Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 7:17 am (-0.4 ft)
Next high tide (tomorrow) : in 2h 04m at 11:45 pm (5.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:013.34:524.610:142.96:367:29First Quarter1Sun
2Mon7:193.55:544.712:281.211:37 AM2.96:377:27First Quarter2Mon
3Tue8:063.76:494.91:210.912:422.86:377:26Waxing Gibbous3Tue
4Wed8:393.97:365.12:030.61:322.66:387:24Waxing Gibbous4Wed
5Thu9:064.18:195.42:390.42:152.36:397:23Waxing Gibbous5Thu
6Fri9:324.48:585.53:110.22:541.96:407:22Waxing Gibbous6Fri
7Sat9:594.69:385.63:430.23:341.66:407:20Full Moon7Sat
8Sun10:284.910:195.54:140.24:151.36:417:19Full Moon8Sun
9Mon10:595.111:035.34:470.34:591.06:427:17Full Moon9Mon
10Tue11:325.311:525.05:210.65:470.86:437:16Waning Gibbous10Tue
11Wed12:105.55:571.06:390.76:437:14Waning Gibbous11Wed
12Thu12:464.612:515.66:351.47:370.66:447:13Waning Gibbous12Thu
13Fri1:494.21:395.67:181.88:440.66:457:12Waning Gibbous13Fri
14Sat3:083.82:365.58:112.310:030.66:457:10Third Quarter14Sat
15Sun4:423.73:475.49:242.611:220.46:467:09Third Quarter15Sun
16Mon6:083.95:045.410:552.76:477:07Third Quarter16Mon
17Tue7:144.16:165.412:300.212:162.56:487:06Waning Crescent17Tue
18Wed8:034.57:205.51:270.01:222.16:487:04Waning Crescent18Wed
19Thu8:434.78:155.62:160.02:171.76:497:03Waning Crescent19Thu
20Fri9:185.09:045.62:580.03:041.46:507:01Waning Crescent20Fri
21Sat9:505.29:485.43:350.23:481.16:517:00New Moon21Sat
22Sun10:215.310:315.24:090.54:290.96:516:58New Moon22Sun
23Mon10:515.311:134.94:410.95:090.86:526:57New Moon23Mon
24Tue11:215.311:574.65:121.25:500.76:536:56New Moon24Tue
25Wed11:515.25:421.66:320.86:546:54Waxing Crescent25Wed
26Thu12:434.312:235.16:122.07:160.96:546:53Waxing Crescent26Thu
27Fri1:353.912:574.96:442.48:061.06:556:51Waxing Crescent27Fri
28Sat2:383.71:364.77:192.79:071.26:566:50Waxing Crescent28Sat
29Sun4:043.52:294.58:073.010:201.26:576:48First Quarter29Sun
30Mon5:353.63:424.49:363.211:281.16:576:47First Quarter30Mon
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 3:31 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 Waning 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