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 1h 25m at 9:24 pm (5.7 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:016.010:134.62:591.23:53-1.19:389:05Full Moon1Thu
2Fri9:495.710:504.83:490.94:31-0.89:379:06Full Moon2Fri
3Sat10:375.311:274.84:380.85:08-0.39:369:07Full Moon3Sat
4Sun11:264.75:290.75:440.39:349:08Waning Gibbous4Sun
5Mon12:054.812:184.16:220.76:190.99:339:08Waning Gibbous5Mon
6Tue12:444.71:193.57:200.86:551.59:329:09Waning Gibbous6Tue
7Wed1:274.62:403.18:290.97:362.09:309:10Third Quarter7Wed
8Thu2:184.44:282.99:500.98:392.59:299:11Third Quarter8Thu
9Fri3:224.36:133.111:070.710:132.79:289:12Third Quarter9Fri
10Sat4:294.37:153.312:100.49:269:13Third Quarter10Sat
11Sun6:324.48:503.51:580.210:2510:14Waning Crescent11Sun
12Mon7:254.59:163.71:322.42:370.010:2410:14Waning Crescent12Mon
13Tue8:094.79:403.82:142.23:10-0.210:2210:15Waning Crescent13Tue
14Wed8:484.910:034.02:511.93:40-0.210:2110:16Waning Crescent14Wed
15Thu9:245.010:274.23:251.64:08-0.210:1910:17New Moon15Thu
16Fri10:005.010:524.34:001.34:37-0.210:1810:18New Moon16Fri
17Sat10:374.911:194.54:361.15:050.010:1710:19New Moon17Sat
18Sun11:174.711:474.75:160.85:350.310:1510:19New Moon18Sun
19Mon12:014.46:000.66:060.710:1410:20Waxing Crescent19Mon
20Tue12:194.812:524.06:470.56:381.110:1210:21Waxing Crescent20Tue
21Wed12:544.91:533.57:420.47:141.610:1110:22Waxing Crescent21Wed
22Thu1:364.93:143.28:480.37:582.110:1010:23Waxing Crescent22Thu
23Fri2:284.94:593.110:070.29:062.410:0810:23First Quarter23Fri
24Sat3:374.86:313.311:270.010:462.610:0710:24First Quarter24Sat
25Sun4:554.97:343.612:36-0.310:0510:25First Quarter25Sun
26Mon6:105.08:194.012:142.41:33-0.610:0410:26Waxing Gibbous26Mon
27Tue7:185.28:564.31:242.02:22-0.810:0210:27Waxing Gibbous27Tue
28Wed8:165.39:304.62:211.53:05-0.710:0110:28Waxing Gibbous28Wed
29Thu9:085.310:034.93:111.03:44-0.610:0010:28Waxing Gibbous29Thu
30Fri9:565.210:355.03:570.64:20-0.39:5810:29Full Moon30Fri
31Sat10:434.911:085.14:420.34:550.19:5710:30Full 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 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 98% 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 (98% 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