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 : 1:02 pm (2.5 ft)
Next high tide : in 1h 03m at 9:12 am (3.1 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 - Jun 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:035.12:313.77:30-0.37:002.75:498:12Waxing Crescent1Sun
2Mon12:434.73:223.78:100.07:582.85:498:12Waxing Crescent2Mon
3Tue1:284.34:133.88:530.39:142.85:498:13Waxing Crescent3Tue
4Wed2:213.94:594.09:380.610:432.65:488:13First Quarter4Wed
5Thu3:333.55:394.310:250.911:572.25:488:14First Quarter5Thu
6Fri4:563.26:144.511:111.25:488:15First Quarter6Fri
7Sat6:163.16:484.912:561.611:55 AM1.45:488:15First Quarter7Sat
8Sun7:283.27:215.21:441.112:381.65:488:16Waxing Gibbous8Sun
9Mon8:293.37:565.62:270.51:211.85:488:16Waxing Gibbous9Mon
10Tue9:213.58:325.93:07-0.12:051.95:488:17Waxing Gibbous10Tue
11Wed10:093.69:116.23:48-0.62:492.05:478:17Full Moon11Wed
12Thu10:573.89:526.44:30-1.03:352.15:478:17Full Moon12Thu
13Fri11:463.910:366.45:13-1.34:242.15:478:18Full Moon13Fri
14Sat12:364.05:59-1.45:182.25:478:18Waning Gibbous14Sat
15Sun1:264.26:45-1.36:172.25:488:19Waning Gibbous15Sun
16Mon12:165.82:174.37:32-1.17:232.25:488:19Waning Gibbous16Mon
17Tue1:125.33:114.58:21-0.78:392.25:488:19Waning Gibbous17Tue
18Wed2:164.74:074.89:12-0.210:071.95:488:20Third Quarter18Wed
19Thu3:334.15:005.110:070.311:321.55:488:20Third Quarter19Thu
20Fri5:013.65:515.311:020.85:488:20Third Quarter20Fri
21Sat6:293.46:385.612:460.911:57 AM1.35:488:20Waning Crescent21Sat
22Sun7:503.47:235.81:480.412:501.65:498:21Waning Crescent22Sun
23Mon8:563.58:055.92:40-0.11:401.95:498:21Waning Crescent23Mon
24Tue9:493.68:445.93:25-0.42:262.15:498:21Waning Crescent24Tue
25Wed10:353.79:205.94:05-0.63:082.35:508:21New Moon25Wed
26Thu11:173.79:555.84:42-0.63:482.45:508:21New Moon26Thu
27Fri11:563.810:305.75:18-0.64:272.45:508:21New Moon27Fri
28Sat12:333.85:52-0.55:072.55:518:21New Moon28Sat
29Sun1:093.96:25-0.45:492.55:518:21Waxing Crescent29Sun
30Mon1:463.96:58-0.26:352.55:518:21Waxing Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 11:07 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 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