Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 31m at 8:53 am (0.7 ft)
Next high tide : 3:57 pm (4.6 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:194.010:066.84:44-1.53:512.25:528:21New Moon1Sat
2Sun12:114.15:32-1.64:462.25:528:21New Moon2Sun
3Mon1:024.26:20-1.65:452.35:538:21Waxing Crescent3Mon
4Tue1:544.37:08-1.46:482.35:538:21Waxing Crescent4Tue
5Wed12:415.92:474.57:56-1.07:562.35:548:21Waxing Crescent5Wed
6Thu1:395.23:414.68:46-0.49:162.25:548:20First Quarter6Thu
7Fri2:454.54:354.89:370.210:431.95:558:20First Quarter7Fri
8Sat4:053.95:255.010:290.85:568:20First Quarter8Sat
9Sun5:333.56:125.212:041.511:22 AM1.35:568:20First Quarter9Sun
10Mon7:013.36:555.41:131.012:121.85:578:19Waxing Gibbous10Mon
11Tue8:203.37:355.52:090.51:012.15:578:19Waxing Gibbous11Tue
12Wed9:193.48:115.62:540.21:462.45:588:19Waxing Gibbous12Wed
13Thu10:063.58:455.73:34-0.12:262.55:598:18Waxing Gibbous13Thu
14Fri10:463.69:185.74:09-0.33:032.65:598:18Full Moon14Fri
15Sat11:223.79:505.74:43-0.43:382.66:008:17Full Moon15Sat
16Sun11:563.710:235.75:16-0.44:142.66:018:17Full Moon16Sun
17Mon12:303.85:49-0.44:522.66:018:16Full Moon17Mon
18Tue1:043.86:21-0.35:332.66:028:16Waning Gibbous18Tue
19Wed1:383.96:54-0.26:182.66:038:15Waning Gibbous19Wed
20Thu12:095.12:144.07:260.07:092.66:038:15Waning Gibbous20Thu
21Fri12:504.72:524.27:590.38:092.66:048:14Waning Gibbous21Fri
22Sat1:394.23:334.48:350.79:272.46:058:13Third Quarter22Sat
23Sun2:433.74:164.69:151.110:532.06:058:13Third Quarter23Sun
24Mon4:123.35:015.010:031.56:068:12Third Quarter24Mon
25Tue5:513.25:475.412:081.410:57 AM1.96:078:11Third Quarter25Tue
26Wed7:223.36:365.81:120.711:56 AM2.26:088:10Waning Crescent26Wed
27Thu8:333.57:276.32:060.012:562.36:088:10Waning Crescent27Thu
28Fri9:273.88:186.62:56-0.61:552.36:098:09Waning Crescent28Fri
29Sat10:144.09:086.83:42-1.12:512.26:108:08New Moon29Sat
30Sun10:594.29:576.84:28-1.43:462.16:118:07New Moon30Sun
31Mon11:434.410:476.75:13-1.44:401.96:118:06New Moon31Mon
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 12:25 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 61% 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 (61% 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