Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 49m at 9:30 am (1.3 ft)
Next high tide : 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:093.76:485.21:250.812:342.86:357:30Waxing Gibbous1Tue
2Wed8:443.97:375.52:090.41:292.56:367:28Waxing Gibbous2Wed
3Thu9:154.28:235.82:470.02:162.26:377:27Waxing Gibbous3Thu
4Fri9:454.49:086.03:23-0.23:011.96:377:26Waxing Gibbous4Fri
5Sat10:174.79:536.03:59-0.33:461.56:387:24Full Moon5Sat
6Sun10:515.010:405.94:36-0.34:341.26:397:23Full Moon6Sun
7Mon11:275.311:305.65:14-0.15:250.96:407:21Full Moon7Mon
8Tue12:075.55:530.36:200.76:407:20Waning Gibbous8Tue
9Wed12:255.212:495.66:340.87:180.76:417:19Waning Gibbous9Wed
10Thu1:264.61:365.67:171.38:250.66:427:17Waning Gibbous10Thu
11Fri2:384.12:305.58:061.99:420.66:427:16Third Quarter11Fri
12Sat4:103.83:365.49:102.411:040.56:437:14Third Quarter12Sat
13Sun5:453.84:495.310:342.66:447:13Third Quarter13Sun
14Mon7:044.06:005.412:170.311:57 AM2.66:457:11Third Quarter14Mon
15Tue8:024.37:045.41:190.11:072.46:457:10Waning Crescent15Tue
16Wed8:454.57:595.52:100.02:032.26:467:08Waning Crescent16Wed
17Thu9:194.78:455.52:530.02:491.96:477:07Waning Crescent17Thu
18Fri9:504.89:265.43:300.23:291.66:487:06New Moon18Fri
19Sat10:174.810:045.34:020.44:061.46:487:04New Moon19Sat
20Sun10:434.910:415.14:310.64:411.36:497:03New Moon20Sun
21Mon11:094.911:194.84:590.95:171.26:507:01New Moon21Mon
22Tue11:355.011:594.55:261.35:551.16:517:00Waxing Crescent22Tue
23Wed12:034.95:521.66:351.16:516:58Waxing Crescent23Wed
24Thu12:424.212:314.96:192.07:191.26:526:57Waxing Crescent24Thu
25Fri1:323.91:044.86:482.38:101.26:536:55Waxing Crescent25Fri
26Sat2:363.61:434.77:202.79:151.36:546:54Waxing Crescent26Sat
27Sun4:073.42:354.58:053.010:311.26:546:53First Quarter27Sun
28Mon5:433.53:494.59:313.211:401.06:556:51First Quarter28Mon
29Tue6:503.75:064.611:133.16:566:50First Quarter29Tue
30Wed7:324.06:134.812:360.712:242.96:576:48Waxing Gibbous30Wed
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 1:02 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 50% 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 (50% 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