Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 12:49 am (1.2 ft)
Next high tide : in 3h 45m at 5:49 pm (5.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:316.510:343.92:152.33:56-1.37:115:02Full Moon1Thu
2Fri9:146.611:214.03:022.34:40-1.57:115:03Full Moon2Fri
3Sat10:006.53:532.35:25-1.57:115:03Waning Gibbous3Sat
4Sun12:094.110:49 AM6.24:502.36:11-1.37:115:04Waning Gibbous4Sun
5Mon12:584.311:43 AM5.75:522.36:57-0.97:115:05Waning Gibbous5Mon
6Tue1:504.412:435.07:032.37:46-0.47:115:06Waning Gibbous6Tue
7Wed2:444.71:544.38:282.18:390.27:115:07Third Quarter7Wed
8Thu3:384.93:223.79:591.79:350.87:115:08Third Quarter8Thu
9Fri4:305.24:573.311:211.110:321.37:115:09Third Quarter9Fri
10Sat5:205.56:283.312:280.57:115:09Waning Crescent10Sat
11Sun6:065.77:423.41:230.07:115:10Waning Crescent11Sun
12Mon6:505.88:383.612:222.02:09-0.47:115:11Waning Crescent12Mon
13Tue7:305.99:243.71:112.22:50-0.77:115:12Waning Crescent13Tue
14Wed8:075.910:043.81:552.43:28-0.87:105:13New Moon14Wed
15Thu8:425.810:403.82:342.44:03-0.87:105:14New Moon15Thu
16Fri9:165.711:143.83:112.44:37-0.77:105:15New Moon16Fri
17Sat9:505.511:483.83:482.45:09-0.67:095:16New Moon17Sat
18Sun10:245.34:272.45:41-0.47:095:17Waxing Crescent18Sun
19Mon12:213.810:59 AM4.95:082.46:12-0.17:095:18Waxing Crescent19Mon
20Tue12:563.911:37 AM4.55:542.46:430.37:085:19Waxing Crescent20Tue
21Wed1:333.912:184.06:482.47:150.67:085:20Waxing Crescent21Wed
22Thu2:144.01:113.57:572.47:501.17:075:21First Quarter22Thu
23Fri2:574.22:303.19:282.18:321.57:075:22First Quarter23Fri
24Sat3:424.44:182.810:511.79:241.87:065:23First Quarter24Sat
25Sun4:274.76:002.811:561.110:232.17:065:24First Quarter25Sun
26Mon5:125.17:153.112:480.47:055:25Waxing Gibbous26Mon
27Tue5:595.58:073.31:32-0.27:045:26Waxing Gibbous27Tue
28Wed6:455.98:493.612:212.32:14-0.87:045:27Waxing Gibbous28Wed
29Thu7:326.29:293.81:152.22:55-1.37:035:28Waxing Gibbous29Thu
30Fri8:186.510:094.12:062.03:37-1.57:025:29Full Moon30Fri
31Sat9:056.510:504.32:571.94:19-1.67:025:30Full Moon31Sat
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 9:19 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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