Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 9m at 9:30 am (1.3 ft)
Next high tide : 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:533.55:304.510:221.15:528:21First Quarter1Wed
2Thu5:173.26:104.712:082.011:09 AM1.55:528:21First Quarter2Thu
3Fri6:403.16:475.01:091.511:54 AM1.85:538:21First Quarter3Fri
4Sat7:543.17:225.21:581.012:382.05:538:21Waxing Gibbous4Sat
5Sun8:513.37:565.42:390.61:212.25:548:21Waxing Gibbous5Sun
6Mon9:373.48:305.63:150.22:032.35:548:20Waxing Gibbous6Mon
7Tue10:173.69:045.83:50-0.22:432.45:558:20Waxing Gibbous7Tue
8Wed10:573.79:406.04:26-0.53:242.45:558:20Full Moon8Wed
9Thu11:363.810:176.05:02-0.74:062.45:568:20Full Moon9Thu
10Fri12:163.95:40-0.84:512.45:568:19Full Moon10Fri
11Sat12:564.16:18-0.85:422.45:578:19Waning Gibbous11Sat
12Sun1:384.26:58-0.76:372.35:588:19Waning Gibbous12Sun
13Mon12:295.42:234.47:38-0.47:402.35:588:18Waning Gibbous13Mon
14Tue1:234.93:114.68:210.08:562.15:598:18Waning Gibbous14Tue
15Wed2:284.34:024.99:090.410:231.86:008:17Third Quarter15Wed
16Thu3:513.84:545.210:020.911:451.36:008:17Third Quarter16Thu
17Fri5:243.55:455.610:591.46:018:17Third Quarter17Fri
18Sat6:553.46:375.912:560.711:58 AM1.76:028:16Waning Crescent18Sat
19Sun8:123.67:276.21:570.112:572.06:028:15Waning Crescent19Sun
20Mon9:133.88:156.32:49-0.41:542.16:038:15Waning Crescent20Mon
21Tue10:034.09:016.43:35-0.82:472.16:048:14Waning Crescent21Tue
22Wed10:484.19:446.34:18-0.93:362.16:048:14New Moon22Wed
23Thu11:304.210:266.14:59-0.94:232.16:058:13New Moon23Thu
24Fri12:114.35:39-0.85:092.16:068:12New Moon24Fri
25Sat12:504.36:16-0.55:562.26:068:12Waxing Crescent25Sat
26Sun1:284.36:52-0.26:442.26:078:11Waxing Crescent26Sun
27Mon12:315.02:074.37:260.27:362.26:088:10Waxing Crescent27Mon
28Tue1:144.52:484.48:000.78:362.36:098:09Waxing Crescent28Tue
29Wed2:044.03:324.48:341.29:512.26:098:09First Quarter29Wed
30Thu3:093.54:194.59:141.611:121.96:108:08First Quarter30Thu
31Fri4:383.15:074.710:012.06:118:07First Quarter31Fri
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 1:02 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 50% 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 Third Quarter (50% 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