Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 5:06 am (-0.6 ft)
Next high tide : in 38m at 9:24 pm (5.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Oct 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:016.44:491.35:55-0.46:586:46Waxing Crescent1Mon
2Tue12:114.611:41 AM6.45:271.86:51-0.56:596:45Waxing Crescent2Tue
3Wed1:174.212:256.26:072.47:51-0.36:596:44Waxing Crescent3Wed
4Thu2:353.81:165.96:542.89:00-0.17:006:42Waxing Crescent4Thu
5Fri4:123.72:185.57:553.210:160.17:016:41First Quarter5Fri
6Sat5:443.93:385.19:393.411:290.27:026:39First Quarter6Sat
7Sun6:494.15:044.811:293.27:026:38First Quarter7Sun
8Mon7:334.36:184.812:300.312:452.87:036:37First Quarter8Mon
9Tue8:064.57:194.81:200.41:402.37:046:35Waxing Gibbous9Tue
10Wed8:324.78:104.72:000.62:231.97:056:34Waxing Gibbous10Wed
11Thu8:544.98:534.72:320.82:591.57:066:33Waxing Gibbous11Thu
12Fri9:145.19:334.52:591.13:331.17:076:31Waxing Gibbous12Fri
13Sat9:335.310:124.43:231.44:050.87:076:30Full Moon13Sat
14Sun9:535.410:524.23:451.74:380.67:086:29Full Moon14Sun
15Mon10:155.611:354.04:072.05:140.47:096:27Full Moon15Mon
16Tue10:395.64:302.45:510.37:106:26Full Moon16Tue
17Wed12:223.811:05 AM5.64:542.76:330.37:116:25Waning Gibbous17Wed
18Thu1:173.611:36 AM5.55:182.97:190.37:126:24Waning Gibbous18Thu
19Fri2:263.512:135.45:443.28:130.47:126:22Waning Gibbous19Fri
20Sat4:073.41:005.26:183.49:180.47:136:21Waning Gibbous20Sat
21Sun2:034.910:260.47:146:20Third Quarter21Sun
22Mon6:183.83:294.79:523.511:260.37:156:19Third Quarter22Mon
23Tue6:454.14:584.711:333.17:166:18Third Quarter23Tue
24Wed7:114.56:154.712:150.312:412.47:176:16Waning Crescent24Wed
25Thu7:385.07:234.812:590.41:371.67:186:15Waning Crescent25Thu
26Fri8:075.58:254.81:390.62:280.77:196:14Waning Crescent26Fri
27Sat8:386.19:234.72:170.93:170.07:206:13Waning Crescent27Sat
28Sun9:126.510:204.62:551.34:05-0.67:216:12New Moon28Sun
29Mon9:486.811:194.43:331.74:55-1.07:216:11New Moon29Mon
30Tue10:276.84:122.15:46-1.17:226:10New Moon30Tue
31Wed12:204.211:09 AM6.74:542.56:39-1.07:236:09Waxing 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 1:15 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 spring phase. Tonight's moon is 99% 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 (99% 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