Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 5:05 am (-1.7 ft)
Next high tide : in 5h 12m at 9:32 pm (6.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:58 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:225.06:463.511:58-0.211:252.36:315:59First Quarter1Fri
2Sat5:325.17:353.812:55-0.46:295:59Waxing Gibbous2Sat
3Sun6:335.18:124.012:332.01:41-0.56:286:00Waxing Gibbous3Sun
4Mon7:245.28:434.21:261.72:19-0.46:276:01Waxing Gibbous4Mon
5Tue8:075.19:114.32:101.42:52-0.36:256:02Waxing Gibbous5Tue
6Wed8:465.09:374.42:491.23:22-0.16:246:03Full Moon6Wed
7Thu9:234.810:034.53:261.03:490.26:236:04Full Moon7Thu
8Fri9:594.610:284.64:020.94:150.56:216:05Full Moon8Fri
9Sat10:364.310:544.64:380.84:400.86:206:06Full Moon9Sat
10Sun12:153.96:170.76:041.27:197:06Waning Gibbous10Sun
11Mon12:224.612:583.66:580.86:291.57:177:07Waning Gibbous11Mon
12Tue12:514.61:493.27:440.86:551.97:167:08Waning Gibbous12Tue
13Wed1:254.52:582.98:410.97:232.27:147:09Waning Gibbous13Wed
14Thu2:074.44:432.79:550.98:042.57:137:10Third Quarter14Thu
15Fri3:064.36:252.911:130.79:372.77:127:11Third Quarter15Fri
16Sat4:234.37:243.112:180.57:107:11Third Quarter16Sat
17Sun5:374.47:583.41:090.17:097:12Third Quarter17Sun
18Mon6:414.78:273.812:402.31:53-0.17:077:13Waning Crescent18Mon
19Tue7:384.98:554.21:381.82:31-0.37:067:14Waning Crescent19Tue
20Wed8:305.19:254.62:281.33:08-0.47:057:15Waning Crescent20Wed
21Thu9:205.29:585.03:160.73:44-0.37:037:16New Moon21Thu
22Fri10:095.210:325.44:030.24:21-0.17:027:16New Moon22Fri
23Sat11:004.911:105.74:53-0.25:000.27:007:17New Moon23Sat
24Sun11:554.611:515.85:45-0.55:400.76:597:18Waxing Crescent24Sun
25Mon12:544.26:39-0.66:231.16:587:19Waxing Crescent25Mon
26Tue12:365.72:003.87:38-0.57:101.66:567:20Waxing Crescent26Tue
27Wed1:265.53:203.58:43-0.48:062.16:557:20Waxing Crescent27Wed
28Thu2:245.14:513.49:58-0.29:272.46:537:21First Quarter28Thu
29Fri3:374.86:133.611:14-0.111:052.46:527:22First Quarter29Fri
30Sat4:584.67:153.812:22-0.16:517:23First Quarter30Sat
31Sun6:134.58:004.112:282.11:190.06:497:24Waxing Gibbous31Sun
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 1:18 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 1% 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 New Moon (1% 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