Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide (tomorrow) : 3:19 am (-0.2 ft)
Next high tide : in 3h 49m at 7:41 pm (5.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:335.87:223.21:020.07:115:02Waxing Gibbous1Wed
2Thu6:176.18:303.41:53-0.67:115:02Waxing Gibbous2Thu
3Fri7:016.39:243.612:332.52:38-1.07:115:03Waxing Gibbous3Fri
4Sat7:446.310:113.71:242.73:21-1.27:115:04Full Moon4Sat
5Sun8:256.310:533.82:122.74:01-1.27:115:05Full Moon5Sun
6Mon9:046.111:323.82:572.74:40-1.17:115:06Full Moon6Mon
7Tue9:435.93:402.75:17-0.97:115:07Full Moon7Tue
8Wed12:093.810:22 AM5.64:242.75:52-0.77:115:07Waning Gibbous8Wed
9Thu12:443.811:01 AM5.25:112.76:24-0.37:115:08Waning Gibbous9Thu
10Fri1:203.811:40 AM4.76:012.66:550.17:115:09Waning Gibbous10Fri
11Sat1:573.912:234.16:592.67:250.67:115:10Waning Gibbous11Sat
12Sun2:354.11:153.58:142.57:551.17:115:11Third Quarter12Sun
13Mon3:134.22:333.09:462.28:281.67:115:12Third Quarter13Mon
14Tue3:504.54:262.711:081.79:052.07:105:13Third Quarter14Tue
15Wed4:284.76:272.712:111.17:105:14Third Quarter15Wed
16Thu5:085.07:522.91:000.57:105:15Waning Crescent16Thu
17Fri5:505.38:393.21:41-0.17:105:16Waning Crescent17Fri
18Sat6:335.79:163.42:20-0.77:095:17Waning Crescent18Sat
19Sun7:176.09:493.512:492.82:59-1.17:095:18Waning Crescent19Sun
20Mon8:016.310:233.71:402.73:37-1.57:085:19New Moon20Mon
21Tue8:456.510:583.82:292.54:17-1.67:085:20New Moon21Tue
22Wed9:316.411:344.03:192.34:56-1.67:075:21New Moon22Wed
23Thu10:186.24:132.15:35-1.47:075:22Waxing Crescent23Thu
24Fri12:114.211:09 AM5.75:122.06:14-0.97:065:23Waxing Crescent24Fri
25Sat12:504.512:045.06:161.86:52-0.37:065:24Waxing Crescent25Sat
26Sun1:324.71:074.17:291.67:310.47:055:25First Quarter26Sun
27Mon2:185.02:323.48:571.38:141.27:055:26First Quarter27Mon
28Tue3:095.24:242.910:290.89:071.97:045:27First Quarter28Tue
29Wed4:045.46:252.911:480.210:132.47:035:28First Quarter29Wed
30Thu5:005.67:523.212:53-0.37:035:29Waxing Gibbous30Thu
31Fri5:575.78:443.51:46-0.77:025:30Waxing Gibbous31Fri
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 11:30 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 spring phase. Tonight's moon is 85% 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 Waxing Gibbous (85% 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