Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 12m at 2:25 pm (2.9 ft)
Next high tide : 8:50 pm (5.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:274.16:574.71:260.61:212.96:586:46Waxing Gibbous1Sat
2Sun8:434.37:454.92:020.52:002.56:596:44Waxing Gibbous2Sun
3Mon9:014.58:275.02:320.52:362.07:006:43Waxing Gibbous3Mon
4Tue9:194.89:085.02:580.63:111.57:006:41Waxing Gibbous4Tue
5Wed9:385.19:494.93:240.83:471.17:016:40Full Moon5Wed
6Thu10:005.410:324.73:491.04:260.77:026:39Full Moon6Thu
7Fri10:255.711:214.44:151.45:080.37:036:37Full Moon7Fri
8Sat10:536.04:421.85:550.07:046:36Waning Gibbous8Sat
9Sun12:164.111:26 AM6.15:112.36:46-0.17:046:35Waning Gibbous9Sun
10Mon1:213.812:056.05:432.77:44-0.17:056:33Waning Gibbous10Mon
11Tue2:433.612:525.96:213.18:53-0.17:066:32Waning Gibbous11Tue
12Wed4:333.61:545.67:153.410:11-0.17:076:31Third Quarter12Wed
13Thu6:013.83:165.39:033.511:24-0.17:086:29Third Quarter13Thu
14Fri6:514.14:485.211:083.37:096:28Third Quarter14Fri
15Sat7:274.46:075.112:24-0.112:302.77:096:27Waning Crescent15Sat
16Sun7:584.87:165.11:14-0.11:332.07:106:25Waning Crescent16Sun
17Mon8:285.28:165.01:570.12:251.47:116:24Waning Crescent17Mon
18Tue8:565.59:094.92:340.53:120.87:126:23Waning Crescent18Tue
19Wed9:235.810:004.73:070.93:550.37:136:22New Moon19Wed
20Thu9:506.010:494.43:371.44:380.07:146:21New Moon20Thu
21Fri10:176.111:414.24:061.95:20-0.27:156:19New Moon21Fri
22Sat10:456.04:342.36:02-0.27:166:18New Moon22Sat
23Sun12:363.911:14 AM5.85:012.76:46-0.17:166:17Waxing Crescent23Sun
24Mon1:373.711:45 AM5.55:283.17:330.17:176:16Waxing Crescent24Mon
25Tue2:533.612:215.25:563.38:270.47:186:15Waxing Crescent25Tue
26Wed1:044.99:310.67:196:14Waxing Crescent26Wed
27Thu2:054.510:380.77:206:13First Quarter27Thu
28Fri6:433.93:354.210:383.611:350.77:216:12First Quarter28Fri
29Sat7:074.15:034.112:043.27:226:10First Quarter29Sat
30Sun7:264.36:124.212:200.712:582.77:236:09First Quarter30Sun
31Mon7:454.67:114.212:570.81:402.27:246:08Waxing Gibbous31Mon
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 5:37 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 96% 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 (96% 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