Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 2h 53m at 9:30 am (1.3 ft)
Next high tide : 4:35 pm (5.0 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 - Jan 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:526.63:382.65:28-1.710:188:08New Moon1Sun
2Mon12:163.910:43 AM6.34:372.66:11-1.410:188:09Waxing Crescent2Mon
3Tue1:004.111:37 AM5.75:422.56:54-0.910:188:10Waxing Crescent3Tue
4Wed1:454.412:365.06:552.37:38-0.310:188:11Waxing Crescent4Wed
5Thu2:324.71:474.18:222.18:230.410:188:12First Quarter5Thu
6Fri3:205.03:193.49:561.69:111.110:188:13First Quarter6Fri
7Sat4:085.35:053.011:200.910:031.710:188:13First Quarter7Sat
8Sun4:555.66:523.112:300.310:188:14Waxing Gibbous8Sun
9Mon5:435.88:103.31:26-0.310:188:15Waxing Gibbous9Mon
10Tue6:295.99:053.52:13-0.710:188:16Waxing Gibbous10Tue
11Wed7:136.09:483.612:532.82:54-0.910:188:17Waxing Gibbous11Wed
12Thu7:546.010:253.71:422.83:32-1.010:188:18Full Moon12Thu
13Fri8:325.910:573.72:252.84:07-1.010:178:19Full Moon13Fri
14Sat9:095.811:283.73:042.74:41-0.810:178:20Full Moon14Sat
15Sun9:445.611:573.73:432.65:12-0.710:178:21Full Moon15Sun
16Mon10:195.44:232.55:41-0.410:178:22Waning Gibbous16Mon
17Tue12:273.810:55 AM5.05:062.56:08-0.110:168:23Waning Gibbous17Tue
18Wed12:563.911:31 AM4.55:532.46:340.310:168:24Waning Gibbous18Wed
19Thu1:274.012:124.06:482.46:590.710:168:25Waning Gibbous19Thu
20Fri1:594.11:033.47:582.27:231.210:158:26Third Quarter20Fri
21Sat2:354.32:242.89:272.07:491.710:158:27Third Quarter21Sat
22Sun3:144.64:302.510:521.48:212.210:148:28Third Quarter22Sun
23Mon3:594.86:512.711:590.89:192.610:148:29Third Quarter23Mon
24Tue4:475.28:043.012:520.110:138:30Waning Crescent24Tue
25Wed5:395.58:413.21:37-0.510:138:31Waning Crescent25Wed
26Thu6:325.99:133.42:19-1.110:128:32Waning Crescent26Thu
27Fri7:236.39:453.612:582.73:00-1.510:118:33Waning Crescent27Fri
28Sat8:126.610:193.81:542.43:41-1.810:118:34New Moon28Sat
29Sun9:006.610:544.12:472.24:21-1.810:108:35New Moon29Sun
30Mon9:496.411:304.33:411.95:01-1.610:098:36New Moon30Mon
31Tue10:396.04:391.65:39-1.110:098:37Waxing Crescent31Tue
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 1:02 pm — 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