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 21m at 11:45 pm (5.3 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:593.86:075.011:190.58:5611:18Third Quarter1Sat
2Sun6:223.56:515.212:481.212:101.08:5611:19Waning Crescent2Sun
3Mon7:403.47:315.41:480.712:581.48:5511:20Waning Crescent3Mon
4Tue8:453.48:075.62:380.21:421.78:5511:20Waning Crescent4Tue
5Wed9:383.58:405.63:20-0.12:212.08:5511:21Waning Crescent5Wed
6Thu10:243.59:125.73:58-0.32:582.28:5511:21New Moon6Thu
7Fri11:073.69:435.64:33-0.53:322.38:5511:22New Moon7Fri
8Sat11:473.610:145.65:08-0.54:062.58:5511:22New Moon8Sat
9Sun12:263.65:42-0.54:432.58:5511:23New Moon9Sun
10Mon1:053.66:16-0.55:232.68:5411:23New Moon10Mon
11Tue1:453.76:51-0.46:072.78:5411:24Waxing Crescent11Tue
12Wed2:263.77:25-0.26:572.78:5411:24Waxing Crescent12Wed
13Thu12:384.73:103.88:010.17:562.78:5411:25Waxing Crescent13Thu
14Fri1:224.33:534.08:380.39:122.68:5411:25Waxing Crescent14Fri
15Sat2:183.84:354.39:190.710:382.38:5511:25First Quarter15Sat
16Sun3:343.45:144.610:051.011:521.88:5511:26First Quarter16Sun
17Mon5:043.25:535.010:531.38:5511:26First Quarter17Mon
18Tue6:313.16:335.412:541.111:43 AM1.68:5511:26Waxing Gibbous18Tue
19Wed7:493.27:165.91:470.412:341.88:5511:26Waxing Gibbous19Wed
20Thu8:523.58:016.32:36-0.31:281.98:5511:27Waxing Gibbous20Thu
21Fri9:473.78:476.63:22-0.92:212.08:5611:27Waxing Gibbous21Fri
22Sat10:373.99:346.84:09-1.33:142.08:5611:27Full Moon22Sat
23Sun11:274.110:226.74:55-1.64:092.08:5611:27Full Moon23Sun
24Mon12:164.25:42-1.65:062.08:5611:27Full Moon24Mon
25Tue1:054.46:29-1.56:072.08:5711:28Waning Gibbous25Tue
26Wed12:056.01:544.57:15-1.17:112.08:5711:28Waning Gibbous26Wed
27Thu1:015.42:454.78:01-0.68:222.08:5711:28Waning Gibbous27Thu
28Fri2:014.73:384.98:480.09:441.88:5811:28Third Quarter28Fri
29Sat3:134.04:315.09:380.611:101.58:5811:28Third Quarter29Sat
30Sun4:383.55:225.210:301.28:5911:28Third Quarter30Sun
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 94% 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 (94% 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