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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 8h 03m at 9:22 pm (0.1 ft)
Next high tide (tomorrow) : 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:181.03:55-0.56:515:11Waxing Gibbous1Mon
2Tue6:521.04:25-0.56:515:11Waxing Gibbous2Tue
3Wed7:271.04:55-0.66:515:12Waxing Gibbous3Wed
4Thu8:011.05:26-0.66:515:13Full Moon4Thu
5Fri8:351.05:56-0.66:515:14Full Moon5Fri
6Sat9:071.06:24-0.56:525:14Full Moon6Sat
7Sun9:380.96:50-0.56:525:15Full Moon7Sun
8Mon10:060.87:12-0.46:525:16Waning Gibbous8Mon
9Tue10:320.77:28-0.36:525:17Waning Gibbous9Tue
10Wed10:480.57:34-0.26:525:17Waning Gibbous10Wed
11Thu10:020.37:26-0.16:525:18Waning Gibbous11Thu
12Fri4:250.36:510.06:525:19Third Quarter12Fri
13Sat4:060.54:520.06:525:20Third Quarter13Sat
14Sun4:210.72:17-0.26:525:21Third Quarter14Sun
15Mon4:540.82:24-0.46:525:21Waning Crescent15Mon
16Tue5:381.02:59-0.76:525:22Waning Crescent16Tue
17Wed6:291.13:42-0.86:515:23Waning Crescent17Wed
18Thu7:221.24:29-0.96:515:24Waning Crescent18Thu
19Fri8:161.25:17-0.96:515:25New Moon19Fri
20Sat9:091.16:05-0.96:515:26New Moon20Sat
21Sun9:590.96:49-0.76:505:26New Moon21Sun
22Mon10:460.77:26-0.56:505:27Waxing Crescent22Mon
23Tue11:230.47:44-0.36:505:28Waxing Crescent23Tue
24Wed11:120.27:23-0.16:505:29Waxing Crescent24Wed
25Thu2:460.35:450.06:495:30First Quarter25Thu
26Fri2:520.52:16-0.16:495:31First Quarter26Fri
27Sat3:230.61:53-0.36:485:31First Quarter27Sat
28Sun4:060.72:20-0.56:485:32First Quarter28Sun
29Mon4:530.82:53-0.66:475:33Waxing Gibbous29Mon
30Tue5:420.83:27-0.66:475:34Waxing Gibbous30Tue
31Wed6:290.84:00-0.66:465:35Waxing Gibbous31Wed
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 4:42 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 80% 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 Gibbous (80% 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