Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 3:40 pm (2.9 ft)
Next high tide : in 5h 39m at 12:03 pm (3.5 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 8:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Mar 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:454.24:532.810:211.18:592.49:389:05Third Quarter1Thu
2Fri3:504.26:283.011:320.810:292.69:379:06Third Quarter2Fri
3Sat4:534.37:203.212:280.59:369:07Third Quarter3Sat
4Sun5:494.57:533.41:110.29:349:07Waning Crescent4Sun
5Mon6:384.78:203.712:352.31:47-0.19:339:08Waning Crescent5Mon
6Tue7:204.98:453.91:182.02:19-0.39:329:09Waning Crescent6Tue
7Wed7:585.19:104.11:561.82:50-0.49:309:10Waning Crescent7Wed
8Thu8:365.29:374.32:341.53:20-0.49:299:11New Moon8Thu
9Fri9:145.210:064.53:131.23:51-0.39:289:12New Moon9Fri
10Sat9:565.010:374.73:540.94:24-0.19:269:13New Moon10Sat
11Sun11:414.85:390.75:570.210:2510:13New Moon11Sun
12Mon12:124.912:314.46:290.56:330.710:2410:14Waxing Crescent12Mon
13Tue12:495.01:283.97:230.47:111.110:2210:15Waxing Crescent13Tue
14Wed1:325.02:403.58:270.47:561.610:2110:16Waxing Crescent14Wed
15Thu2:245.04:143.29:440.38:572.110:2010:17First Quarter15Thu
16Fri3:294.95:523.211:060.110:252.310:1810:18First Quarter16Fri
17Sat4:444.97:103.512:20-0.210:1710:18First Quarter17Sat
18Sun5:585.08:053.81:21-0.410:1510:19Waxing Gibbous18Sun
19Mon7:055.18:474.21:082.02:13-0.610:1410:20Waxing Gibbous19Mon
20Tue8:045.29:224.42:081.62:57-0.610:1310:21Waxing Gibbous20Tue
21Wed8:555.39:564.62:581.23:36-0.510:1110:22Waxing Gibbous21Wed
22Thu9:415.210:274.83:430.84:12-0.310:1010:23Full Moon22Thu
23Fri10:255.010:584.94:260.64:450.010:0810:23Full Moon23Fri
24Sat11:084.711:294.95:070.45:170.410:0710:24Full Moon24Sat
25Sun11:514.35:490.35:480.810:0510:25Full Moon25Sun
26Mon12:004.912:374.06:310.46:181.310:0410:26Waning Gibbous26Mon
27Tue12:314.71:263.67:150.46:471.710:0310:27Waning Gibbous27Tue
28Wed1:034.62:253.28:040.67:192.110:0110:27Waning Gibbous28Wed
29Thu1:404.43:463.09:030.77:572.510:0010:28Waning Gibbous29Thu
30Fri2:274.25:273.010:160.89:062.79:5810:29Third Quarter30Fri
31Sat3:334.06:483.211:280.711:002.89:5710:30Third Quarter31Sat
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 1:51 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 100% 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 (100% 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