Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 17m at 11:21 am (1.1 ft)
Next high tide : 6:14 pm (5.0 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 - May 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:236.03:233.58:09-1.27:082.86:117:49Waxing Crescent1Thu
2Fri1:185.54:463.69:14-0.88:303.06:107:49First Quarter2Fri
3Sat2:254.95:513.810:23-0.510:212.96:097:50First Quarter3Sat
4Sun3:464.46:404.011:26-0.311:542.56:087:51First Quarter4Sun
5Mon5:114.17:184.312:200.06:077:52First Quarter5Mon
6Tue6:253.97:494.51:032.01:050.36:067:53Waxing Gibbous6Tue
7Wed7:313.88:154.71:571.51:420.76:057:53Waxing Gibbous7Wed
8Thu8:273.78:385.02:400.92:121.06:047:54Waxing Gibbous8Thu
9Fri9:163.68:595.13:180.52:381.46:037:55Waxing Gibbous9Fri
10Sat10:013.59:205.33:520.13:021.86:027:56Full Moon10Sat
11Sun10:463.59:425.44:26-0.23:252.16:017:57Full Moon11Sun
12Mon11:323.410:065.55:00-0.43:492.46:007:57Full Moon12Mon
13Tue12:213.35:37-0.54:142.66:007:58Full Moon13Tue
14Wed1:133.36:16-0.54:412.85:597:59Waning Gibbous14Wed
15Thu2:123.26:58-0.55:122.95:588:00Waning Gibbous15Thu
16Fri3:223.27:43-0.45:513.15:578:01Waning Gibbous16Fri
17Sat12:215.04:343.38:33-0.46:523.25:578:01Waning Gibbous17Sat
18Sun1:114.85:193.59:26-0.38:283.25:568:02Third Quarter18Sun
19Mon2:154.55:503.810:20-0.110:273.05:558:03Third Quarter19Mon
20Tue3:384.16:174.111:090.011:522.45:558:04Third Quarter20Tue
21Wed5:063.96:454.611:540.35:548:04Third Quarter21Wed
22Thu6:283.77:155.212:581.612:360.65:538:05Waning Crescent22Thu
23Fri7:443.77:485.71:540.71:171.05:538:06Waning Crescent23Fri
24Sat8:533.78:246.22:46-0.21:581.45:528:07Waning Crescent24Sat
25Sun9:563.79:026.63:35-0.92:401.85:528:07New Moon25Sun
26Mon10:573.79:446.74:24-1.43:242.15:518:08New Moon26Mon
27Tue11:593.710:286.75:15-1.74:112.45:518:09New Moon27Tue
28Wed12:593.76:06-1.85:022.65:508:09Waxing Crescent28Wed
29Thu1:593.76:58-1.66:012.85:508:10Waxing Crescent29Thu
30Fri12:076.03:003.87:50-1.37:072.95:508:11Waxing Crescent30Fri
31Sat1:015.54:013.98:43-0.98:242.95:498:11Waxing Crescent31Sat
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 2:47 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 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