Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 04m at 5:01 pm (2.8 ft)
Next high tide : 11:09 pm (5.5 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 - Apr 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:544.48:413.91:102.42:02-0.16:487:24Waning Crescent1Tue
2Wed7:474.69:004.21:571.92:34-0.26:477:25Waning Crescent2Wed
3Thu8:364.79:224.72:411.33:040.06:457:26Waning Crescent3Thu
4Fri9:244.79:475.13:230.73:340.26:447:27New Moon4Fri
5Sat10:134.610:165.54:080.14:050.66:437:28New Moon5Sat
6Sun11:064.310:495.84:55-0.44:381.06:417:28New Moon6Sun
7Mon12:034.05:45-0.85:131.56:407:29Waxing Crescent7Mon
8Tue1:073.66:39-1.05:511.96:387:30Waxing Crescent8Tue
9Wed12:086.02:223.37:37-0.96:342.36:377:31Waxing Crescent9Wed
10Thu12:575.73:563.28:44-0.87:312.76:367:32Waxing Crescent10Thu
11Fri1:565.45:293.49:59-0.69:022.96:347:32First Quarter11Fri
12Sat3:135.06:363.611:13-0.511:002.86:337:33First Quarter12Sat
13Sun4:414.77:223.912:17-0.56:327:34First Quarter13Sun
14Mon6:024.57:584.212:282.31:11-0.36:317:35Waxing Gibbous14Mon
15Tue7:124.48:294.51:331.81:55-0.16:297:36Waxing Gibbous15Tue
16Wed8:114.38:564.82:251.22:310.26:287:36Waxing Gibbous16Wed
17Thu9:024.29:205.03:080.73:020.66:277:37Waxing Gibbous17Thu
18Fri9:474.19:435.23:480.33:291.06:257:38Full Moon18Fri
19Sat10:313.910:065.34:250.03:541.46:247:39Full Moon19Sat
20Sun11:153.710:295.35:01-0.24:171.86:237:40Full Moon20Sun
21Mon12:013.55:37-0.34:402.16:227:40Full Moon21Mon
22Tue12:513.36:15-0.35:042.46:217:41Waning Gibbous22Tue
23Wed1:463.16:56-0.25:282.66:197:42Waning Gibbous23Wed
24Thu2:583.07:42-0.15:542.86:187:43Waning Gibbous24Thu
25Fri12:274.88:350.16:177:44Waning Gibbous25Fri
26Sat1:114.59:370.26:167:45Third Quarter26Sat
27Sun2:114.26:343.410:390.210:073.16:157:45Third Quarter27Sun
28Mon3:344.06:563.611:330.211:452.86:147:46Third Quarter28Mon
29Tue5:013.97:174.012:170.26:137:47Third Quarter29Tue
30Wed6:143.97:394.412:492.212:570.36:117:48Waning Crescent30Wed
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 8:05 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