Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 4:10 am (-0.4 ft)
Next high tide : in 5h 42m at 8:36 pm (5.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:344.09:546.34:17-1.03:381.56:117:49Full Moon1Sat
2Sun11:333.910:356.55:06-1.44:181.96:107:49Full Moon2Sun
3Mon12:353.75:59-1.65:032.26:097:50Waning Gibbous3Mon
4Tue1:413.66:53-1.65:542.56:087:51Waning Gibbous4Tue
5Wed12:106.12:523.67:50-1.46:552.76:077:52Waning Gibbous5Wed
6Thu1:065.64:063.68:51-1.08:132.86:067:53Waning Gibbous6Thu
7Fri2:115.15:113.89:55-0.79:562.76:057:53Third Quarter7Fri
8Sat3:294.56:044.110:57-0.311:322.46:047:54Third Quarter8Sat
9Sun4:544.16:474.411:520.06:037:55Third Quarter9Sun
10Mon6:133.87:234.712:471.812:390.46:027:56Waning Crescent10Mon
11Tue7:253.77:535.01:471.21:210.86:017:57Waning Crescent11Tue
12Wed8:273.68:205.22:340.71:561.26:007:58Waning Crescent12Wed
13Thu9:203.58:455.33:150.32:271.66:007:58Waning Crescent13Thu
14Fri10:083.59:105.43:51-0.12:552.05:597:59New Moon14Fri
15Sat10:543.49:355.54:25-0.33:212.25:588:00New Moon15Sat
16Sun11:403.410:025.55:00-0.53:492.55:578:01New Moon16Sun
17Mon12:263.45:36-0.54:182.65:578:01New Moon17Mon
18Tue1:143.36:13-0.54:502.85:568:02New Moon18Tue
19Wed2:053.36:53-0.55:262.95:558:03Waxing Crescent19Wed
20Thu3:023.37:34-0.46:113.05:558:04Waxing Crescent20Thu
21Fri12:215.04:013.48:18-0.37:113.15:548:04Waxing Crescent21Fri
22Sat1:074.74:483.59:05-0.18:343.15:548:05Waxing Crescent22Sat
23Sun2:044.35:233.89:530.110:172.85:538:06First Quarter23Sun
24Mon3:193.95:524.210:400.311:412.35:528:07First Quarter24Mon
25Tue4:463.66:224.611:240.65:528:07First Quarter25Tue
26Wed6:113.56:535.112:461.512:071.05:518:08Waxing Gibbous26Wed
27Thu7:303.47:275.71:420.712:491.35:518:09Waxing Gibbous27Thu
28Fri8:413.58:056.22:33-0.21:331.65:518:09Waxing Gibbous28Fri
29Sat9:443.68:466.53:21-0.92:191.95:508:10Waxing Gibbous29Sat
30Sun10:433.79:296.84:10-1.43:062.25:508:11Full Moon30Sun
31Mon11:413.710:156.85:00-1.83:552.45:508:11Full Moon31Mon
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 12:23 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 Waxing 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