Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 30m at 10:52 am (1.1 ft)
Next high tide : 5:49 pm (5.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:563.57:045.51:340.512:352.36:128:05Waxing Gibbous1Fri
2Sat8:573.67:495.62:260.21:312.56:138:04Waxing Gibbous2Sat
3Sun9:423.88:295.73:080.02:182.56:148:03Waxing Gibbous3Sun
4Mon10:173.99:065.73:45-0.22:582.56:158:03Waxing Gibbous4Mon
5Tue10:493.99:405.74:19-0.23:332.46:158:02Full Moon5Tue
6Wed11:184.010:135.64:50-0.24:082.46:168:01Full Moon6Wed
7Thu11:474.110:465.55:21-0.14:442.36:178:00Full Moon7Thu
8Fri12:174.15:510.05:222.26:187:58Full Moon8Fri
9Sat12:474.26:200.26:032.26:197:57Waning Gibbous9Sat
10Sun1:184.36:490.56:482.26:197:56Waning Gibbous10Sun
11Mon12:364.61:524.47:180.87:392.16:207:55Waning Gibbous11Mon
12Tue1:214.22:294.57:491.28:432.16:217:54Waning Gibbous12Tue
13Wed2:203.73:124.78:251.610:031.86:227:53Third Quarter13Wed
14Thu3:443.34:044.99:102.011:251.46:227:52Third Quarter14Thu
15Fri5:273.25:005.110:112.36:237:51Third Quarter15Fri
16Sat6:593.35:585.512:340.911:22 AM2.56:247:49Third Quarter16Sat
17Sun8:063.66:545.91:310.312:302.56:257:48Waning Crescent17Sun
18Mon8:543.97:496.22:21-0.21:332.36:257:47Waning Crescent18Mon
19Tue9:354.28:416.53:07-0.72:292.16:267:46Waning Crescent19Tue
20Wed10:154.59:316.63:50-0.93:221.86:277:45New Moon20Wed
21Thu10:554.710:216.54:33-1.04:151.56:287:43New Moon21Thu
22Fri11:355.011:126.25:15-0.85:091.36:287:42New Moon22Fri
23Sat12:175.15:57-0.56:051.16:297:41Waxing Crescent23Sat
24Sun12:055.71:005.26:380.07:031.16:307:39Waxing Crescent24Sun
25Mon1:015.11:455.37:200.68:051.16:317:38Waxing Crescent25Mon
26Tue2:034.42:345.28:041.39:181.16:317:37First Quarter26Tue
27Wed3:193.93:305.18:541.910:391.16:327:36First Quarter27Wed
28Thu4:553.64:335.19:582.411:570.96:337:34First Quarter28Thu
29Fri6:323.65:365.011:162.76:347:33First Quarter29Fri
30Sat7:493.76:365.11:030.712:282.86:347:31Waxing Gibbous30Sat
31Sun8:393.97:285.21:560.41:282.76:357:30Waxing Gibbous31Sun
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 2:20 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 59% 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 First Quarter (59% 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