Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:03 pm (2.9 ft)
Next high tide : in 1h 58m at 11:29 am (3.4 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:385.25:254.111:551.611:370.79:597:58Third Quarter1Sat
2Sun6:195.56:394.012:540.910:007:57Waning Crescent2Sun
3Mon6:565.87:424.012:241.11:430.310:017:57Waning Crescent3Mon
4Tue7:316.18:374.01:061.42:28-0.110:027:57Waning Crescent4Tue
5Wed8:046.29:284.01:451.83:09-0.510:037:57New Moon5Wed
6Thu8:356.210:174.02:212.13:48-0.610:047:57New Moon6Thu
7Fri9:076.111:043.92:562.44:27-0.610:047:57New Moon7Fri
8Sat9:395.911:523.93:312.65:06-0.610:057:57New Moon8Sat
9Sun10:125.64:082.85:44-0.410:067:58Waxing Crescent9Sun
10Mon12:393.810:47 AM5.34:493.06:23-0.210:077:58Waxing Crescent10Mon
11Tue1:303.811:24 AM5.05:363.17:050.110:087:58Waxing Crescent11Tue
12Wed2:253.812:064.66:323.27:490.310:087:58Waxing Crescent12Wed
13Thu3:203.912:584.17:513.28:370.610:097:58First Quarter13Thu
14Fri4:074.12:103.79:343.09:260.910:107:59First Quarter14Fri
15Sat4:454.33:413.410:562.610:131.110:107:59First Quarter15Sat
16Sun5:194.65:053.311:552.010:571.410:117:59First Quarter16Sun
17Mon5:505.06:193.412:421.410:128:00Waxing Gibbous17Mon
18Tue6:215.37:213.51:230.710:128:00Waxing Gibbous18Tue
19Wed6:535.78:153.712:211.82:020.110:138:00Waxing Gibbous19Wed
20Thu7:276.19:043.81:031.92:42-0.510:138:01Waxing Gibbous20Thu
21Fri8:046.49:533.91:452.13:23-1.010:148:01Full Moon21Fri
22Sat8:446.610:434.02:292.24:07-1.310:148:02Full Moon22Sat
23Sun9:276.611:344.13:162.34:53-1.410:158:02Full Moon23Sun
24Mon10:146.54:072.45:40-1.410:158:03Waning Gibbous24Mon
25Tue12:264.211:05 AM6.15:052.56:28-1.210:168:04Waning Gibbous25Tue
26Wed1:204.312:005.66:102.57:18-0.810:168:04Waning Gibbous26Wed
27Thu2:174.41:034.97:272.58:12-0.310:168:05Third Quarter27Thu
28Fri3:144.72:194.38:582.29:080.310:178:05Third Quarter28Fri
29Sat4:085.03:493.810:271.810:040.810:178:06Third Quarter29Sat
30Sun4:575.35:203.511:431.210:591.310:178:07Third Quarter30Sun
31Mon5:445.56:433.412:460.510:178:08Waning Crescent31Mon
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 1:16 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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