Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 8:53 am (0.7 ft)
Next high tide : in 4h 56m at 2:06 am (3.9 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 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:194.612:095.75:551.67:040.46:586:46Waxing Crescent1Mon
2Tue1:204.212:495.76:312.18:040.36:596:44Waxing Crescent2Tue
3Wed2:363.81:375.67:132.69:170.37:006:43Waxing Crescent3Wed
4Thu4:163.72:395.48:103.010:360.27:006:42First Quarter4Thu
5Fri5:533.84:005.39:503.311:500.07:016:40First Quarter5Fri
6Sat7:024.15:245.311:353.17:026:39First Quarter6Sat
7Sun7:484.46:375.412:51-0.212:512.77:036:38Waxing Gibbous7Sun
8Mon8:254.77:415.41:44-0.21:512.17:046:36Waxing Gibbous8Mon
9Tue8:575.08:355.52:28-0.12:411.67:046:35Waxing Gibbous9Tue
10Wed9:275.29:245.33:070.13:261.17:056:33Waxing Gibbous10Wed
11Thu9:565.410:105.13:420.44:080.87:066:32Full Moon11Thu
12Fri10:245.610:564.84:140.84:500.57:076:31Full Moon12Fri
13Sat10:525.611:434.54:451.35:310.47:086:30Full Moon13Sat
14Sun11:205.65:141.86:130.47:086:28Waning Gibbous14Sun
15Mon12:334.211:48 AM5.45:432.26:560.47:096:27Waning Gibbous15Mon
16Tue1:303.912:185.26:122.77:430.67:106:26Waning Gibbous16Tue
17Wed2:403.712:515.06:433.18:380.77:116:24Waning Gibbous17Wed
18Thu4:193.61:334.77:233.49:470.97:126:23Third Quarter18Thu
19Fri5:593.72:344.48:453.610:590.97:136:22Third Quarter19Fri
20Sat6:573.94:044.311:033.511:590.87:146:21Third Quarter20Sat
21Sun7:294.15:264.312:203.27:156:20Third Quarter21Sun
22Mon7:544.36:304.412:480.71:102.87:156:18Waning Crescent22Mon
23Tue8:154.67:254.61:280.61:512.37:166:17Waning Crescent23Tue
24Wed8:374.88:144.72:020.62:281.87:176:16Waning Crescent24Wed
25Thu8:595.29:004.82:330.73:061.27:186:15Waning Crescent25Thu
26Fri9:235.59:464.83:040.83:450.67:196:14New Moon26Fri
27Sat9:505.810:344.73:351.14:270.27:206:13New Moon27Sat
28Sun10:206.111:284.54:071.45:12-0.27:216:12New Moon28Sun
29Mon10:546.34:421.86:02-0.57:226:11New Moon29Mon
30Tue12:274.311:33 AM6.35:202.36:55-0.67:236:10Waxing Crescent30Tue
31Wed1:334.012:186.16:042.77:53-0.67:246:09Waxing Crescent31Wed
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 5:29 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 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