Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:01 pm (2.8 ft)
Next high tide : in 2h 00m at 1:08 pm (3.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:52 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Aug 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:294.310:286.54:58-1.34:232.06:128:05New Moon1Fri
2Sat12:054.55:37-1.05:161.86:138:05New Moon2Sat
3Sun12:424.76:14-0.66:111.76:148:04Waxing Crescent3Sun
4Mon12:045.41:174.86:480.07:061.66:148:03Waxing Crescent4Mon
5Tue12:534.81:544.97:200.68:061.66:158:02Waxing Crescent5Tue
6Wed1:474.12:324.97:501.39:151.66:168:01Waxing Crescent6Wed
7Thu2:563.43:144.98:191.910:381.46:178:00First Quarter7Thu
8Fri4:393.04:054.98:492.511:591.26:187:59First Quarter8Fri
9Sat6:573.05:024.99:352.96:187:58First Quarter9Sat
10Sun8:453.36:005.01:070.811:07 AM3.26:197:57First Quarter10Sun
11Mon9:203.56:555.22:000.512:293.26:207:55Waxing Gibbous11Mon
12Tue9:433.67:445.42:420.21:293.16:217:54Waxing Gibbous12Tue
13Wed10:043.78:255.63:17-0.12:152.86:217:53Waxing Gibbous13Wed
14Thu10:253.89:035.83:48-0.22:542.66:227:52Waxing Gibbous14Thu
15Fri10:474.09:385.84:17-0.33:322.46:237:51Full Moon15Fri
16Sat11:114.210:155.74:46-0.34:112.16:247:50Full Moon16Sat
17Sun11:364.410:535.55:13-0.24:541.96:247:49Full Moon17Sun
18Mon12:024.65:410.15:401.76:257:47Waning Gibbous18Mon
19Tue12:304.96:090.46:311.56:267:46Waning Gibbous19Tue
20Wed12:234.71:015.26:370.97:271.36:277:45Waning Gibbous20Wed
21Thu1:194.11:375.47:051.58:341.16:277:44Waning Gibbous21Thu
22Fri2:323.52:225.57:362.09:560.96:287:42Third Quarter22Fri
23Sat4:213.13:195.68:152.611:230.56:297:41Third Quarter23Sat
24Sun6:293.24:315.79:233.06:307:40Third Quarter24Sun
25Mon7:563.55:445.812:380.111:11 AM3.16:307:38Waning Crescent25Mon
26Tue8:403.86:536.01:39-0.412:382.96:317:37Waning Crescent26Tue
27Wed9:144.07:546.22:29-0.71:462.66:327:36Waning Crescent27Wed
28Thu9:454.38:476.33:13-0.82:422.16:337:34Waning Crescent28Thu
29Fri10:164.69:356.13:51-0.73:321.76:337:33New Moon29Fri
30Sat10:464.810:215.94:27-0.54:201.46:347:32New Moon30Sat
31Sun11:175.011:065.45:00-0.15:071.26:357:30New Moon31Sun
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 3:04 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 97% 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 Full Moon (97% 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