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 1h 34m at 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 - Dec 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:575.57:053.51:040.610:007:57Waning Crescent1Tue
2Wed6:336.08:043.71:48-0.110:017:57Waning Crescent2Wed
3Thu7:116.48:583.812:412.12:32-0.810:027:57Waning Crescent3Thu
4Fri7:526.79:493.91:272.33:17-1.310:037:57New Moon4Fri
5Sat8:356.910:414.02:152.44:03-1.510:037:57New Moon5Sat
6Sun9:226.911:334.13:052.44:51-1.610:047:57New Moon6Sun
7Mon10:116.74:002.55:40-1.510:057:57Waxing Crescent7Mon
8Tue12:254.211:04 AM6.25:012.56:28-1.210:067:57Waxing Crescent8Tue
9Wed1:184.312:015.66:092.57:18-0.710:077:58Waxing Crescent9Wed
10Thu2:124.51:054.97:282.58:09-0.110:077:58First Quarter10Thu
11Fri3:074.82:234.29:012.29:020.510:087:58First Quarter11Fri
12Sat3:595.03:543.610:311.89:551.110:097:58First Quarter12Sat
13Sun4:465.35:273.411:461.210:471.610:097:58First Quarter13Sun
14Mon5:315.56:533.412:470.610:107:59Waxing Gibbous14Mon
15Tue6:115.78:003.51:360.110:117:59Waxing Gibbous15Tue
16Wed6:495.88:523.612:232.32:17-0.210:117:59Waxing Gibbous16Wed
17Thu7:245.99:353.71:062.62:54-0.510:128:00Waxing Gibbous17Thu
18Fri7:585.910:133.71:452.73:29-0.610:128:00Full Moon18Fri
19Sat8:305.910:493.72:202.74:02-0.610:138:01Full Moon19Sat
20Sun9:025.811:243.72:562.74:34-0.610:148:01Full Moon20Sun
21Mon9:355.711:583.83:322.75:07-0.510:148:02Full Moon21Mon
22Tue10:095.54:122.85:38-0.410:148:02Waning Gibbous22Tue
23Wed12:323.810:45 AM5.24:562.86:10-0.210:158:03Waning Gibbous23Wed
24Thu1:083.911:23 AM4.85:462.86:410.110:158:03Waning Gibbous24Thu
25Fri1:454.012:064.36:442.77:130.510:168:04Waning Gibbous25Fri
26Sat2:244.21:003.87:592.67:470.910:168:05Third Quarter26Sat
27Sun3:044.52:183.29:292.38:271.310:168:05Third Quarter27Sun
28Mon3:444.84:032.910:491.79:151.710:178:06Third Quarter28Mon
29Tue4:265.25:452.911:530.910:102.110:178:07Third Quarter29Tue
30Wed5:115.67:093.112:470.210:178:07Waning Crescent30Wed
31Thu5:586.08:043.41:35-0.610:178:08Waning Crescent31Thu
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 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