Tides Today & Tomorrow in Port San Luis, CA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Port San Luis, CA.
Next low tide : in 1h 15m at 6:09 pm (2.1 ft)
Next high tide (tomorrow) : 12:05 am (5.9 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9412110
Common Questions About Tides

Port San Luis, CA Tides - Jan 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:005.47:293.41:170.47:115:01Waxing Gibbous1Fri
2Sat6:405.88:213.612:082.01:59-0.37:115:02Waxing Gibbous2Sat
3Sun7:216.29:073.812:582.02:40-0.87:115:03Waxing Gibbous3Sun
4Mon8:036.59:534.01:462.13:22-1.37:115:04Full Moon4Mon
5Tue8:476.610:394.22:352.04:05-1.57:115:05Full Moon5Tue
6Wed9:336.611:254.33:262.04:50-1.57:115:05Full Moon6Wed
7Thu10:226.44:212.05:35-1.47:115:06Waning Gibbous7Thu
8Fri12:134.511:14 AM5.95:202.06:20-1.07:115:07Waning Gibbous8Fri
9Sat1:034.612:105.36:251.97:07-0.57:115:08Waning Gibbous9Sat
10Sun1:554.71:144.57:381.97:570.17:115:09Third Quarter10Sun
11Mon2:514.92:323.89:051.78:520.77:115:10Third Quarter11Mon
12Tue3:485.14:053.410:321.39:511.27:115:11Third Quarter12Tue
13Wed4:425.35:403.211:480.810:511.77:115:12Third Quarter13Wed
14Thu5:345.57:033.312:490.37:105:13Waning Crescent14Thu
15Fri6:215.68:043.51:40-0.17:105:14Waning Crescent15Fri
16Sat7:045.78:513.612:432.12:21-0.47:105:15Waning Crescent16Sat
17Sun7:435.79:293.71:292.22:58-0.67:105:16Waning Crescent17Sun
18Mon8:185.710:043.82:092.33:32-0.67:095:17New Moon18Mon
19Tue8:515.610:363.82:452.34:04-0.67:095:18New Moon19Tue
20Wed9:235.511:073.93:202.24:35-0.57:085:19New Moon20Wed
21Thu9:565.311:383.93:562.25:06-0.47:085:20New Moon21Thu
22Fri10:305.14:352.25:36-0.27:075:21Waxing Crescent22Fri
23Sat12:114.011:05 AM4.75:172.26:050.17:075:22Waxing Crescent23Sat
24Sun12:444.011:43 AM4.36:032.26:350.47:065:23Waxing Crescent24Sun
25Mon1:204.112:273.86:572.27:070.87:065:24Waxing Crescent25Mon
26Tue2:014.21:253.38:082.17:441.27:055:25First Quarter26Tue
27Wed2:464.32:542.99:371.98:301.67:055:26First Quarter27Wed
28Thu3:364.64:422.810:571.49:311.97:045:27First Quarter28Thu
29Fri4:284.96:152.912:000.77:035:28First Quarter29Fri
30Sat5:195.37:213.212:520.17:035:29Waxing Gibbous30Sat
31Sun6:115.78:083.51:38-0.57:025:30Waxing Gibbous31Sun
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 9:07 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 spring phase. Tonight's moon is 8% 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 Waxing Crescent (8% 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