Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 6:46 am (-0.6 ft)
Next high tide : in 26m at 11:09 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:025.08:353.91:042.02:06-0.39:399:05Waxing Gibbous1Sun
2Mon7:445.09:034.01:471.82:40-0.39:379:06Waxing Gibbous2Mon
3Tue8:215.09:284.12:241.63:09-0.29:369:06Full Moon3Tue
4Wed8:555.09:524.22:581.43:360.09:359:07Full Moon4Wed
5Thu9:284.810:174.33:311.24:010.29:339:08Full Moon5Thu
6Fri10:034.610:424.44:061.14:270.49:329:09Full Moon6Fri
7Sat10:394.411:094.54:431.04:520.79:319:10Full Moon7Sat
8Sun12:174.06:221.06:181.010:2910:11Waning Gibbous8Sun
9Mon12:374.51:013.77:051.06:441.310:2810:12Waning Gibbous9Mon
10Tue1:084.51:533.37:541.07:131.710:2710:13Waning Gibbous10Tue
11Wed1:454.53:062.98:571.07:482.110:2510:13Waning Gibbous11Wed
12Thu2:334.44:492.810:150.88:432.410:2410:14Third Quarter12Thu
13Fri3:384.46:233.011:310.510:222.510:2310:15Third Quarter13Fri
14Sat4:544.67:253.312:350.210:2110:16Third Quarter14Sat
15Sun6:044.88:073.61:28-0.210:2010:17Waning Crescent15Sun
16Mon7:085.18:434.01:032.02:14-0.510:1810:18Waning Crescent16Mon
17Tue8:055.49:174.52:021.52:56-0.710:1710:18Waning Crescent17Tue
18Wed8:585.59:524.92:541.03:36-0.710:1610:19Waning Crescent18Wed
19Thu9:495.510:295.23:440.54:16-0.610:1410:20New Moon19Thu
20Fri10:405.311:075.44:340.14:55-0.310:1310:21New Moon20Fri
21Sat11:325.011:475.65:26-0.25:360.110:1110:22New Moon21Sat
22Sun12:284.66:19-0.36:170.710:1010:22Waxing Crescent22Sun
23Mon12:305.51:284.17:14-0.37:011.210:0910:23Waxing Crescent23Mon
24Tue1:155.32:383.68:15-0.17:491.710:0710:24Waxing Crescent24Tue
25Wed2:065.04:053.49:250.18:522.210:0610:25First Quarter25Wed
26Thu3:084.75:373.410:430.210:212.410:0410:26First Quarter26Thu
27Fri4:234.46:543.511:560.211:512.410:0310:26First Quarter27Fri
28Sat5:384.37:483.812:580.210:0110:27First Quarter28Sat
29Sun6:454.38:264.01:022.21:470.210:0010:28Waxing Gibbous29Sun
30Mon7:414.48:554.11:551.82:270.29:5910:29Waxing Gibbous30Mon
31Tue8:264.49:214.32:361.53:000.39:5710:30Waxing Gibbous31Tue
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 2:57 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 97% 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 Full Moon (97% 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