Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 12:49 am (1.2 ft)
Next high tide : in 1h 27m at 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 - Mar 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:586.110:124.72:541.23:51-1.36:315:58Full Moon1Sun
2Mon9:485.910:504.93:450.84:31-1.06:305:59Full Moon2Mon
3Tue10:405.511:305.14:390.65:11-0.56:286:00Waning Gibbous3Tue
4Wed11:344.95:350.45:510.16:276:01Waning Gibbous4Wed
5Thu12:125.112:344.26:340.46:310.86:266:02Waning Gibbous5Thu
6Fri12:575.11:453.67:410.47:161.46:246:03Waning Gibbous6Fri
7Sat1:494.93:193.29:000.58:132.06:236:04Third Quarter7Sat
8Sun3:504.86:073.111:230.310:362.47:227:05Third Quarter8Sun
9Mon5:004.77:383.312:370.17:207:05Third Quarter9Mon
10Tue6:084.78:333.612:052.51:37-0.17:197:06Third Quarter10Tue
11Wed7:094.79:093.81:172.42:25-0.27:187:07Waning Crescent11Wed
12Thu8:004.89:373.92:092.23:03-0.37:167:08Waning Crescent12Thu
13Fri8:424.910:024.02:491.93:36-0.37:157:09Waning Crescent13Fri
14Sat9:194.910:254.13:231.74:05-0.27:137:10Waning Crescent14Sat
15Sun9:534.910:474.23:551.54:32-0.17:127:10New Moon15Sun
16Mon10:264.811:114.34:271.24:570.17:117:11New Moon16Mon
17Tue11:014.611:354.45:011.15:230.47:097:12New Moon17Tue
18Wed11:384.35:380.95:480.77:087:13New Moon18Wed
19Thu12:004.512:184.06:170.86:141.17:067:14Waxing Crescent19Thu
20Fri12:284.61:043.67:000.86:401.57:057:15Waxing Crescent20Fri
21Sat12:584.62:013.27:500.77:091.97:047:15Waxing Crescent21Sat
22Sun1:344.63:252.98:520.77:432.37:027:16Waxing Crescent22Sun
23Mon2:214.65:182.910:110.68:422.67:017:17First Quarter23Mon
24Tue3:264.56:493.111:300.310:312.76:597:18First Quarter24Tue
25Wed4:454.67:423.412:35-0.16:587:19First Quarter25Wed
26Thu6:004.98:193.812:032.61:30-0.56:577:19Waxing Gibbous26Thu
27Fri7:075.18:524.21:122.12:17-0.76:557:20Waxing Gibbous27Fri
28Sat8:065.49:254.52:091.62:59-0.86:547:21Waxing Gibbous28Sat
29Sun9:005.59:584.93:011.03:39-0.86:527:22Waxing Gibbous29Sun
30Mon9:525.510:335.23:500.54:18-0.56:517:23Full Moon30Mon
31Tue10:435.211:095.44:400.04:56-0.16:507:23Full Moon31Tue
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 9:19 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