Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, June 10, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 3h 28m at 1:10 am (1.1 ft)
Next high tide : 6:50 am (3.2 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:48 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:193.911:48 AM4.46:142.66:560.47:115:01Waxing Crescent1Sat
2Sun1:554.112:323.97:172.67:260.87:115:02Waxing Crescent2Sun
3Mon2:334.21:323.38:402.47:571.37:115:03First Quarter3Mon
4Tue3:124.53:092.810:122.08:331.77:115:04First Quarter4Tue
5Wed3:524.75:072.711:271.59:192.17:115:04First Quarter5Wed
6Thu4:345.06:542.812:240.87:115:05First Quarter6Thu
7Fri5:175.47:593.11:100.17:115:06Waxing Gibbous7Fri
8Sat6:035.88:423.31:52-0.57:115:07Waxing Gibbous8Sat
9Sun6:506.19:193.512:182.72:32-1.07:115:08Waxing Gibbous9Sun
10Mon7:376.59:563.71:152.63:12-1.47:115:09Full Moon10Mon
11Tue8:246.710:333.92:082.43:53-1.77:115:10Full Moon11Tue
12Wed9:116.711:114.13:002.24:34-1.77:115:11Full Moon12Wed
13Thu9:596.411:504.43:562.05:14-1.57:115:12Waning Gibbous13Thu
14Fri10:516.04:551.95:54-1.17:115:12Waning Gibbous14Fri
15Sat12:314.611:45 AM5.35:581.76:33-0.57:105:13Waning Gibbous15Sat
16Sun1:144.912:454.47:071.57:130.27:105:14Waning Gibbous16Sun
17Mon2:015.12:003.68:291.37:551.07:105:15Third Quarter17Mon
18Tue2:525.33:413.09:591.08:451.77:095:16Third Quarter18Tue
19Wed3:485.45:382.911:210.59:472.27:095:17Third Quarter19Wed
20Thu4:445.57:213.112:300.07:095:18Waning Crescent20Thu
21Fri5:405.68:223.31:25-0.47:085:19Waning Crescent21Fri
22Sat6:335.79:023.512:092.72:10-0.77:085:20Waning Crescent22Sat
23Sun7:205.79:353.61:082.72:49-0.87:075:21Waning Crescent23Sun
24Mon8:005.710:033.71:532.63:24-0.87:075:22New Moon24Mon
25Tue8:375.710:303.82:322.43:55-0.87:065:23New Moon25Tue
26Wed9:115.610:553.83:092.34:24-0.67:065:24New Moon26Wed
27Thu9:445.311:213.93:452.14:51-0.47:055:25New Moon27Thu
28Fri10:185.011:464.14:242.05:16-0.27:045:26Waxing Crescent28Fri
29Sat10:534.75:051.95:410.27:045:28Waxing Crescent29Sat
30Sun12:134.211:30 AM4.25:501.96:040.67:035:29Waxing Crescent30Sun
31Mon12:404.312:123.66:401.86:261.17:025:30Waxing Crescent31Mon
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 4:00 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 transitional phase. Tonight's moon is 35% 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 Third Quarter (35% 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