Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 6h 31m at 3:00 am (0.0 ft)
Next high tide (tomorrow) : 10:04 am (3.5 ft)
Sunset today : 11:19 pm
Sunrise tomorrow : 9:13 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jul 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:534.73:373.98:210.18:232.98:5911:28Waxing Crescent1Wed
2Thu1:404.24:114.18:540.59:472.68:5911:28First Quarter2Thu
3Fri2:403.74:444.49:280.911:122.28:5911:27First Quarter3Fri
4Sat4:063.25:174.810:061.49:0011:27First Quarter4Sat
5Sun5:462.95:525.212:231.510:47 AM1.89:0011:27First Quarter5Sun
6Mon7:262.96:325.71:220.811:34 AM2.29:0111:27Waxing Gibbous6Mon
7Tue8:463.17:176.12:130.012:272.59:0111:27Waxing Gibbous7Tue
8Wed9:453.48:056.53:01-0.71:252.79:0211:27Waxing Gibbous8Wed
9Thu10:343.68:546.83:47-1.22:242.79:0311:26Full Moon9Thu
10Fri11:203.79:446.94:34-1.63:212.69:0311:26Full Moon10Fri
11Sat12:053.95:20-1.84:182.59:0411:26Full Moon11Sat
12Sun12:484.16:06-1.75:192.49:0411:25Full Moon12Sun
13Mon1:314.36:51-1.56:232.29:0511:25Waning Gibbous13Mon
14Tue12:216.02:154.57:33-1.07:302.19:0611:25Waning Gibbous14Tue
15Wed1:185.33:014.88:16-0.48:462.09:0611:24Waning Gibbous15Wed
16Thu2:224.53:485.08:580.410:131.79:0711:24Third Quarter16Thu
17Fri3:413.74:365.29:421.111:391.39:0811:23Third Quarter17Fri
18Sat5:203.25:235.410:301.89:0811:23Third Quarter18Sat
19Sun7:093.16:105.512:550.811:22 AM2.39:0911:22Third Quarter19Sun
20Mon8:433.26:575.61:560.312:192.79:1011:22Waning Crescent20Mon
21Tue9:433.47:425.72:46-0.11:172.99:1011:21Waning Crescent21Tue
22Wed10:263.68:235.73:28-0.32:083.09:1111:20Waning Crescent22Wed
23Thu11:003.79:025.84:04-0.42:512.99:1211:20Waning Crescent23Thu
24Fri11:293.79:385.84:38-0.53:292.89:1211:19New Moon24Fri
25Sat11:573.710:125.85:10-0.54:052.79:1311:18New Moon25Sat
26Sun12:243.85:41-0.54:432.69:1411:18New Moon26Sun
27Mon12:513.96:10-0.35:242.59:1511:17New Moon27Mon
28Tue1:184.06:37-0.16:092.59:1511:16Waxing Crescent28Tue
29Wed1:464.17:030.26:582.49:1611:15Waxing Crescent29Wed
30Thu12:364.62:144.37:280.67:542.39:1711:15Waxing Crescent30Thu
31Fri1:224.12:454.57:531.09:042.19:1811:14Waxing Crescent31Fri
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 6:32 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 79% 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 Waxing Gibbous (79% 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