Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:52 pm (2.5 ft)
Next high tide : in 3h 42m at 3:21 pm (4.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:164.810:135.04:030.74:131.46:586:46Full Moon1Mon
2Tue10:385.010:504.84:280.94:471.26:586:45Full Moon2Tue
3Wed11:015.111:304.54:531.25:241.06:596:44Full Moon3Wed
4Thu11:265.25:181.66:040.97:006:42Waning Gibbous4Thu
5Fri12:154.211:53 AM5.35:442.06:480.87:016:41Waning Gibbous5Fri
6Sat1:083.912:255.36:122.47:390.77:026:39Waning Gibbous6Sat
7Sun2:143.61:035.26:432.78:420.77:026:38Waning Gibbous7Sun
8Mon3:513.51:535.17:233.19:580.67:036:37Third Quarter8Mon
9Tue5:373.63:045.08:393.411:140.47:046:35Third Quarter9Tue
10Wed6:453.94:315.010:423.47:056:34Third Quarter10Wed
11Thu7:274.25:505.212:170.112:093.07:066:33Third Quarter11Thu
12Fri8:014.56:595.41:11-0.11:132.47:066:31Waning Crescent12Fri
13Sat8:324.98:005.51:57-0.22:081.87:076:30Waning Crescent13Sat
14Sun9:045.38:565.62:39-0.12:581.17:086:29Waning Crescent14Sun
15Mon9:365.79:485.53:180.13:460.57:096:27New Moon15Mon
16Tue10:096.010:415.23:550.54:340.17:106:26New Moon16Tue
17Wed10:436.111:364.84:321.05:24-0.27:116:25New Moon17Wed
18Thu11:196.15:091.56:15-0.37:126:24Waxing Crescent18Thu
19Fri12:354.511:57 AM6.05:482.17:07-0.27:126:22Waxing Crescent19Fri
20Sat1:404.112:375.76:282.68:030.07:136:21Waxing Crescent20Sat
21Sun2:573.91:225.37:153.09:060.27:146:20Waxing Crescent21Sun
22Mon4:333.92:174.98:203.410:170.47:156:19First Quarter22Mon
23Tue5:584.03:344.510:153.511:250.57:166:18First Quarter23Tue
24Wed6:564.25:004.311:553.37:176:17First Quarter24Wed
25Thu7:344.46:134.312:220.612:592.97:186:15First Quarter25Thu
26Fri8:024.57:124.41:090.61:452.47:196:14Waxing Gibbous26Fri
27Sat8:264.78:014.51:480.72:212.07:206:13Waxing Gibbous27Sat
28Sun7:474.97:444.51:200.91:541.66:205:12Waxing Gibbous28Sun
29Mon8:075.18:234.51:481.02:261.26:215:11Waxing Gibbous29Mon
30Tue8:285.39:034.42:141.32:590.86:225:10Full Moon30Tue
31Wed8:515.59:454.32:401.53:340.56:235:09Full 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 6:06 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 (71% illuminated). This places Port San Luis, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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