Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:19 am (-0.2 ft)
Next high tide : in 3h 33m at 7:41 pm (5.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:57 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:164.94:374.211:172.211:070.59:597:58First Quarter1Thu
2Fri5:555.35:583.912:241.410:007:57Waxing Gibbous2Fri
3Sat6:305.67:103.81:180.710:017:57Waxing Gibbous3Sat
4Sun7:025.98:113.812:331.42:040.210:027:57Waxing Gibbous4Sun
5Mon7:326.09:063.81:101.92:45-0.310:037:57Waxing Gibbous5Mon
6Tue8:016.19:573.81:442.33:23-0.510:047:57Full Moon6Tue
7Wed8:306.110:473.72:162.64:00-0.610:047:57Full Moon7Wed
8Thu9:006.011:353.72:482.84:38-0.610:057:57Full Moon8Thu
9Fri9:315.93:203.05:15-0.610:067:58Full Moon9Fri
10Sat12:223.710:04 AM5.63:563.15:53-0.410:077:58Waning Gibbous10Sat
11Sun1:113.610:40 AM5.44:363.26:33-0.210:087:58Waning Gibbous11Sun
12Mon2:053.611:19 AM5.05:253.37:140.010:087:58Waning Gibbous12Mon
13Tue3:003.712:024.66:273.47:580.310:097:58Waning Gibbous13Tue
14Wed3:463.912:554.27:533.38:430.510:107:59Third Quarter14Wed
15Thu4:224.12:083.89:383.19:280.810:107:59Third Quarter15Thu
16Fri4:514.43:393.410:572.510:101.110:117:59Third Quarter16Fri
17Sat5:184.75:073.311:561.910:501.410:128:00Third Quarter17Sat
18Sun5:455.16:273.312:451.110:128:00Waning Crescent18Sun
19Mon6:155.67:363.41:280.310:138:00Waning Crescent19Mon
20Tue6:496.08:343.612:122.02:11-0.410:138:01Waning Crescent20Tue
21Wed7:266.49:283.712:552.32:54-1.010:148:01Waning Crescent21Wed
22Thu8:066.710:213.81:412.53:39-1.510:148:02New Moon22Thu
23Fri8:506.911:143.92:282.64:27-1.710:158:02New Moon23Fri
24Sat9:376.93:192.65:15-1.810:158:03New Moon24Sat
25Sun12:053.910:28 AM6.64:152.76:04-1.610:168:04Waxing Crescent25Sun
26Mon12:574.011:22 AM6.15:192.76:53-1.210:168:04Waxing Crescent26Mon
27Tue1:504.212:215.56:312.77:43-0.710:168:05Waxing Crescent27Tue
28Wed2:444.41:284.77:562.58:34-0.110:178:05First Quarter28Wed
29Thu3:354.72:514.09:332.29:260.510:178:06First Quarter29Thu
30Fri4:235.04:253.511:001.610:171.110:178:07First Quarter30Fri
31Sat5:075.36:013.212:120.910:178:08First Quarter31Sat
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 11:30 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 84% 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 (84% 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