Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 9:16 am (2.5 ft)
Next high tide : in 5h 10m at 5:34 am (2.9 ft)
Sunset today : 11:08 pm
Sunrise tomorrow : 9:23 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:035.59:155.52:460.23:100.710:059:52Waxing Gibbous1Mon
2Tue9:365.910:085.33:230.54:000.210:069:51Full Moon2Tue
3Wed10:106.211:025.04:000.84:49-0.210:079:50Full Moon3Wed
4Thu10:476.411:594.64:381.35:40-0.410:079:48Full Moon4Thu
5Fri11:266.35:171.86:32-0.410:089:47Waning Gibbous5Fri
6Sat1:004.312:086.15:582.37:27-0.210:099:45Waning Gibbous6Sat
7Sun2:084.012:535.76:432.78:270.110:109:44Waning Gibbous7Sun
8Mon3:303.81:465.37:373.19:360.410:109:43Third Quarter8Mon
9Tue5:003.82:534.98:573.310:490.510:119:41Third Quarter9Tue
10Wed6:124.04:164.610:473.211:520.710:129:40Third Quarter10Wed
11Thu7:014.25:344.412:092.910:139:39Third Quarter11Thu
12Fri7:374.46:404.412:450.71:082.510:149:37Waning Crescent12Fri
13Sat8:044.67:344.51:260.81:532.110:159:36Waning Crescent13Sat
14Sun8:274.88:214.52:001.02:311.610:159:35Waning Crescent14Sun
15Mon8:485.09:024.52:291.23:051.210:169:34Waning Crescent15Mon
16Tue9:095.29:424.42:541.43:380.810:179:32Waning Crescent16Tue
17Wed9:315.510:224.33:181.74:130.510:189:31New Moon17Wed
18Thu9:545.611:044.23:431.94:490.310:199:30New Moon18Thu
19Fri10:205.711:514.04:092.25:270.110:209:29New Moon19Fri
20Sat10:495.84:362.46:100.010:219:27Waxing Crescent20Sat
21Sun12:423.811:22 AM5.85:072.76:560.010:219:26Waxing Crescent21Sun
22Mon1:413.712:015.75:422.97:480.010:229:25Waxing Crescent22Mon
23Tue2:533.612:495.56:273.28:470.110:239:24Waxing Crescent23Tue
24Wed4:143.71:515.27:363.39:530.210:249:23First Quarter24Wed
25Thu5:183.93:114.99:243.310:560.210:259:22First Quarter25Thu
26Fri6:044.24:414.711:112.911:510.310:269:20First Quarter26Fri
27Sat6:424.76:034.612:272.310:279:19First Quarter27Sat
28Sun7:175.27:154.612:400.51:281.510:289:18Waxing Gibbous28Sun
29Mon7:515.78:204.61:240.72:210.710:299:17Waxing Gibbous29Mon
30Tue8:266.19:184.62:061.03:100.010:309:16Waxing Gibbous30Tue
31Wed9:016.410:134.52:451.43:56-0.510:309:15Full 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 7:25 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 neap phase. Tonight's moon is 44% 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 minimum.

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 Third Quarter (44% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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