Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:47 pm (2.8 ft)
Next high tide : in 6h 09m at 1:41 pm (3.7 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 - Sep 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:004.38:135.72:30-0.12:122.16:357:30Waning Crescent1Fri
2Sat9:344.58:585.73:11-0.12:581.86:367:28Waning Crescent2Sat
3Sun10:054.79:395.53:470.03:391.66:377:27New Moon3Sun
4Mon10:344.810:175.44:190.24:181.46:387:25New Moon4Mon
5Tue11:014.810:555.14:480.54:551.36:387:24New Moon5Tue
6Wed11:284.911:334.85:160.85:341.36:397:23New Moon6Wed
7Thu11:564.95:431.26:131.26:407:21Waxing Crescent7Thu
8Fri12:134.512:254.96:101.56:551.36:407:20Waxing Crescent8Fri
9Sat12:574.112:564.86:371.97:431.36:417:18Waxing Crescent9Sat
10Sun1:493.71:314.87:052.38:401.46:427:17Waxing Crescent10Sun
11Mon2:583.42:164.77:382.69:541.46:437:15First Quarter11Mon
12Tue4:363.33:164.68:262.911:111.36:437:14First Quarter12Tue
13Wed6:113.44:304.69:583.16:447:13First Quarter13Wed
14Thu7:123.65:394.812:141.011:31 AM3.06:457:11First Quarter14Thu
15Fri7:513.96:395.11:050.712:382.76:467:10Waxing Gibbous15Fri
16Sat8:214.27:335.31:480.41:312.36:467:08Waxing Gibbous16Sat
17Sun8:504.58:235.62:270.22:191.86:477:07Waxing Gibbous17Sun
18Mon9:204.99:105.73:030.13:061.36:487:05Waxing Gibbous18Mon
19Tue9:525.39:585.73:390.13:520.86:497:04Full Moon19Tue
20Wed10:265.710:495.54:160.34:410.46:497:02Full Moon20Wed
21Thu11:045.911:425.14:540.65:320.16:507:01Full Moon21Thu
22Fri11:456.15:341.06:270.06:517:00Waning Gibbous22Fri
23Sat12:414.712:296.06:171.57:260.06:526:58Waning Gibbous23Sat
24Sun1:474.31:195.97:042.08:310.16:526:57Waning Gibbous24Sun
25Mon3:054.02:185.68:012.49:460.36:536:55Third Quarter25Mon
26Tue4:353.93:295.39:182.711:030.36:546:54Third Quarter26Tue
27Wed5:574.04:495.110:532.86:556:52Third Quarter27Wed
28Thu7:014.36:045.012:120.312:152.56:556:51Third Quarter28Thu
29Fri7:504.57:095.11:100.31:202.26:566:49Waning Crescent29Fri
30Sat8:274.88:045.11:570.42:121.86:576:48Waning Crescent30Sat
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 3:44 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 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