Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 4:31 am (-0.6 ft)
Next high tide : in 2h 35m at 8:50 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:066.09:483.91:462.33:21-0.410:007:57New Moon1Wed
2Thu8:396.110:323.92:232.43:59-0.710:017:57New Moon2Thu
3Fri9:156.211:184.03:022.54:40-0.810:027:57New Moon3Fri
4Sat9:546.13:452.65:22-0.910:027:57Waxing Crescent4Sat
5Sun12:064.010:39 AM5.94:352.66:06-0.810:037:57Waxing Crescent5Sun
6Mon12:554.111:28 AM5.65:342.76:52-0.510:047:57Waxing Crescent6Mon
7Tue1:484.312:255.06:422.77:42-0.210:057:57Waxing Crescent7Tue
8Wed2:424.51:344.58:082.68:350.210:067:57First Quarter8Wed
9Thu3:364.83:024.09:432.29:310.710:067:58First Quarter9Thu
10Fri4:255.24:343.711:041.510:271.110:077:58First Quarter10Fri
11Sat5:125.66:003.612:110.810:087:58Waxing Gibbous11Sat
12Sun5:585.97:153.71:070.110:097:58Waxing Gibbous12Sun
13Mon6:426.28:153.812:131.71:56-0.410:097:58Waxing Gibbous13Mon
14Tue7:246.49:073.91:032.02:41-0.810:107:59Waxing Gibbous14Tue
15Wed8:046.59:554.01:492.13:23-1.010:117:59Full Moon15Wed
16Thu8:436.410:404.12:342.34:04-1.010:117:59Full Moon16Thu
17Fri9:226.211:244.13:182.44:44-0.910:128:00Full Moon17Fri
18Sat10:005.94:022.55:22-0.710:128:00Full Moon18Sat
19Sun12:074.110:39 AM5.54:482.65:59-0.410:138:01Waning Gibbous19Sun
20Mon12:494.111:19 AM5.05:372.66:35-0.110:148:01Waning Gibbous20Mon
21Tue1:334.112:014.56:312.77:110.310:148:02Waning Gibbous21Tue
22Wed2:194.112:504.07:372.77:490.810:148:02Waning Gibbous22Wed
23Thu3:064.31:533.59:032.68:311.210:158:03Third Quarter23Thu
24Fri3:514.43:213.110:292.29:171.610:158:03Third Quarter24Fri
25Sat4:324.64:572.911:371.710:061.910:168:04Third Quarter25Sat
26Sun5:114.96:223.012:301.210:168:05Third Quarter26Sun
27Mon5:495.27:273.21:130.610:168:05Waning Crescent27Mon
28Tue6:265.58:153.41:510.110:178:06Waning Crescent28Tue
29Wed7:035.88:563.612:322.32:27-0.410:178:07Waning Crescent29Wed
30Thu7:416.19:353.71:182.33:04-0.810:178:07New Moon30Thu
31Fri8:216.310:133.92:032.33:42-1.110:178:08New Moon31Fri
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 12:40 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 95% 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 Waxing Gibbous (95% 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