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 : 5:01 pm (2.8 ft)
Next high tide : in 4h 20m at 1:08 pm (3.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:205.65:092.06:200.46:586:46Waxing Crescent1Wed
2Thu12:394.011:47 AM5.55:332.47:040.56:596:45Waxing Crescent2Thu
3Fri1:373.712:165.35:572.87:540.66:596:43Waxing Crescent3Fri
4Sat2:533.412:515.06:183.18:550.87:006:42Waxing Crescent4Sat
5Sun1:364.810:100.97:016:40First Quarter5Sun
6Mon2:474.511:220.97:026:39First Quarter6Mon
7Tue7:293.84:234.410:533.67:036:38First Quarter7Tue
8Wed7:454.05:404.512:190.712:163.27:036:36First Quarter8Wed
9Thu8:024.26:414.61:030.61:072.87:046:35Waxing Gibbous9Thu
10Fri8:194.47:344.81:390.61:502.37:056:34Waxing Gibbous10Fri
11Sat8:384.88:224.82:100.62:291.77:066:32Waxing Gibbous11Sat
12Sun8:585.29:084.82:390.73:091.17:076:31Waxing Gibbous12Sun
13Mon9:225.69:564.83:081.03:490.57:086:30Full Moon13Mon
14Tue9:496.010:464.63:371.34:330.07:086:28Full Moon14Tue
15Wed10:206.311:424.34:091.75:20-0.47:096:27Full Moon15Wed
16Thu10:556.44:422.16:12-0.67:106:26Waning Gibbous16Thu
17Fri12:454.111:35 AM6.45:192.57:08-0.67:116:25Waning Gibbous17Fri
18Sat1:563.812:236.26:022.98:10-0.57:126:23Waning Gibbous18Sat
19Sun3:233.71:205.96:583.29:21-0.37:136:22Waning Gibbous19Sun
20Mon4:543.82:325.58:223.410:34-0.27:146:21Third Quarter20Mon
21Tue6:004.14:005.110:213.311:39-0.17:146:20Third Quarter21Tue
22Wed6:474.45:264.911:552.87:156:19Third Quarter22Wed
23Thu7:254.86:414.812:340.11:042.27:166:17Waning Crescent23Thu
24Fri7:585.17:454.71:210.32:001.57:176:16Waning Crescent24Fri
25Sat8:275.48:414.62:010.72:470.97:186:15Waning Crescent25Sat
26Sun8:545.79:324.42:351.13:290.57:196:14Waning Crescent26Sun
27Mon9:195.810:194.33:041.54:080.27:206:13New Moon27Mon
28Tue9:445.911:064.13:322.04:460.07:216:12New Moon28Tue
29Wed10:095.911:553.93:572.45:23-0.17:226:11New Moon29Wed
30Thu10:345.84:222.76:02-0.17:236:10New Moon30Thu
31Fri12:463.811:02 AM5.74:473.06:430.07:246:09Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 3:04 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 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