Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 1h 41m at 11:35 pm (1.7 ft)
Next high tide : 4:52 am (3.4 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Nov 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:535.74:472.15:570.07:246:08New Moon1Thu
2Fri12:234.111:24 AM5.55:192.46:380.17:256:07Waxing Crescent2Fri
3Sat1:144.011:56 AM5.35:532.77:200.37:266:06Waxing Crescent3Sat
4Sun1:123.811:31 AM5.05:313.07:070.56:275:05Waxing Crescent4Sun
5Mon2:213.812:124.76:203.28:010.76:285:04Waxing Crescent5Mon
6Tue3:373.81:064.37:333.49:020.86:295:04First Quarter6Tue
7Wed4:384.02:244.19:273.310:010.96:305:03First Quarter7Wed
8Thu5:214.23:513.910:523.010:520.96:315:02First Quarter8Thu
9Fri5:554.55:043.911:492.511:361.06:325:01First Quarter9Fri
10Sat6:244.86:064.112:342.06:335:00Waxing Gibbous10Sat
11Sun6:515.17:014.212:161.01:141.46:345:00Waxing Gibbous11Sun
12Mon7:185.57:514.312:531.11:520.86:354:59Waxing Gibbous12Mon
13Tue7:485.88:394.41:281.32:310.26:364:58Waxing Gibbous13Tue
14Wed8:206.29:284.42:051.53:13-0.36:364:57Full Moon14Wed
15Thu8:546.410:214.42:421.73:58-0.66:374:57Full Moon15Thu
16Fri9:336.511:174.33:232.04:45-0.96:384:56Full Moon16Fri
17Sat10:166.44:082.25:36-0.96:394:56Waning Gibbous17Sat
18Sun12:174.211:04 AM6.25:002.56:29-0.86:404:55Waning Gibbous18Sun
19Mon1:214.211:58 AM5.86:012.77:27-0.66:414:55Waning Gibbous19Mon
20Tue2:314.31:015.37:162.98:30-0.36:424:54Third Quarter20Tue
21Wed3:394.52:184.88:502.89:340.06:434:54Third Quarter21Wed
22Thu4:374.83:444.410:232.410:340.36:444:53Third Quarter22Thu
23Fri5:275.15:064.211:381.811:270.76:454:53Third Quarter23Fri
24Sat6:105.46:204.112:381.26:464:52Waning Crescent24Sat
25Sun6:495.67:234.112:161.01:290.76:474:52Waning Crescent25Sun
26Mon7:235.88:174.112:581.32:130.26:484:52Waning Crescent26Mon
27Tue7:555.99:054.11:361.62:52-0.16:494:51New Moon27Tue
28Wed8:246.09:504.02:102.03:29-0.36:504:51New Moon28Wed
29Thu8:535.910:344.02:422.24:05-0.36:514:51New Moon29Thu
30Fri9:225.811:183.93:142.54:41-0.36:524:51New Moon30Fri
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 2:13 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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