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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 9:21 pm (-0.2 ft)
Next high tide (tomorrow) : in 14h 30m at 11:16 am (1.6 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:080.42:52-0.16:455:36Third Quarter1Sat
2Sun2:380.51:40-0.26:455:37Third Quarter2Sun
3Mon3:190.61:53-0.46:445:38Third Quarter3Mon
4Tue4:090.72:22-0.56:435:39Third Quarter4Tue
5Wed5:020.82:56-0.56:435:40Waning Crescent5Wed
6Thu5:550.83:31-0.66:425:40Waning Crescent6Thu
7Fri6:460.94:05-0.66:415:41Waning Crescent7Fri
8Sat7:330.94:37-0.66:415:42Waning Crescent8Sat
9Sun8:190.85:07-0.66:405:43New Moon9Sun
10Mon9:040.85:32-0.56:395:44New Moon10Mon
11Tue9:500.75:53-0.46:385:44New Moon11Tue
12Wed10:410.56:06-0.26:385:45New Moon12Wed
13Thu1:080.16:02-0.14:090.16:375:46Waxing Crescent13Thu
14Fri12:370.35:260.17:160.06:365:47Waxing Crescent14Fri
15Sat12:460.510:23-0.26:355:47Waxing Crescent15Sat
16Sun1:170.76:345:48First Quarter16Sun
17Mon2:050.812:00-0.46:335:49First Quarter17Mon
18Tue3:040.91:04-0.56:325:50First Quarter18Tue
19Wed4:121.01:59-0.76:315:50First Quarter19Wed
20Thu5:241.02:51-0.76:315:51Waxing Gibbous20Thu
21Fri6:341.03:39-0.76:305:52Waxing Gibbous21Fri
22Sat7:380.94:22-0.66:295:52Waxing Gibbous22Sat
23Sun8:380.84:58-0.46:285:53Full Moon23Sun
24Mon9:330.75:23-0.26:275:54Full Moon24Mon
25Tue10:260.55:30-0.16:265:54Full Moon25Tue
26Wed11:390.311:240.45:130.13:590.16:255:55Full Moon26Wed
27Thu11:200.44:250.25:500.16:245:56Waning Gibbous27Thu
28Fri11:280.57:420.06:235:56Waning Gibbous28Fri
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 4:18 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 2% 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 New Moon (2% 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