Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 58m at 5:47 pm (2.8 ft)
Next high tide : 11:45 pm (5.3 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 - Apr 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:154.46:02-0.55:530.96:487:25Waxing Crescent1Mon
2Tue12:035.71:164.06:57-0.66:371.46:467:25Waxing Crescent2Tue
3Wed12:495.62:253.77:56-0.57:281.86:457:26Waxing Crescent3Wed
4Thu1:425.33:493.59:03-0.48:332.26:437:27First Quarter4Thu
5Fri2:455.05:153.610:19-0.210:042.46:427:28First Quarter5Fri
6Sat4:034.76:283.811:32-0.211:382.26:417:29First Quarter6Sat
7Sun5:244.57:234.112:35-0.26:397:29First Quarter7Sun
8Mon6:374.58:074.412:531.91:30-0.16:387:30Waxing Gibbous8Mon
9Tue7:404.58:424.61:531.42:150.06:377:31Waxing Gibbous9Tue
10Wed8:334.59:124.82:411.02:530.26:357:32Waxing Gibbous10Wed
11Thu9:184.49:404.93:220.73:250.56:347:33Waxing Gibbous11Thu
12Fri10:004.310:065.04:000.43:550.86:337:33Full Moon12Fri
13Sat10:394.110:315.04:350.24:221.16:317:34Full Moon13Sat
14Sun11:194.010:575.05:110.14:491.46:307:35Full Moon14Sun
15Mon12:013.85:470.05:161.76:297:36Full Moon15Mon
16Tue12:453.66:240.05:452.06:287:37Waning Gibbous16Tue
17Wed1:343.47:050.16:162.26:267:37Waning Gibbous17Wed
18Thu12:264.72:333.27:490.26:512.56:257:38Waning Gibbous18Thu
19Fri1:034.53:493.18:410.47:382.76:247:39Waning Gibbous19Fri
20Sat1:494.25:073.29:430.58:582.86:237:40Third Quarter20Sat
21Sun2:534.06:053.410:470.510:472.76:217:41Third Quarter21Sun
22Mon4:173.96:463.711:440.46:207:42Third Quarter22Mon
23Tue5:353.97:194.112:062.412:330.36:197:42Third Quarter23Tue
24Wed6:444.07:514.51:051.81:170.36:187:43Waning Crescent24Wed
25Thu7:454.28:225.01:551.21:580.46:177:44Waning Crescent25Thu
26Fri8:404.48:555.42:410.52:380.56:167:45Waning Crescent26Fri
27Sat9:334.49:315.83:27-0.13:170.66:147:46New Moon27Sat
28Sun10:264.410:096.14:14-0.63:580.96:137:47New Moon28Sun
29Mon11:214.310:506.25:02-1.04:401.26:127:47New Moon29Mon
30Tue12:194.25:53-1.25:271.56:117:48Waxing Crescent30Tue
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 8:46 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