Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 11:42 pm (1.5 ft)
Next high tide : in 12m at 4:35 pm (5.0 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:364.81:422.97:440.86:221.99:389:05Waning Gibbous1Tue
2Wed1:174.93:482.69:090.66:452.49:379:06Third Quarter2Wed
3Thu2:145.010:360.29:359:07Third Quarter3Thu
4Fri3:305.17:303.111:49-0.310:133.09:349:08Third Quarter4Fri
5Sat4:495.37:563.412:47-0.89:339:09Waning Crescent5Sat
6Sun6:005.68:233.71:36-1.29:319:09Waning Crescent6Sun
7Mon7:025.88:514.012:562.22:18-1.49:309:10Waning Crescent7Mon
8Tue7:566.09:214.41:521.72:57-1.39:299:11Waning Crescent8Tue
9Wed8:465.99:524.72:431.23:33-1.19:279:12New Moon9Wed
10Thu9:345.610:244.93:320.84:08-0.79:269:13New Moon10Thu
11Fri10:235.110:565.14:220.54:41-0.19:259:14New Moon11Fri
12Sat11:144.511:295.25:130.35:130.69:239:15Waxing Crescent12Sat
13Sun12:103.96:050.25:431.29:229:15Waxing Crescent13Sun
14Mon12:035.11:163.37:010.36:111.99:219:16Waxing Crescent14Mon
15Tue12:394.92:522.98:080.46:382.49:199:17Waxing Crescent15Tue
16Wed1:224.79:310.59:189:18First Quarter16Wed
17Thu2:224.47:243.210:530.49:303.19:169:19First Quarter17Thu
18Fri3:444.37:443.412:010.29:159:20First Quarter18Fri
19Sat5:024.38:033.512:520.09:149:20First Quarter19Sat
20Sun6:054.58:203.712:272.71:31-0.19:129:21Waxing Gibbous20Sun
21Mon6:544.68:383.81:092.32:02-0.29:119:22Waxing Gibbous21Mon
22Tue7:354.88:554.01:442.02:29-0.29:099:23Waxing Gibbous22Tue
23Wed8:124.89:144.22:181.62:53-0.19:089:24Waxing Gibbous23Wed
24Thu8:484.89:334.42:521.23:170.19:079:24Full Moon24Thu
25Fri9:264.69:554.73:280.93:400.49:059:25Full Moon25Fri
26Sat10:064.310:184.94:070.64:040.79:049:26Full Moon26Sat
27Sun10:524.010:445.14:490.34:281.29:029:27Full Moon27Sun
28Mon11:453.611:145.25:360.14:531.69:019:28Waning Gibbous28Mon
29Tue12:493.26:280.05:192.18:599:28Waning Gibbous29Tue
30Wed2:212.97:30-0.15:462.58:589:29Waning Gibbous30Wed
31Thu12:365.28:48-0.28:579:30Third Quarter31Thu
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 8:08 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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