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 : 11:42 pm (1.5 ft)
Next high tide : in 6h 16m at 4:35 pm (5.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jun 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:264.05:474.310:370.311:432.35:498:12First Quarter1Mon
2Tue4:453.66:304.511:280.75:498:12First Quarter2Tue
3Wed6:023.47:064.712:491.912:141.05:498:13First Quarter3Wed
4Thu7:133.37:374.91:421.412:551.35:488:13Waxing Gibbous4Thu
5Fri8:133.38:065.12:251.01:321.55:488:14Waxing Gibbous5Fri
6Sat9:033.48:345.33:020.52:061.85:488:14Waxing Gibbous6Sat
7Sun9:483.59:015.53:370.22:391.95:488:15Waxing Gibbous7Sun
8Mon10:313.59:305.64:11-0.13:112.15:488:16Full Moon8Mon
9Tue11:143.610:005.74:46-0.43:452.35:488:16Full Moon9Tue
10Wed11:583.610:335.75:23-0.64:212.45:478:16Full Moon10Wed
11Thu12:433.76:01-0.75:022.55:478:17Full Moon11Thu
12Fri1:293.76:41-0.75:482.65:478:17Waning Gibbous12Fri
13Sat2:183.87:22-0.76:422.75:478:18Waning Gibbous13Sat
14Sun12:365.23:093.98:06-0.57:472.75:478:18Waning Gibbous14Sun
15Mon1:294.84:014.28:54-0.39:092.65:488:19Third Quarter15Mon
16Tue2:344.44:504.59:460.010:412.35:488:19Third Quarter16Tue
17Wed3:563.95:364.910:400.45:488:19Third Quarter17Wed
18Thu5:243.76:205.312:001.711:33 AM0.75:488:20Third Quarter18Thu
19Fri6:493.67:045.71:071.012:251.15:488:20Waning Crescent19Fri
20Sat8:043.67:476.12:050.21:161.45:488:20Waning Crescent20Sat
21Sun9:093.88:316.42:56-0.42:061.65:488:20Waning Crescent21Sun
22Mon10:053.99:136.53:44-0.92:561.85:498:20New Moon22Mon
23Tue10:584.09:566.54:30-1.23:442.05:498:21New Moon23Tue
24Wed11:504.110:396.35:16-1.34:332.25:498:21New Moon24Wed
25Thu12:404.16:00-1.25:242.35:498:21New Moon25Thu
26Fri1:284.16:44-1.06:162.45:508:21Waxing Crescent26Fri
27Sat12:085.52:174.17:26-0.67:122.55:508:21Waxing Crescent27Sat
28Sun12:545.03:074.28:08-0.28:142.65:518:21Waxing Crescent28Sun
29Mon1:434.53:584.38:510.29:292.55:518:21First Quarter29Mon
30Tue2:403.94:464.49:360.710:532.35:518:21First Quarter30Tue
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 8:08 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 50% 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 (50% 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