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 2h 45m 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 - Jan 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:575.711:584.04:012.45:16-0.610:178:09Full Moon1Tue
2Wed10:355.34:452.45:48-0.310:188:10Waning Gibbous2Wed
3Thu12:334.011:13 AM4.95:312.46:180.110:188:10Waning Gibbous3Thu
4Fri1:084.111:53 AM4.36:222.46:480.510:188:11Waning Gibbous4Fri
5Sat1:464.212:393.87:232.47:180.910:188:12Waning Gibbous5Sat
6Sun2:264.31:393.28:432.37:501.410:188:13Third Quarter6Sun
7Mon3:094.53:122.810:111.98:281.810:188:14Third Quarter7Mon
8Tue3:544.75:052.711:251.49:182.210:188:15Third Quarter8Tue
9Wed4:384.96:452.812:220.910:188:16Third Quarter9Wed
10Thu5:235.27:473.01:080.310:188:16Waning Crescent10Thu
11Fri6:075.58:283.31:47-0.310:178:17Waning Crescent11Fri
12Sat6:515.99:033.512:192.52:25-0.710:178:18Waning Crescent12Sat
13Sun7:356.29:373.71:122.43:02-1.110:178:19Waning Crescent13Sun
14Mon8:186.410:123.92:022.33:40-1.410:178:20New Moon14Mon
15Tue9:036.410:494.22:522.14:19-1.410:178:21New Moon15Tue
16Wed9:496.211:274.43:441.94:57-1.310:168:22New Moon16Wed
17Thu10:385.84:401.75:36-1.010:168:23Waxing Crescent17Thu
18Fri12:074.711:31 AM5.25:401.56:16-0.410:168:24Waxing Crescent18Fri
19Sat12:504.912:294.56:451.46:560.210:158:25Waxing Crescent19Sat
20Sun1:365.11:403.78:021.37:400.910:158:26First Quarter20Sun
21Mon2:295.33:153.29:311.08:321.510:148:27First Quarter21Mon
22Tue3:275.45:053.010:560.59:372.010:148:28First Quarter22Tue
23Wed4:275.56:453.112:090.110:138:29First Quarter23Wed
24Thu5:275.67:513.41:08-0.410:138:30Waxing Gibbous24Thu
25Fri6:225.78:373.612:012.41:56-0.710:128:31Waxing Gibbous25Fri
26Sat7:125.89:133.81:012.42:36-0.810:128:32Waxing Gibbous26Sat
27Sun7:555.89:453.91:502.23:12-0.810:118:33Waxing Gibbous27Sun
28Mon8:345.710:154.02:322.13:45-0.810:108:34Full Moon28Mon
29Tue9:105.510:434.03:112.04:15-0.610:108:35Full Moon29Tue
30Wed9:445.311:104.13:491.94:43-0.310:098:36Full Moon30Wed
31Thu10:195.011:374.24:281.85:090.010:088:37Full Moon31Thu
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