Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 28m at 12:10 am (1.9 ft)
Next high tide : 5:21 am (3.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:48 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:005.89:274.31:591.73:02-1.16:315:58Full Moon1Sun
2Mon8:465.69:564.52:471.33:35-0.86:305:59Full Moon2Mon
3Tue9:295.310:244.73:321.04:06-0.46:296:00Full Moon3Tue
4Wed10:124.910:524.84:160.84:350.16:276:01Full Moon4Wed
5Thu10:564.411:194.95:010.75:010.66:266:02Waning Gibbous5Thu
6Fri11:423.811:474.85:460.65:241.26:256:03Waning Gibbous6Fri
7Sat12:353.36:340.75:451.76:236:03Waning Gibbous7Sat
8Sun12:164.72:442.98:300.77:002.27:227:04Waning Gibbous8Sun
9Mon1:494.64:532.69:430.87:002.67:217:05Third Quarter9Mon
10Tue2:344.411:100.77:197:06Third Quarter10Tue
11Wed3:474.212:260.57:187:07Third Quarter11Wed
12Thu5:134.39:003.31:230.27:177:08Third Quarter12Thu
13Fri6:234.49:083.412:273.02:06-0.17:157:09Waning Crescent13Fri
14Sat7:194.79:233.61:262.62:39-0.37:147:09Waning Crescent14Sat
15Sun8:054.99:393.92:092.23:09-0.47:127:10Waning Crescent15Sun
16Mon8:475.19:594.22:491.83:37-0.47:117:11Waning Crescent16Mon
17Tue9:285.110:204.53:281.34:04-0.37:107:12New Moon17Tue
18Wed10:105.010:454.94:090.94:320.07:087:13New Moon18Wed
19Thu10:554.711:125.24:530.45:000.47:077:13New Moon19Thu
20Fri11:454.311:445.45:400.15:300.97:057:14Waxing Crescent20Fri
21Sat12:423.86:31-0.26:011.47:047:15Waxing Crescent21Sat
22Sun12:195.61:503.47:28-0.36:341.97:037:16Waxing Crescent22Sun
23Mon1:015.63:223.08:35-0.37:112.47:017:17Waxing Crescent23Mon
24Tue1:535.45:233.09:55-0.38:092.87:007:18First Quarter24Tue
25Wed3:015.16:583.211:18-0.410:133.06:587:18First Quarter25Wed
26Thu4:285.07:483.612:29-0.66:577:19First Quarter26Thu
27Fri5:524.98:223.912:022.71:27-0.76:567:20Waxing Gibbous27Fri
28Sat7:045.08:524.21:172.22:13-0.76:547:21Waxing Gibbous28Sat
29Sun8:045.09:194.52:141.62:52-0.56:537:22Waxing Gibbous29Sun
30Mon8:554.99:454.73:021.13:26-0.26:517:22Waxing Gibbous30Mon
31Tue9:414.710:105.03:450.73:560.26:507:23Full 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 2:45 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 neap phase. Tonight's moon is 46% 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 Third Quarter (46% 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