Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 1h 10m at 11:18 pm (1.0 ft)
Next high tide : 5:34 am (2.9 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:523.25:395.512:001.210:48 AM2.06:128:06First Quarter1Mon
2Tue7:183.46:345.91:040.511:55 AM2.26:138:05Waxing Gibbous2Tue
3Wed8:233.77:296.22:00-0.11:002.26:138:04Waxing Gibbous3Wed
4Thu9:144.08:216.52:49-0.62:012.16:148:03Waxing Gibbous4Thu
5Fri9:594.29:116.73:35-1.02:571.96:158:02Full Moon5Fri
6Sat10:424.510:006.64:19-1.13:501.76:168:01Full Moon6Sat
7Sun11:244.710:496.45:02-1.14:441.66:168:00Full Moon7Sun
8Mon12:074.95:45-0.85:381.56:177:59Waning Gibbous8Mon
9Tue12:505.06:27-0.56:351.46:187:58Waning Gibbous9Tue
10Wed12:315.41:345.07:080.17:341.56:197:57Waning Gibbous10Wed
11Thu1:264.82:205.07:490.78:391.56:197:56Waning Gibbous11Thu
12Fri2:294.13:115.08:331.39:571.56:207:55Third Quarter12Fri
13Sat3:483.64:074.99:241.811:191.46:217:54Third Quarter13Sat
14Sun5:233.45:054.910:252.36:227:52Third Quarter14Sun
15Mon6:563.46:015.012:321.111:33 AM2.56:227:51Third Quarter15Mon
16Tue8:073.56:535.11:320.812:362.66:237:50Waning Crescent16Tue
17Wed8:533.77:395.32:180.51:302.66:247:49Waning Crescent17Wed
18Thu9:273.98:195.42:560.32:142.56:257:48Waning Crescent18Thu
19Fri9:564.08:565.53:290.22:522.36:267:47Waning Crescent19Fri
20Sat10:234.19:305.63:590.13:272.26:267:45New Moon20Sat
21Sun10:504.210:045.54:290.14:032.06:277:44New Moon21Sun
22Mon11:184.410:405.44:570.14:401.96:287:43New Moon22Mon
23Tue11:474.511:175.25:260.35:211.86:297:41New Moon23Tue
24Wed12:174.65:560.56:041.76:297:40Waxing Crescent24Wed
25Thu12:494.86:260.86:521.66:307:39Waxing Crescent25Thu
26Fri12:444.51:254.96:581.17:471.56:317:38Waxing Crescent26Fri
27Sat1:394.12:075.07:331.58:541.46:327:36Waxing Crescent27Sat
28Sun2:503.72:595.18:152.010:151.26:327:35First Quarter28Sun
29Mon4:243.44:025.29:142.311:340.86:337:34First Quarter29Mon
30Tue6:003.55:105.410:352.66:347:32First Quarter30Tue
31Wed7:163.76:165.712:410.411:55 AM2.56:357:31Waxing 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 2:26 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 53% 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 (53% 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