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 52m 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 - Oct 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:403.85:014.411:193.16:586:46First Quarter1Tue
2Wed7:224.06:084.512:241.012:272.86:596:44First Quarter2Wed
3Thu7:534.37:044.71:100.81:182.57:006:43Waxing Gibbous3Thu
4Fri8:204.67:534.91:490.72:002.07:016:41Waxing Gibbous4Fri
5Sat8:464.98:395.12:240.62:411.57:016:40Waxing Gibbous5Sat
6Sun9:135.29:245.12:580.63:211.07:026:39Full Moon6Sun
7Mon9:435.610:105.13:310.74:030.57:036:37Full Moon7Mon
8Tue10:155.910:595.04:060.94:480.27:046:36Full Moon8Tue
9Wed10:516.111:524.74:431.25:36-0.17:056:35Full Moon9Wed
10Thu11:316.15:231.66:29-0.27:056:33Waning Gibbous10Thu
11Fri12:514.512:166.16:072.07:25-0.27:066:32Waning Gibbous11Fri
12Sat1:584.21:075.86:572.48:28-0.17:076:31Waning Gibbous12Sat
13Sun3:164.12:075.58:002.79:390.17:086:29Third Quarter13Sun
14Mon4:404.13:225.29:272.910:520.27:096:28Third Quarter14Mon
15Tue5:524.34:455.011:042.711:580.27:096:27Third Quarter15Tue
16Wed6:484.66:034.912:232.37:106:25Third Quarter16Wed
17Thu7:344.97:114.912:540.31:261.87:116:24Waning Crescent17Thu
18Fri8:125.28:104.81:430.52:181.37:126:23Waning Crescent18Fri
19Sat8:455.48:594.82:240.73:020.97:136:22Waning Crescent19Sat
20Sun9:155.59:444.73:001.03:420.67:146:20New Moon20Sun
21Mon9:435.610:264.63:321.34:190.47:156:19New Moon21Mon
22Tue10:105.611:094.44:021.64:560.37:166:18New Moon22Tue
23Wed10:375.611:524.24:302.05:330.27:166:17New Moon23Wed
24Thu11:055.54:592.36:110.37:176:16Waxing Crescent24Thu
25Fri12:384.011:34 AM5.35:292.56:510.47:186:15Waxing Crescent25Fri
26Sat1:283.912:075.16:022.87:340.57:196:14Waxing Crescent26Sat
27Sun2:273.712:434.96:413.08:230.77:206:13Waxing Crescent27Sun
28Mon3:403.71:284.67:333.29:210.87:216:11First Quarter28Mon
29Tue4:543.82:314.38:573.310:230.97:226:10First Quarter29Tue
30Wed5:494.03:564.110:483.211:200.97:236:09First Quarter30Wed
31Thu6:284.25:184.112:032.87:246:08First Quarter31Thu
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 3:31 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