Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:00 am (0.0 ft)
Next high tide : in 2h 51m at 7:11 pm (5.4 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Feb 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:315.88:303.31:29-0.97:015:31Waxing Gibbous1Thu
2Fri6:316.29:063.612:022.72:15-1.47:005:32Waxing Gibbous2Fri
3Sat7:276.59:413.81:092.52:59-1.77:005:33Waxing Gibbous3Sat
4Sun8:196.610:164.02:072.23:41-1.86:595:34Full Moon4Sun
5Mon9:086.610:524.33:011.94:22-1.76:585:35Full Moon5Mon
6Tue9:576.211:294.53:551.65:01-1.36:575:36Full Moon6Tue
7Wed10:465.74:501.45:37-0.86:565:37Waning Gibbous7Wed
8Thu12:064.711:37 AM4.95:471.36:12-0.16:555:38Waning Gibbous8Thu
9Fri12:444.812:324.16:481.26:440.66:545:39Waning Gibbous9Fri
10Sat1:234.81:393.47:581.17:161.46:535:40Third Quarter10Sat
11Sun2:074.83:172.89:221.07:482.06:525:41Third Quarter11Sun
12Mon2:584.85:422.710:490.88:322.66:515:42Third Quarter12Mon
13Tue3:564.77:523.012:030.46:505:43Third Quarter13Tue
14Wed4:584.88:303.31:010.16:495:44Waning Crescent14Wed
15Thu5:574.98:543.41:45-0.26:485:45Waning Crescent15Thu
16Fri6:475.09:143.512:442.92:21-0.46:475:46Waning Crescent16Fri
17Sat7:295.29:333.61:282.62:52-0.66:465:47Waning Crescent17Sat
18Sun8:065.39:543.72:032.43:21-0.66:455:48Waning Crescent18Sun
19Mon8:405.410:153.82:372.13:48-0.66:445:49New Moon19Mon
20Tue9:135.310:374.03:121.94:14-0.56:435:50New Moon20Tue
21Wed9:475.111:004.23:491.74:39-0.36:415:51New Moon21Wed
22Thu10:244.811:244.44:291.55:030.06:405:52Waxing Crescent22Thu
23Fri11:054.411:504.65:141.35:270.56:395:53Waxing Crescent23Fri
24Sat11:523.86:021.15:501.06:385:53Waxing Crescent24Sat
25Sun12:194.812:513.37:001.06:141.56:365:54Waxing Crescent25Sun
26Mon12:544.92:212.78:130.86:382.16:355:55First Quarter26Mon
27Tue1:415.04:502.69:440.57:062.56:345:56First Quarter27Tue
28Wed2:455.111:080.06:335:57First Quarter28Wed
29Thu4:025.27:433.312:16-0.56:315:58First Quarter29Thu
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 11:05 pm — 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 80% 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 (80% 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