Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 7:17 am (-0.4 ft)
Next high tide : in 4h 31m at 11:45 pm (5.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:344.83:234.68:300.09:092.15:528:21Waxing Crescent1Mon
2Tue2:344.24:164.79:160.510:322.05:538:21First Quarter2Tue
3Wed3:483.65:064.810:061.111:511.75:538:21First Quarter3Wed
4Thu5:143.25:524.910:561.55:548:21First Quarter4Thu
5Fri6:413.16:355.112:581.311:46 AM1.95:548:21First Quarter5Fri
6Sat7:593.27:155.21:530.812:352.25:558:20Waxing Gibbous6Sat
7Sun8:573.37:535.42:360.51:212.35:558:20Waxing Gibbous7Sun
8Mon9:403.48:285.53:140.22:032.45:568:20Waxing Gibbous8Mon
9Tue10:173.69:015.73:48-0.12:422.45:578:20Waxing Gibbous9Tue
10Wed10:523.79:345.74:21-0.33:202.45:578:19Full Moon10Wed
11Thu11:263.810:085.74:53-0.43:582.45:588:19Full Moon11Thu
12Fri12:003.95:26-0.54:392.45:588:18Full Moon12Fri
13Sat12:354.06:00-0.55:222.45:598:18Full Moon13Sat
14Sun1:104.16:33-0.36:102.36:008:18Waning Gibbous14Sun
15Mon12:015.21:474.37:07-0.17:042.36:008:17Waning Gibbous15Mon
16Tue12:474.82:274.57:430.28:062.26:018:17Waning Gibbous16Tue
17Wed1:414.33:124.78:220.69:232.06:028:16Third Quarter17Wed
18Thu2:493.84:015.09:061.010:481.66:028:16Third Quarter18Thu
19Fri4:193.44:545.310:001.56:038:15Third Quarter19Fri
20Sat5:553.35:475.712:051.011:00 AM1.86:048:14Third Quarter20Sat
21Sun7:223.46:416.01:110.412:042.06:048:14Waning Crescent21Sun
22Mon8:303.67:356.32:07-0.21:072.16:058:13Waning Crescent22Mon
23Tue9:243.98:266.52:57-0.72:072.16:068:12Waning Crescent23Tue
24Wed10:104.19:156.63:43-1.03:022.06:078:12New Moon24Wed
25Thu10:534.310:026.54:27-1.13:551.96:078:11New Moon25Thu
26Fri11:364.510:496.25:10-1.04:471.86:088:10New Moon26Fri
27Sat12:184.65:51-0.85:391.76:098:09Waxing Crescent27Sat
28Sun1:004.76:31-0.46:321.76:108:09Waxing Crescent28Sun
29Mon12:235.31:414.77:090.07:281.86:108:08Waxing Crescent29Mon
30Tue1:124.72:254.77:460.68:291.86:118:07Waxing Crescent30Tue
31Wed2:074.13:124.78:241.19:421.86:128:06First Quarter31Wed
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 3:31 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 spring phase. Tonight's moon is 93% 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 Waning Gibbous (93% 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