Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Port San Luis, CA.
Next low tide : 9:30 am (1.3 ft)
Next high tide : in 1h 42m at 3:26 am (3.3 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 9:02 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Dec 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:165.910:333.72:022.73:47-0.49:597:57Full Moon1Sun
2Mon8:455.911:143.72:332.84:21-0.410:007:57Full Moon2Mon
3Tue9:175.811:563.73:062.94:57-0.510:017:57Full Moon3Tue
4Wed9:515.73:423.05:33-0.410:027:57Waning Gibbous4Wed
5Thu12:383.710:27 AM5.54:243.16:11-0.310:037:57Waning Gibbous5Thu
6Fri1:233.711:06 AM5.25:133.16:49-0.110:047:57Waning Gibbous6Fri
7Sat2:093.811:52 AM4.86:143.27:280.110:047:57Waning Gibbous7Sat
8Sun2:524.012:474.47:323.18:110.410:057:57Third Quarter8Sun
9Mon3:324.32:033.99:082.78:560.810:067:57Third Quarter9Mon
10Tue4:084.73:383.510:332.19:441.210:077:58Third Quarter10Tue
11Wed4:455.25:133.311:401.310:321.610:077:58Third Quarter11Wed
12Thu5:235.76:393.412:380.410:087:58Waning Crescent12Thu
13Fri6:056.27:493.51:29-0.410:097:58Waning Crescent13Fri
14Sat6:496.68:483.712:142.22:17-1.010:107:59Waning Crescent14Sat
15Sun7:356.99:403.91:072.33:04-1.510:107:59New Moon15Sun
16Mon8:217.010:314.01:592.43:51-1.710:117:59New Moon16Mon
17Tue9:097.011:204.12:522.44:39-1.710:118:00New Moon17Tue
18Wed9:576.73:472.55:25-1.510:128:00Waxing Crescent18Wed
19Thu12:094.210:48 AM6.24:462.56:10-1.210:138:00Waxing Crescent19Thu
20Fri12:574.311:40 AM5.65:482.56:54-0.710:138:01Waxing Crescent20Fri
21Sat1:464.412:354.86:572.57:38-0.110:148:01Waxing Crescent21Sat
22Sun2:364.51:394.18:192.48:240.610:148:02First Quarter22Sun
23Mon3:254.73:023.49:522.19:101.210:158:02First Quarter23Mon
24Tue4:114.94:403.111:141.69:581.710:158:03First Quarter24Tue
25Wed4:535.06:193.012:191.110:158:03First Quarter25Wed
26Thu5:335.27:393.11:100.610:168:04Waxing Gibbous26Thu
27Fri6:115.48:333.31:510.110:168:05Waxing Gibbous27Fri
28Sat6:485.59:143.412:202.72:27-0.210:168:05Waxing Gibbous28Sat
29Sun7:235.79:493.51:032.83:00-0.410:178:06Waxing Gibbous29Sun
30Mon7:575.810:213.61:432.83:32-0.610:178:07Full Moon30Mon
31Tue8:315.810:473.72:202.74:04-0.710:178:07Full Moon31Tue
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 6:28 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 52% 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 (52% 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