Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:40 pm (2.9 ft)
Next high tide : in 3h 29m at 12:03 pm (3.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:103.15:275.610:271.55:528:21First Quarter1Mon
2Tue6:513.06:166.012:510.511:22 AM2.05:528:21Waxing Gibbous2Tue
3Wed8:183.27:076.31:52-0.212:222.35:538:21Waxing Gibbous3Wed
4Thu9:223.47:596.62:45-0.81:242.45:538:21Waxing Gibbous4Thu
5Fri10:133.68:496.73:34-1.22:242.55:548:21Full Moon5Fri
6Sat10:593.89:376.74:20-1.43:202.45:548:20Full Moon6Sat
7Sun11:424.010:246.55:04-1.54:132.35:558:20Full Moon7Sun
8Mon12:234.15:46-1.35:072.35:568:20Full Moon8Mon
9Tue1:034.26:26-1.06:012.25:568:20Waning Gibbous9Tue
10Wed1:424.37:04-0.66:572.25:578:19Waning Gibbous10Wed
11Thu12:425.02:214.47:39-0.17:562.25:578:19Waning Gibbous11Thu
12Fri1:314.43:024.58:130.59:052.15:588:19Waning Gibbous12Fri
13Sat2:283.73:444.68:461.110:281.95:588:18Third Quarter13Sat
14Sun3:463.24:274.89:221.711:501.65:598:18Third Quarter14Sun
15Mon5:292.95:114.910:032.26:008:17Third Quarter15Mon
16Tue7:212.95:575.012:591.210:54 AM2.56:008:17Third Quarter16Tue
17Wed8:443.16:425.21:530.711:52 AM2.86:018:17Waning Crescent17Wed
18Thu9:303.37:275.52:360.312:512.96:028:16Waning Crescent18Thu
19Fri10:043.48:085.73:13-0.11:442.86:028:15Waning Crescent19Fri
20Sat10:333.68:485.93:47-0.32:312.76:038:15Waning Crescent20Sat
21Sun11:023.79:266.04:20-0.63:142.66:048:14New Moon21Sun
22Mon11:313.810:046.04:52-0.73:572.56:058:14New Moon22Mon
23Tue12:014.05:25-0.84:432.36:058:13New Moon23Tue
24Wed12:314.25:57-0.65:332.16:068:12Waxing Crescent24Wed
25Thu1:044.56:29-0.46:272.06:078:12Waxing Crescent25Thu
26Fri12:145.21:384.87:020.07:271.86:078:11Waxing Crescent26Fri
27Sat1:084.62:165.07:350.68:361.66:088:10Waxing Crescent27Sat
28Sun2:123.93:015.38:101.19:591.26:098:09First Quarter28Sun
29Mon3:383.33:535.58:521.711:240.86:108:08First Quarter29Mon
30Tue5:283.04:525.79:472.36:108:08First Quarter30Tue
31Wed7:173.15:546.012:390.211:01 AM2.66:118:07Waxing Gibbous31Wed
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 1:51 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 100% 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 (100% 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