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 6h 45m 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 - Jan 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:265.87:533.51:380.07:115:01Waning Crescent1Tue
2Wed7:055.98:483.612:372.02:22-0.47:115:02Waning Crescent2Wed
3Thu7:416.09:353.71:212.33:02-0.67:115:03Waning Crescent3Thu
4Fri8:156.010:173.72:002.43:38-0.77:115:04New Moon4Fri
5Sat8:485.910:563.72:372.54:14-0.87:115:05New Moon5Sat
6Sun9:215.811:323.73:132.64:48-0.77:115:05New Moon6Sun
7Mon9:545.63:502.65:22-0.67:115:06New Moon7Mon
8Tue12:083.710:28 AM5.34:292.75:55-0.47:115:07Waxing Crescent8Tue
9Wed12:453.711:04 AM5.05:122.76:28-0.17:115:08Waxing Crescent9Wed
10Thu1:243.811:42 AM4.66:012.77:020.27:115:09Waxing Crescent10Thu
11Fri2:053.912:254.17:002.77:380.67:115:10Waxing Crescent11Fri
12Sat2:484.01:213.68:202.68:171.07:115:11First Quarter12Sat
13Sun3:304.22:473.19:542.39:011.37:115:12First Quarter13Sun
14Mon4:114.54:302.911:121.89:511.77:115:13First Quarter14Mon
15Tue4:504.96:062.912:111.17:105:14First Quarter15Tue
16Wed5:315.37:213.21:000.47:105:15Waxing Gibbous16Wed
17Thu6:145.78:163.41:44-0.37:105:16Waxing Gibbous17Thu
18Fri6:586.19:023.612:322.32:27-0.97:095:17Waxing Gibbous18Fri
19Sat7:446.49:463.91:252.33:09-1.47:095:18Full Moon19Sat
20Sun8:306.710:294.02:162.23:53-1.77:095:19Full Moon20Sun
21Mon9:176.711:134.23:082.14:37-1.77:085:20Full Moon21Mon
22Tue10:066.511:574.34:021.95:21-1.67:085:21Waning Gibbous22Tue
23Wed10:576.05:001.96:05-1.27:075:22Waning Gibbous23Wed
24Thu12:434.511:52 AM5.46:021.86:49-0.77:075:23Waning Gibbous24Thu
25Fri1:314.612:524.77:111.77:340.07:065:24Waning Gibbous25Fri
26Sat2:224.82:053.98:321.68:230.77:065:25Third Quarter26Sat
27Sun3:175.03:383.310:021.39:191.37:055:26Third Quarter27Sun
28Mon4:125.15:213.111:230.810:211.87:045:27Third Quarter28Mon
29Tue5:065.26:563.212:310.37:045:28Waning Crescent29Tue
30Wed5:575.48:033.41:25-0.17:035:29Waning Crescent30Wed
31Thu6:435.58:493.512:242.42:09-0.47:025:30Waning Crescent31Thu
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