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

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 6:48 pm (0.7 ft)
Next high tide (tomorrow) : in 14h 41m at 12:38 pm (1.0 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:510.58:11-0.16:515:11Waning Gibbous1Fri
2Sat6:140.37:300.06:515:12Third Quarter2Sat
3Sun3:590.55:490.16:515:12Third Quarter3Sun
4Mon3:490.63:180.06:515:13Third Quarter4Mon
5Tue4:080.72:37-0.26:525:14Third Quarter5Tue
6Wed4:400.92:50-0.46:525:15Waning Crescent6Wed
7Thu5:191.03:17-0.56:525:15Waning Crescent7Thu
8Fri6:031.03:50-0.66:525:16Waning Crescent8Fri
9Sat6:471.14:25-0.76:525:17Waning Crescent9Sat
10Sun7:301.15:01-0.76:525:18Waning Crescent10Sun
11Mon8:111.15:35-0.76:525:19New Moon11Mon
12Tue8:511.16:07-0.76:525:19New Moon12Tue
13Wed9:291.06:36-0.76:525:20New Moon13Wed
14Thu10:070.87:01-0.66:525:21Waxing Crescent14Thu
15Fri10:450.67:18-0.46:525:22Waxing Crescent15Fri
16Sat11:170.47:19-0.26:525:23Waxing Crescent16Sat
17Sun3:000.26:42-0.16:515:23Waxing Crescent17Sun
18Mon2:320.54:150.06:515:24First Quarter18Mon
19Tue2:500.712:58-0.36:515:25First Quarter19Tue
20Wed3:310.91:31-0.56:515:26First Quarter20Wed
21Thu4:241.02:17-0.86:515:27Waxing Gibbous21Thu
22Fri5:231.13:06-0.96:505:28Waxing Gibbous22Fri
23Sat6:241.23:56-1.06:505:28Waxing Gibbous23Sat
24Sun7:231.24:44-1.06:505:29Waxing Gibbous24Sun
25Mon8:171.15:28-0.96:495:30Full Moon25Mon
26Tue9:060.96:07-0.86:495:31Full Moon26Tue
27Wed9:490.76:37-0.66:485:32Full Moon27Wed
28Thu10:270.56:50-0.46:485:33Waning Gibbous28Thu
29Fri10:590.36:38-0.26:475:34Waning Gibbous29Fri
30Sat1:320.25:53-0.16:370.16:475:34Waning Gibbous30Sat
31Sun1:150.34:230.06:465:35Waning Gibbous31Sun
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 3:43 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 Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a spring phase. Tonight's moon is 5% 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 Waxing Crescent (5% 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