Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 4h 07m at 5:05 am (-1.7 ft)
Next high tide : 11:46 am (4.0 ft)
Sunset today : 11:24 pm
Sunrise tomorrow : 9:06 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Sep 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:194.59:366.63:54-1.03:271.89:4210:36Full Moon1Sun
2Mon10:544.810:266.44:34-0.94:191.49:4310:35Full Moon2Mon
3Tue11:305.111:176.05:14-0.65:121.29:4410:33Full Moon3Tue
4Wed12:085.35:52-0.16:071.09:4510:32Waning Gibbous4Wed
5Thu12:105.412:465.46:300.57:040.99:4510:30Waning Gibbous5Thu
6Fri1:074.71:265.47:071.28:050.99:4610:29Waning Gibbous6Fri
7Sat2:134.12:095.37:451.89:161.09:4710:28Waning Gibbous7Sat
8Sun3:403.63:005.18:292.510:390.99:4810:26Third Quarter8Sun
9Mon5:313.54:024.99:343.011:570.89:4810:25Third Quarter9Mon
10Tue7:163.65:124.911:093.29:4910:23Third Quarter10Tue
11Wed8:183.96:194.91:030.612:313.29:5010:22Third Quarter11Wed
12Thu8:544.07:165.11:550.41:313.09:5010:20Waning Crescent12Thu
13Fri9:214.28:025.22:360.32:132.79:5110:19Waning Crescent13Fri
14Sat9:444.28:425.33:100.22:482.49:5210:17Waning Crescent14Sat
15Sun10:054.39:185.43:400.23:212.19:5310:16Waning Crescent15Sun
16Mon10:274.59:525.34:060.33:541.99:5310:15New Moon16Mon
17Tue10:494.610:275.24:320.44:291.69:5410:13New Moon17Tue
18Wed11:114.811:045.04:570.75:061.49:5510:12New Moon18Wed
19Thu11:354.911:464.75:221.05:461.29:5610:10New Moon19Thu
20Fri12:015.15:471.36:311.19:5610:09Waxing Crescent20Fri
21Sat12:334.312:305.26:121.87:211.09:5710:07Waxing Crescent21Sat
22Sun1:293.91:035.26:392.28:200.99:5810:06Waxing Crescent22Sun
23Mon2:463.51:465.27:102.79:360.89:5910:04First Quarter23Mon
24Tue4:393.42:465.27:523.110:580.59:5910:03First Quarter24Tue
25Wed6:283.54:065.29:283.310:0010:02First Quarter25Wed
26Thu7:303.85:285.412:090.211:25 AM3.310:0110:00First Quarter26Thu
27Fri8:084.26:405.61:09-0.212:442.910:029:59Waxing Gibbous27Fri
28Sat8:404.57:435.81:59-0.41:462.310:029:57Waxing Gibbous28Sat
29Sun9:104.88:395.92:42-0.52:391.710:039:56Waxing Gibbous29Sun
30Mon9:415.29:305.93:22-0.43:281.210:049:54Full Moon30Mon
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 8:25 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 0% 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 New Moon (0% 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