Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 7h 27m at 3:19 am (-0.2 ft)
Next high tide (tomorrow) : 10:07 am (3.3 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:443.91:555.17:191.89:021.29:4210:36Waxing Crescent1Thu
2Fri3:053.42:415.37:502.310:270.99:4310:35First Quarter2Fri
3Sat5:043.23:435.48:352.811:480.59:4410:34First Quarter3Sat
4Sun7:023.34:575.510:053.19:4410:32First Quarter4Sun
5Mon8:093.76:095.812:570.011:47 AM3.19:4510:31Waxing Gibbous5Mon
6Tue8:484.07:156.11:54-0.41:052.99:4610:29Waxing Gibbous6Tue
7Wed9:214.28:146.32:42-0.72:072.49:4710:28Waxing Gibbous7Wed
8Thu9:534.59:066.43:25-0.83:012.09:4710:26Waxing Gibbous8Thu
9Fri10:254.89:556.24:04-0.83:501.59:4810:25Full Moon9Fri
10Sat10:585.010:435.94:41-0.54:401.29:4910:24Full Moon10Sat
11Sun11:315.211:325.45:170.05:291.09:4910:22Full Moon11Sun
12Mon12:045.35:510.56:200.99:5010:21Waning Gibbous12Mon
13Tue12:244.812:375.46:241.27:120.99:5110:19Waning Gibbous13Tue
14Wed1:204.21:125.36:551.88:090.99:5210:18Waning Gibbous14Wed
15Thu2:293.71:495.17:262.49:181.09:5210:16Waning Gibbous15Thu
16Fri4:093.42:354.98:003.010:401.09:5310:15Third Quarter16Fri
17Sat6:193.53:394.79:003.411:570.99:5410:14Third Quarter17Sat
18Sun7:523.74:584.611:093.59:5510:12Third Quarter18Sun
19Mon8:283.96:094.71:000.712:343.39:5510:11Third Quarter19Mon
20Tue8:524.07:074.91:480.51:283.09:5610:09Waning Crescent20Tue
21Wed9:134.27:545.12:270.32:072.79:5710:08Waning Crescent21Wed
22Thu9:324.38:345.32:580.32:422.39:5810:06Waning Crescent22Thu
23Fri9:524.59:125.33:260.23:162.09:5810:05Waning Crescent23Fri
24Sat10:124.79:495.33:530.33:511.69:5910:03New Moon24Sat
25Sun10:344.910:275.14:180.54:281.310:0010:02New Moon25Sun
26Mon10:575.111:104.94:440.85:091.010:0110:01New Moon26Mon
27Tue11:235.411:584.55:101.25:540.710:019:59New Moon27Tue
28Wed11:525.55:371.66:430.510:029:58Waxing Crescent28Wed
29Thu12:554.112:255.66:062.17:390.410:039:56Waxing Crescent29Thu
30Fri2:043.71:055.66:372.68:460.410:049:55Waxing Crescent30Fri
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 6:43 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 84% 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 Waxing Gibbous (84% 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