Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide (tomorrow) : in 4h 42m at 12:51 am (0.7 ft)
Next high tide (tomorrow) : 6:59 am (2.9 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:104.211:54 AM4.56:212.46:550.310:178:08Waning Gibbous1Sun
2Mon1:534.212:404.07:222.57:300.810:188:09Waning Gibbous2Mon
3Tue2:384.31:393.48:402.48:081.210:188:10Third Quarter3Tue
4Wed3:254.43:043.010:082.18:521.610:188:11Third Quarter4Wed
5Thu4:104.64:452.811:221.79:431.910:188:12Third Quarter5Thu
6Fri4:534.86:172.912:201.110:188:12Third Quarter6Fri
7Sat5:345.17:243.11:050.610:188:13Waning Crescent7Sat
8Sun6:145.38:113.31:430.110:188:14Waning Crescent8Sun
9Mon6:545.68:493.512:222.42:19-0.310:188:15Waning Crescent9Mon
10Tue7:325.99:253.71:102.32:54-0.710:188:16Waning Crescent10Tue
11Wed8:116.110:013.91:552.23:31-1.010:188:17New Moon11Wed
12Thu8:526.210:384.12:402.14:08-1.210:178:18New Moon12Thu
13Fri9:346.211:174.33:282.04:46-1.210:178:19New Moon13Fri
14Sat10:205.911:574.54:191.95:25-1.010:178:20Waxing Crescent14Sat
15Sun11:095.55:151.86:05-0.610:178:21Waxing Crescent15Sun
16Mon12:404.712:034.96:171.76:46-0.210:178:22Waxing Crescent16Mon
17Tue1:264.81:064.27:271.67:310.410:168:23Waxing Crescent17Tue
18Wed2:185.02:273.68:521.48:221.010:168:24First Quarter18Wed
19Thu3:155.24:073.210:211.09:231.510:158:25First Quarter19Thu
20Fri4:135.45:473.111:380.410:311.910:158:26First Quarter20Fri
21Sat5:115.67:093.312:42-0.110:158:27Waxing Gibbous21Sat
22Sun6:075.88:063.61:34-0.510:148:28Waxing Gibbous22Sun
23Mon6:585.98:513.812:402.12:19-0.810:148:29Waxing Gibbous23Mon
24Tue7:435.99:293.91:342.12:59-0.910:138:30Waxing Gibbous24Tue
25Wed8:255.910:044.02:202.03:35-0.910:138:31Full Moon25Wed
26Thu9:035.710:374.13:031.94:09-0.810:128:32Full Moon26Thu
27Fri9:405.511:094.23:431.94:41-0.510:118:33Full Moon27Fri
28Sat10:165.211:414.24:241.85:11-0.210:118:34Full Moon28Sat
29Sun10:534.85:061.85:400.110:108:35Waning Gibbous29Sun
30Mon12:124.211:32 AM4.35:501.86:070.510:098:36Waning Gibbous30Mon
31Tue12:454.312:143.86:391.86:340.910:098:37Waning Gibbous31Tue
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 3:55 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 neap phase. Tonight's moon is 41% 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 minimum.

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 (41% illuminated). This places Port San Luis, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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