Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 1:49 am (0.6 ft)
Next high tide : in 3h 20m at 6:28 pm (5.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 8:56 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:595.46:483.012:290.510:188:08Third Quarter1Fri
2Sat5:445.58:063.21:230.010:188:09Waning Crescent2Sat
3Sun6:265.68:583.42:06-0.310:188:10Waning Crescent3Sun
4Mon7:065.79:383.512:402.82:44-0.510:188:11Waning Crescent4Mon
5Tue7:435.810:113.51:252.93:19-0.710:188:12Waning Crescent5Tue
6Wed8:185.810:413.62:042.83:52-0.710:188:12New Moon6Wed
7Thu8:515.711:093.62:402.74:23-0.710:188:13New Moon7Thu
8Fri9:255.711:383.73:162.74:54-0.710:188:14New Moon8Fri
9Sat9:585.53:552.65:23-0.510:188:15New Moon9Sat
10Sun12:073.810:32 AM5.24:372.55:52-0.310:188:16Waxing Crescent10Sun
11Mon12:373.911:08 AM4.85:242.56:190.010:188:17Waxing Crescent11Mon
12Tue1:074.011:48 AM4.36:172.46:460.410:188:18Waxing Crescent12Tue
13Wed1:394.212:383.77:212.37:140.910:178:19Waxing Crescent13Wed
14Thu2:144.51:493.18:452.07:441.410:178:20First Quarter14Thu
15Fri2:554.73:432.710:161.58:231.910:178:21First Quarter15Fri
16Sat3:425.15:512.711:310.89:212.310:178:22First Quarter16Sat
17Sun4:335.57:272.912:320.110:168:23Waxing Gibbous17Sun
18Mon5:285.98:193.21:24-0.710:168:24Waxing Gibbous18Mon
19Tue6:246.38:593.52:10-1.310:168:25Waxing Gibbous19Tue
20Wed7:186.69:373.812:552.62:54-1.710:158:26Waxing Gibbous20Wed
21Thu8:106.810:144.01:542.33:37-1.810:158:27Full Moon21Thu
22Fri9:006.710:524.22:502.04:19-1.810:148:28Full Moon22Fri
23Sat9:496.511:314.53:461.84:59-1.510:148:29Full Moon23Sat
24Sun10:405.94:431.65:38-1.010:138:30Waning Gibbous24Sun
25Mon12:104.711:32 AM5.25:431.56:15-0.410:138:31Waning Gibbous25Mon
26Tue12:504.912:274.46:461.46:510.310:128:32Waning Gibbous26Tue
27Wed1:335.01:333.67:591.37:261.110:118:33Third Quarter27Wed
28Thu2:205.03:062.99:251.18:051.810:118:34Third Quarter28Thu
29Fri3:125.05:122.710:510.88:562.410:108:35Third Quarter29Fri
30Sat4:095.07:212.912:060.410:098:36Third Quarter30Sat
31Sun5:065.08:213.21:030.010:098:37Waning Crescent31Sun
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 10:08 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 67% 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 First Quarter (67% 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