Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 38m at 5:18 am (-1.9 ft)
Next high tide : 12:08 pm (3.7 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:48 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:546.13:422.85:30-1.17:115:02Waxing Crescent1Wed
2Thu12:243.810:36 AM5.84:362.76:12-1.07:115:03Waxing Crescent2Thu
3Fri1:003.911:24 AM5.45:302.76:48-0.67:115:03Waxing Crescent3Fri
4Sat1:424.212:184.86:422.57:24-0.17:115:04Waxing Crescent4Sat
5Sun2:244.51:244.08:062.38:060.57:115:05First Quarter5Sun
6Mon3:064.93:003.49:421.88:541.17:115:06First Quarter6Mon
7Tue3:545.34:483.011:061.09:421.77:115:07First Quarter7Tue
8Wed4:425.66:363.012:180.27:115:08Waxing Gibbous8Wed
9Thu5:306.08:003.21:12-0.57:115:09Waxing Gibbous9Thu
10Fri6:186.28:543.52:06-1.07:115:09Waxing Gibbous10Fri
11Sat7:126.49:423.712:482.72:48-1.47:115:10Waxing Gibbous11Sat
12Sun8:006.510:243.81:422.63:36-1.57:115:11Full Moon12Sun
13Mon8:426.411:003.92:362.64:12-1.47:115:12Full Moon13Mon
14Tue9:246.211:363.93:242.54:54-1.37:105:13Full Moon14Tue
15Wed10:065.84:122.45:30-0.97:105:14Waning Gibbous15Wed
16Thu12:124.010:48 AM5.45:002.36:00-0.57:105:15Waning Gibbous16Thu
17Fri12:484.111:30 AM4.85:482.36:300.07:105:16Waning Gibbous17Fri
18Sat1:184.112:124.26:422.27:000.57:095:17Waning Gibbous18Sat
19Sun1:544.21:063.57:482.27:241.17:095:18Third Quarter19Sun
20Mon2:304.32:182.99:122.07:541.67:085:19Third Quarter20Mon
21Tue3:124.54:122.610:421.68:182.17:085:20Third Quarter21Tue
22Wed3:544.66:482.611:541.19:002.67:075:21Third Quarter22Wed
23Thu4:424.88:182.912:480.57:075:22Third Quarter23Thu
24Fri5:305.08:483.11:300.07:065:23Waning Crescent24Fri
25Sat6:185.39:123.32:12-0.47:065:24Waning Crescent25Sat
26Sun7:005.69:363.412:362.92:42-0.87:055:25Waning Crescent26Sun
27Mon7:425.910:063.61:242.73:18-1.17:055:26New Moon27Mon
28Tue8:246.110:303.72:122.53:54-1.37:045:27New Moon28Tue
29Wed9:066.111:003.92:542.34:30-1.37:035:28New Moon29Wed
30Thu9:486.011:304.13:422.05:00-1.27:035:29New Moon30Thu
31Fri10:365.64:361.85:36-0.87:025:30Waxing Crescent31Fri
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 8:43 am — 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 1% 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 New Moon (1% 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