Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 2:25 pm (2.9 ft)
Next high tide : in 6h 18m at 10:51 am (3.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - May 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:176.03:243.48:07-1.26:572.86:107:49Waxing Crescent1Sun
2Mon1:145.64:443.59:12-1.08:213.06:097:50First Quarter2Mon
3Tue2:235.15:453.810:21-0.710:132.96:087:51First Quarter3Tue
4Wed3:464.76:334.111:23-0.511:482.46:077:51First Quarter4Wed
5Thu5:124.37:124.512:17-0.26:067:52First Quarter5Thu
6Fri6:304.17:454.81:011.81:040.16:057:53Waxing Gibbous6Fri
7Sat7:403.98:165.11:591.11:440.56:047:54Waxing Gibbous7Sat
8Sun8:413.88:435.42:480.52:191.06:037:55Waxing Gibbous8Sun
9Mon9:343.79:095.53:310.02:501.46:037:55Waxing Gibbous9Mon
10Tue10:253.69:355.64:10-0.33:181.86:027:56Full Moon10Tue
11Wed11:143.510:005.64:48-0.53:442.26:017:57Full Moon11Wed
12Thu12:043.45:25-0.64:112.56:007:58Full Moon12Thu
13Fri12:553.36:03-0.64:392.75:597:59Full Moon13Fri
14Sat1:493.36:43-0.55:092.95:587:59Waning Gibbous14Sat
15Sun2:513.27:26-0.45:453.05:588:00Waning Gibbous15Sun
16Mon12:074.94:033.28:12-0.26:333.15:578:01Waning Gibbous16Mon
17Tue12:504.65:043.49:020.07:463.25:568:02Waning Gibbous17Tue
18Wed1:414.35:433.59:550.19:393.25:568:03Third Quarter18Wed
19Thu2:494.06:113.810:440.311:202.85:558:03Third Quarter19Thu
20Fri4:143.76:344.111:270.55:548:04Third Quarter20Fri
21Sat5:363.56:584.512:282.212:070.75:548:05Third Quarter21Sat
22Sun6:513.57:235.01:221.512:441.05:538:05Waning Crescent22Sun
23Mon8:013.57:525.52:090.81:211.35:538:06Waning Crescent23Mon
24Tue9:043.58:246.02:540.01:591.75:528:07Waning Crescent24Tue
25Wed10:033.69:016.43:39-0.72:382.05:528:08New Moon25Wed
26Thu11:013.69:416.64:25-1.33:202.25:518:08New Moon26Thu
27Fri12:013.75:14-1.64:062.55:518:09New Moon27Fri
28Sat1:003.76:06-1.84:582.65:508:10Waxing Crescent28Sat
29Sun1:593.76:58-1.75:592.75:508:10Waxing Crescent29Sun
30Mon12:086.23:003.87:52-1.57:082.85:508:11Waxing Crescent30Mon
31Tue1:075.73:594.08:46-1.18:312.75:498:12Waxing Crescent31Tue
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 12:38 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 96% 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 (96% 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