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 1h 14m at 10:20 pm (2.1 ft)
Next high tide (tomorrow) : 3:26 am (3.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:01 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:113.13:474.78:322.011:211.79:1911:13First Quarter1Tue
2Wed5:072.84:334.98:592.49:1911:12First Quarter2Wed
3Thu7:302.95:245.112:341.29:46 AM2.89:2011:11First Quarter3Thu
4Fri8:543.16:185.41:320.611:11 AM3.09:2111:10Waxing Gibbous4Fri
5Sat9:293.47:125.82:200.012:303.19:2211:09Waxing Gibbous5Sat
6Sun9:573.68:046.23:02-0.51:372.99:2211:08Waxing Gibbous6Sun
7Mon10:253.88:526.53:41-0.92:332.79:2311:07Waxing Gibbous7Mon
8Tue10:564.09:406.64:20-1.13:252.49:2411:06Full Moon8Tue
9Wed11:284.210:276.54:58-1.24:182.19:2511:05Full Moon9Wed
10Thu12:024.55:36-1.15:131.89:2611:04Full Moon10Thu
11Fri12:384.86:14-0.76:121.59:2611:03Waning Gibbous11Fri
12Sat12:105.61:165.16:50-0.17:151.39:2711:02Waning Gibbous12Sat
13Sun1:084.91:565.47:270.68:241.19:2811:00Waning Gibbous13Sun
14Mon2:164.12:425.58:041.39:460.99:2910:59Third Quarter14Mon
15Tue3:473.53:355.68:462.011:140.69:2910:58Third Quarter15Tue
16Wed5:453.24:375.69:442.69:3010:57Third Quarter16Wed
17Thu7:413.45:425.612:330.311:07 AM3.09:3110:56Third Quarter17Thu
18Fri8:503.76:465.71:39-0.112:313.19:3210:55Waning Crescent18Fri
19Sat9:313.97:435.82:32-0.31:403.09:3210:53Waning Crescent19Sat
20Sun10:024.08:325.83:15-0.42:312.79:3310:52Waning Crescent20Sun
21Mon10:304.19:135.83:52-0.43:122.59:3410:51Waning Crescent21Mon
22Tue10:544.19:495.74:25-0.33:492.39:3510:50New Moon22Tue
23Wed11:184.210:245.54:54-0.14:242.19:3510:48New Moon23Wed
24Thu11:414.310:585.35:190.15:011.99:3610:47New Moon24Thu
25Fri12:034.45:430.45:401.89:3710:46New Moon25Fri
26Sat12:264.66:050.86:211.79:3810:44Waxing Crescent26Sat
27Sun12:124.512:504.76:261.27:061.69:3810:43Waxing Crescent27Sun
28Mon12:554.01:154.86:461.77:581.69:3910:42Waxing Crescent28Mon
29Tue1:493.51:444.87:042.29:041.59:4010:41Waxing Crescent29Tue
30Wed3:103.12:224.97:192.610:301.39:4110:39First Quarter30Wed
31Thu3:194.911:511.09:4110:38First Quarter31Thu
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 12:53 am — 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 62% 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 (62% 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