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 : 9:30 am (1.3 ft)
Next high tide : in 21m at 3:26 am (3.3 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 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:365.311:175.24:350.55:00-0.39:389:05Waxing Crescent1Wed
2Thu11:314.611:555.45:310.35:350.49:379:06Waxing Crescent2Thu
3Fri12:333.96:310.26:091.19:369:07Waxing Crescent3Fri
4Sat12:355.41:513.27:380.26:441.89:349:08Waxing Crescent4Sat
5Sun1:215.23:452.99:000.27:252.49:339:08First Quarter5Sun
6Mon2:185.06:043.010:270.18:482.99:329:09First Quarter6Mon
7Tue3:324.87:243.311:45-0.110:493.09:309:10First Quarter7Tue
8Wed4:504.78:003.612:45-0.39:299:11First Quarter8Wed
9Thu5:584.88:273.712:122.81:32-0.49:289:12Waxing Gibbous9Thu
10Fri6:534.98:493.81:062.42:09-0.49:269:13Waxing Gibbous10Fri
11Sat7:365.09:093.91:452.12:39-0.49:259:14Waxing Gibbous11Sat
12Sun8:135.09:274.02:191.83:05-0.39:249:14Waxing Gibbous12Sun
13Mon8:474.99:464.22:521.53:29-0.19:229:15Full Moon13Mon
14Tue9:214.710:064.43:251.23:500.29:219:16Full Moon14Tue
15Wed9:564.510:264.54:001.04:110.59:199:17Full Moon15Wed
16Thu10:334.110:474.74:370.84:310.99:189:18Full Moon16Thu
17Fri11:153.811:094.85:170.74:511.39:179:19Waning Gibbous17Fri
18Sat12:033.36:000.65:091.79:159:19Waning Gibbous18Sat
19Sun1:062.96:510.55:262.19:149:20Waning Gibbous19Sun
20Mon12:074.82:522.67:560.55:352.59:129:21Waning Gibbous20Mon
21Tue12:504.89:190.39:119:22Third Quarter21Tue
22Wed1:564.710:400.09:109:23Third Quarter22Wed
23Thu3:274.77:193.311:44-0.410:452.99:089:23Third Quarter23Thu
24Fri4:515.07:363.612:36-0.79:079:24Waning Crescent24Fri
25Sat6:015.27:584.012:042.41:20-0.99:059:25Waning Crescent25Sat
26Sun7:025.48:244.41:041.81:59-0.99:049:26Waning Crescent26Sun
27Mon7:575.58:534.91:561.12:35-0.89:039:27Waning Crescent27Mon
28Tue8:495.39:235.32:470.53:10-0.49:019:27New Moon28Tue
29Wed9:425.09:565.63:37-0.13:440.19:009:28New Moon29Wed
30Thu10:374.510:305.84:28-0.44:190.78:589:29New Moon30Thu
31Fri11:364.011:075.85:21-0.64:531.48:579:30Waxing Crescent31Fri
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 6:28 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 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