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 4h 54m at 11:42 pm (1.5 ft)
Next high tide (tomorrow) : 5:10 am (3.0 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 - Mar 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:245.88:434.41:181.62:21-1.09:389:05Waning Crescent1Mon
2Tue8:155.89:174.72:111.13:00-0.99:369:06New Moon2Tue
3Wed9:045.69:515.03:010.73:37-0.79:359:07New Moon3Wed
4Thu9:535.310:275.23:500.44:13-0.29:349:08New Moon4Thu
5Fri10:424.811:035.34:400.24:480.39:329:09New Moon5Fri
6Sat11:334.311:395.25:300.25:230.89:319:10Waxing Crescent6Sat
7Sun12:293.76:220.35:571.49:309:11Waxing Crescent7Sun
8Mon12:185.01:353.27:200.46:321.99:289:11Waxing Crescent8Mon
9Tue1:014.83:072.98:290.67:142.39:279:12First Quarter9Tue
10Wed1:544.54:592.99:510.68:252.79:269:13First Quarter10Wed
11Thu3:044.36:263.111:060.510:142.79:249:14First Quarter11Thu
12Fri4:204.37:113.312:070.49:239:15First Quarter12Fri
13Sat5:264.37:393.512:530.29:219:16Waxing Gibbous13Sat
14Sun7:214.59:023.712:302.32:290.110:2010:16Waxing Gibbous14Sun
15Mon8:074.69:233.92:131.92:590.110:1910:17Waxing Gibbous15Mon
16Tue8:464.79:454.22:501.63:260.110:1710:18Waxing Gibbous16Tue
17Wed9:244.710:074.43:261.23:510.210:1610:19Full Moon17Wed
18Thu10:014.710:304.74:020.94:170.410:1410:20Full Moon18Thu
19Fri10:404.510:564.94:400.64:440.610:1310:21Full Moon19Fri
20Sat11:234.311:245.15:200.35:110.910:1210:21Full Moon20Sat
21Sun12:104.06:040.15:411.310:1010:22Waning Gibbous21Sun
22Mon1:033.66:520.06:131.610:0910:23Waning Gibbous22Mon
23Tue12:345.22:083.37:470.06:492.010:0710:24Waning Gibbous23Tue
24Wed1:185.23:333.08:520.07:362.310:0610:25Waning Gibbous24Wed
25Thu2:155.05:113.110:08-0.18:532.610:0510:25Third Quarter25Thu
26Fri3:294.96:273.311:23-0.210:462.610:0310:26Third Quarter26Fri
27Sat4:544.87:203.712:27-0.310:0210:27Third Quarter27Sat
28Sun6:124.88:004.112:172.21:21-0.410:0010:28Waning Crescent28Sun
29Mon7:204.98:354.51:261.72:08-0.49:5910:29Waning Crescent29Mon
30Tue8:205.09:084.92:221.12:49-0.39:5810:29Waning Crescent30Tue
31Wed9:134.99:405.23:120.53:260.09:5610:30Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9412110)

Common Questions About Port San Luis, CA Tides

Show All
What time does the tide turn (slack tide) in Port San Luis, CA today?

Slack tide in Port San Luis, CA is approximately 2:26 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