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 (tomorrow) : 5:06 am (-0.6 ft)
Next high tide : in 5h 02m at 9:24 pm (5.7 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 - May 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:583.99:445.13:550.33:321.39:1810:55Full Moon1Mon
2Tue10:383.810:095.24:290.13:581.59:1710:56Full Moon2Tue
3Wed11:183.710:355.25:03-0.14:251.89:1610:57Full Moon3Wed
4Thu12:003.65:38-0.24:542.09:1510:58Full Moon4Thu
5Fri12:453.56:15-0.25:252.29:1410:58Waning Gibbous5Fri
6Sat1:343.46:54-0.26:002.49:1310:59Waning Gibbous6Sat
7Sun12:064.92:313.47:37-0.16:402.69:1211:00Waning Gibbous7Sun
8Mon12:444.73:373.48:240.07:342.89:1111:01Waning Gibbous8Mon
9Tue1:304.44:423.59:190.28:542.99:1011:02Third Quarter9Tue
10Wed2:324.15:343.710:170.210:362.79:0911:02Third Quarter10Wed
11Thu3:543.96:154.111:130.311:562.29:0811:03Third Quarter11Thu
12Fri5:183.96:524.512:040.49:0711:04Third Quarter12Fri
13Sat6:333.97:284.912:581.612:510.49:0711:05Waning Crescent13Sat
14Sun7:424.08:045.41:520.91:370.69:0611:06Waning Crescent14Sun
15Mon8:434.18:415.92:420.12:210.89:0511:06Waning Crescent15Mon
16Tue9:394.29:216.23:30-0.53:041.09:0411:07New Moon16Tue
17Wed10:354.210:026.44:18-1.03:491.39:0411:08New Moon17Wed
18Thu11:324.210:456.45:07-1.34:361.69:0311:09New Moon18Thu
19Fri12:304.15:58-1.55:261.89:0211:09New Moon19Fri
20Sat1:304.16:49-1.46:222.19:0211:10Waxing Crescent20Sat
21Sun12:225.82:324.07:42-1.17:232.39:0111:11Waxing Crescent21Sun
22Mon1:155.33:384.18:37-0.78:372.59:0011:12Waxing Crescent22Mon
23Tue2:164.84:424.29:36-0.310:062.49:0011:12First Quarter23Tue
24Wed3:274.25:394.410:350.111:332.18:5911:13First Quarter24Wed
25Thu4:483.86:274.611:310.58:5911:14First Quarter25Thu
26Fri6:063.67:084.812:441.712:210.88:5811:15First Quarter26Fri
27Sat7:173.57:435.01:411.21:051.18:5811:15Waxing Gibbous27Sat
28Sun8:183.58:135.12:270.81:441.48:5811:16Waxing Gibbous28Sun
29Mon9:083.58:415.33:060.42:181.78:5711:17Waxing Gibbous29Mon
30Tue9:523.59:085.43:410.12:491.98:5711:17Waxing Gibbous30Tue
31Wed10:343.59:355.54:15-0.13:192.18:5611:18Full Moon31Wed
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 1:15 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 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