Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 05m at 5:47 pm (2.8 ft)
Next high tide : 11:45 pm (5.3 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:476.49:254.01:242.03:01-0.810:007:58New Moon1Sun
2Mon8:276.610:154.12:082.13:45-1.210:007:57New Moon2Mon
3Tue9:096.711:064.22:542.24:31-1.310:017:57New Moon3Tue
4Wed9:556.611:594.23:442.35:19-1.310:027:57Waxing Crescent4Wed
5Thu10:456.34:402.46:08-1.210:037:57Waxing Crescent5Thu
6Fri12:534.311:40 AM5.85:442.56:58-0.810:047:57Waxing Crescent6Fri
7Sat1:494.512:415.26:572.57:50-0.310:057:57Waxing Crescent7Sat
8Sun2:474.71:534.58:242.48:460.210:057:57First Quarter8Sun
9Mon3:434.93:203.99:572.09:430.710:067:58First Quarter9Mon
10Tue4:355.24:513.611:181.410:381.210:077:58First Quarter10Tue
11Wed5:225.56:163.512:240.810:087:58Waxing Gibbous11Wed
12Thu6:065.77:273.61:180.310:087:58Waxing Gibbous12Thu
13Fri6:465.98:243.712:191.92:03-0.110:097:58Waxing Gibbous13Fri
14Sat7:236.09:113.81:042.22:42-0.410:107:59Waxing Gibbous14Sat
15Sun7:576.09:533.81:442.43:19-0.510:107:59Full Moon15Sun
16Mon8:305.910:323.82:212.53:53-0.610:117:59Full Moon16Mon
17Tue9:025.811:103.82:572.64:27-0.610:128:00Full Moon17Tue
18Wed9:345.711:463.93:332.65:00-0.510:128:00Full Moon18Wed
19Thu10:085.54:122.75:33-0.310:138:01Waning Gibbous19Thu
20Fri12:243.910:43 AM5.24:542.76:06-0.110:138:01Waning Gibbous20Fri
21Sat1:023.911:20 AM4.85:422.86:390.210:148:01Waning Gibbous21Sat
22Sun1:434.012:024.46:372.87:130.510:148:02Waning Gibbous22Sun
23Mon2:264.112:523.97:482.77:500.810:158:03Third Quarter23Mon
24Tue3:094.32:033.49:172.58:321.210:158:03Third Quarter24Tue
25Wed3:514.63:393.110:382.09:211.610:168:04Third Quarter25Wed
26Thu4:324.95:153.011:421.410:141.810:168:04Third Quarter26Thu
27Fri5:135.36:373.112:350.710:168:05Waning Crescent27Fri
28Sat5:555.77:403.41:210.010:178:06Waning Crescent28Sat
29Sun6:406.18:313.612:032.22:05-0.710:178:06Waning Crescent29Sun
30Mon7:256.59:163.812:582.22:48-1.210:178:07Waning Crescent30Mon
31Tue8:116.710:004.11:512.13:31-1.510:178:08New 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 8:46 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 94% 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 Waning Gibbous (94% 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