Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 5h 48m at 8:20 am (0.3 ft)
Next high tide : 3:21 pm (4.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:54 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:185.92:483.97:48-1.27:172.75:498:12Waning Gibbous1Thu
2Fri1:105.33:534.08:42-0.88:322.85:498:13Waning Gibbous2Fri
3Sat2:094.84:544.19:39-0.410:062.75:488:13Third Quarter3Sat
4Sun3:194.25:454.310:350.011:352.45:488:14Third Quarter4Sun
5Mon4:403.86:294.511:280.45:488:15Third Quarter5Mon
6Tue5:583.57:054.712:462.012:140.85:488:15Third Quarter6Tue
7Wed7:113.47:364.91:421.512:561.25:488:16Waning Crescent7Wed
8Thu8:143.48:045.12:271.01:321.55:488:16Waning Crescent8Thu
9Fri9:073.48:315.33:050.62:051.85:488:17Waning Crescent9Fri
10Sat9:543.48:575.53:390.22:372.05:488:17Waning Crescent10Sat
11Sun10:383.59:255.64:13-0.13:082.25:488:17New Moon11Sun
12Mon11:223.59:545.74:47-0.43:402.45:488:18New Moon12Mon
13Tue12:073.55:23-0.54:142.65:488:18New Moon13Tue
14Wed12:523.66:00-0.64:522.75:488:19New Moon14Wed
15Thu1:383.66:38-0.75:352.85:488:19Waxing Crescent15Thu
16Fri2:263.67:18-0.66:252.95:488:19Waxing Crescent16Fri
17Sat12:205.33:173.88:00-0.57:263.05:488:20Waxing Crescent17Sat
18Sun1:094.94:064.08:46-0.38:442.95:488:20Waxing Crescent18Sun
19Mon2:084.54:504.39:340.010:162.65:488:20First Quarter19Mon
20Tue3:244.15:314.610:250.311:392.05:498:20First Quarter20Tue
21Wed4:523.76:115.111:150.75:498:21First Quarter21Wed
22Thu6:193.56:515.612:481.312:051.05:498:21Waxing Gibbous22Thu
23Fri7:403.57:326.01:480.512:541.45:498:21Waxing Gibbous23Fri
24Sat8:503.78:156.42:41-0.31:441.75:508:21Waxing Gibbous24Sat
25Sun9:513.88:586.63:30-0.92:341.95:508:21Full Moon25Sun
26Mon10:473.99:426.74:18-1.33:232.15:508:21Full Moon26Mon
27Tue11:414.010:276.65:05-1.54:142.35:518:21Full Moon27Tue
28Wed12:334.05:52-1.55:062.45:518:21Full Moon28Wed
29Thu1:234.16:38-1.36:022.55:518:21Waning Gibbous29Thu
30Fri12:015.92:134.17:23-1.07:002.65:528:21Waning Gibbous30Fri
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 11:50 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 71% 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 Waning Gibbous (71% 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