Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 48m at 5:09 pm (2.2 ft)
Next high tide : 11:13 pm (6.5 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:07 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:295.24:473.99:22-0.89:053.08:5611:18Third Quarter1Sun
2Mon2:394.85:324.210:19-0.510:482.68:5611:19Third Quarter2Mon
3Tue4:044.36:124.611:12-0.28:5611:20Third Quarter3Tue
4Wed5:313.96:495.112:112.012:000.38:5511:20Third Quarter4Wed
5Thu6:533.77:255.51:191.212:460.78:5511:21Waning Crescent5Thu
6Fri8:093.68:015.92:160.41:291.28:5511:21Waning Crescent6Fri
7Sat9:153.68:366.23:06-0.32:111.68:5511:22Waning Crescent7Sat
8Sun10:153.69:126.33:52-0.82:512.08:5511:22New Moon8Sun
9Mon11:133.69:486.34:37-1.13:322.38:5511:23New Moon9Mon
10Tue12:083.75:21-1.24:132.68:5511:23New Moon10Tue
11Wed1:013.66:04-1.14:562.88:5511:24New Moon11Wed
12Thu1:533.66:47-1.05:432.98:5511:24Waxing Crescent12Thu
13Fri2:453.67:30-0.76:343.08:5511:25Waxing Crescent13Fri
14Sat12:275.13:393.78:13-0.47:333.18:5511:25Waxing Crescent14Sat
15Sun1:124.74:283.88:570.08:473.18:5511:25Waxing Crescent15Sun
16Mon2:034.25:104.09:410.310:212.98:5511:26First Quarter16Mon
17Tue3:083.85:444.210:250.711:432.58:5511:26First Quarter17Tue
18Wed4:283.46:154.411:051.08:5511:26First Quarter18Wed
19Thu5:513.16:434.812:472.011:43 AM1.48:5511:27First Quarter19Thu
20Fri7:113.17:115.11:391.412:191.78:5511:27Waxing Gibbous20Fri
21Sat8:223.17:405.42:220.812:562.08:5611:27Waxing Gibbous21Sat
22Sun9:203.28:115.73:010.21:352.38:5611:27Waxing Gibbous22Sun
23Mon10:123.48:456.03:39-0.42:152.58:5611:27Waxing Gibbous23Mon
24Tue11:013.59:236.34:19-0.82:572.68:5611:27Full Moon24Tue
25Wed11:503.610:036.45:01-1.13:412.78:5711:28Full Moon25Wed
26Thu12:383.75:45-1.44:302.88:5711:28Full Moon26Thu
27Fri1:253.86:30-1.45:252.88:5711:28Waning Gibbous27Fri
28Sat2:123.97:15-1.36:282.88:5811:28Waning Gibbous28Sat
29Sun12:295.83:004.18:01-1.17:392.78:5811:28Waning Gibbous29Sun
30Mon1:265.33:494.48:48-0.69:032.58:5911:28Waning Gibbous30Mon
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 8:11 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 2% 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 (2% 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