Tides Today & Tomorrow in Southwest Pass, Mississippi River, LA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 7h 17m at 6:08 pm (-0.8 ft)
Next high tide (tomorrow) : 8:31 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:210.46:18-0.36:455:36Waning Gibbous1Tue
2Wed10:550.36:00-0.16:455:37Waning Gibbous2Wed
3Thu1:010.25:200.07:020.06:445:38Waning Gibbous3Thu
4Fri1:010.43:580.011:49-0.16:445:39Waning Gibbous4Fri
5Sat1:230.66:435:39Third Quarter5Sat
6Sun2:020.812:18-0.46:425:40Third Quarter6Sun
7Mon2:540.91:03-0.66:425:41Third Quarter7Mon
8Tue3:561.11:51-0.86:415:42Third Quarter8Tue
9Wed5:041.12:42-0.96:405:43Waning Crescent9Wed
10Thu6:141.23:33-1.06:395:43Waning Crescent10Thu
11Fri7:221.14:23-0.96:395:44Waning Crescent11Fri
12Sat8:291.05:10-0.86:385:45New Moon12Sat
13Sun9:350.85:53-0.66:375:46New Moon13Sun
14Mon10:450.66:23-0.36:365:46New Moon14Mon
15Tue12:120.16:210.03:520.06:355:47Waxing Crescent15Tue
16Wed12:130.311:25 AM0.35:020.26:47-0.16:345:48Waxing Crescent16Wed
17Thu11:400.69:28-0.26:345:49Waxing Crescent17Thu
18Fri12:160.811:18-0.46:335:49Waxing Crescent18Fri
19Sat1:010.96:325:50First Quarter19Sat
20Sun1:530.912:29-0.56:315:51First Quarter20Sun
21Mon2:521.01:25-0.66:305:52First Quarter21Mon
22Tue3:580.92:14-0.66:295:52First Quarter22Tue
23Wed5:070.92:57-0.66:285:53Waxing Gibbous23Wed
24Thu6:120.93:37-0.56:275:54Waxing Gibbous24Thu
25Fri7:090.94:11-0.46:265:54Waxing Gibbous25Fri
26Sat8:010.84:40-0.36:255:55Waxing Gibbous26Sat
27Sun8:500.74:59-0.26:245:56Full Moon27Sun
28Mon9:390.65:04-0.16:235:56Full Moon28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 1:19 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 Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a spring phase. Tonight's moon is 4% 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 Southwest Pass, Mississippi River, LA 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 Southwest Pass, Mississippi River, LA?

Tide predictions for Southwest Pass, Mississippi River, LA 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 Southwest Pass, Mississippi River, LA?

Tide data for Southwest Pass, Mississippi River, LA is sourced from NOAA Station #8760959. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8760959.

What is the moon phase in Southwest Pass, Mississippi River, LA tonight?

Tonight the moon over Southwest Pass, Mississippi River, LA is Waning Crescent (4% illuminated). This places Southwest Pass, Mississippi River, LA 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