Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 5:47 pm (2.8 ft)
Next high tide : in 4h 21m at 1:41 pm (3.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:59 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:165.210:195.34:030.24:171.110:049:54Full Moon1Sat
2Sun10:445.311:025.04:340.64:580.810:059:52Full Moon2Sun
3Mon11:115.411:484.65:031.15:400.710:069:51Full Moon3Mon
4Tue11:385.35:311.66:210.710:079:49Waning Gibbous4Tue
5Wed12:374.212:055.35:582.17:050.710:079:48Waning Gibbous5Wed
6Thu1:323.912:345.16:252.67:540.810:089:47Waning Gibbous6Thu
7Fri2:433.61:074.96:523.08:541.010:099:45Waning Gibbous7Fri
8Sat4:323.51:494.77:243.310:091.010:109:44Third Quarter8Sat
9Sun6:273.62:554.58:403.611:230.910:119:42Third Quarter9Sun
10Mon7:243.84:254.411:083.610:119:41Third Quarter10Mon
11Tue7:524.05:434.512:230.812:253.310:129:40Third Quarter11Tue
12Wed8:144.26:444.71:100.61:152.910:139:38Waning Crescent12Wed
13Thu8:354.57:364.91:490.51:562.410:149:37Waning Crescent13Thu
14Fri8:554.78:235.12:230.42:341.910:159:36Waning Crescent14Fri
15Sat9:175.09:085.12:540.43:121.310:169:35Waning Crescent15Sat
16Sun9:415.49:545.13:240.63:530.810:169:33New Moon16Sun
17Mon10:095.710:434.93:550.84:360.310:179:32New Moon17Mon
18Tue10:396.011:364.64:271.25:24-0.110:189:31New Moon18Tue
19Wed11:136.25:011.76:15-0.310:199:30Waxing Crescent19Wed
20Thu12:374.311:52 AM6.25:392.27:11-0.410:209:28Waxing Crescent20Thu
21Fri1:464.012:386.16:212.68:13-0.410:219:27Waxing Crescent21Fri
22Sat3:113.81:325.87:133.09:24-0.310:229:26Waxing Crescent22Sat
23Sun4:483.92:415.48:323.310:39-0.210:229:25First Quarter23Sun
24Mon6:044.14:095.110:293.311:47-0.110:239:24First Quarter24Mon
25Tue6:584.45:345.012:042.910:249:23First Quarter25Tue
26Wed7:394.76:484.912:45-0.11:122.410:259:21Waxing Gibbous26Wed
27Thu8:145.07:504.91:340.12:071.810:269:20Waxing Gibbous27Thu
28Fri8:435.38:444.82:160.32:521.210:279:19Waxing Gibbous28Fri
29Sat9:115.59:314.72:510.73:330.810:289:18Waxing Gibbous29Sat
30Sun9:365.610:164.53:231.14:110.510:299:17Full Moon30Sun
31Mon10:005.711:014.33:511.54:480.310:309:16Full Moon31Mon
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 3:44 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 94% 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 Waning Gibbous (94% 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