Sun1:285.33:584.28:53-0.79:042.55:488:16First Quarter8Sun
9Mon2:324.64:484.59:44-0.210:352.25:488:16First Quarter9Mon
10Tue3:483.95:334.710:330.411:581.75:478:17First Quarter10Tue
11Wed5:143.46:135.011:191.05:478:17First Quarter11Wed
12Thu6:413.16:505.21:071.212:021.55:478:18Waxing Gibbous12Thu
13Fri8:053.17:235.42:020.612:422.05:478:18Waxing Gibbous13Fri
14Sat9:133.27:555.52:480.21:202.45:488:18Waxing Gibbous14Sat
15Sun10:063.38:275.63:27-0.21:572.65:488:19Waxing Gibbous15Sun
16Mon10:513.38:585.74:02-0.42:332.85:488:19Full Moon16Mon
17Tue11:323.49:315.74:37-0.63:082.85:488:19Full Moon17Tue
18Wed12:103.45:12-0.73:452.95:488:20Full Moon18Wed
19Thu12:473.55:48-0.74:232.95:488:20Full Moon19Thu
20Fri1:233.56:23-0.75:052.95:488:20Waning Gibbous20Fri
21Sat1:593.66:58-0.65:542.95:498:20Waning Gibbous21Sat
22Sun2:363.77:32-0.56:482.95:498:21Waning Gibbous22Sun
23Mon12:354.93:133.98:06-0.27:532.85:498:21Waning Gibbous23Mon
24Tue1:224.53:484.28:410.29:142.65:498:21Third Quarter24Tue
25Wed2:243.94:244.59:190.610:442.15:508:21Third Quarter25Wed
26Thu3:483.45:025.010:001.15:508:21Third Quarter26Thu
27Fri5:293.05:425.412:021.410:45 AM1.65:508:21Third Quarter27Fri
28Sat7:103.06:265.91:080.611:35 AM2.05:518:21Waning Crescent28Sat
29Sun8:343.27:146.32:05-0.212:312.35:518:21Waning Crescent29Sun
30Mon9:373.48:046.72:56-0.91:302.55:528:21Waning 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 8:05 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 97% 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 Full Moon (97% 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