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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 8h 05m at 7:03 pm (-0.8 ft)
Next high tide (tomorrow) : 9:29 am (2.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:140.61:02-0.26:465:36First Quarter1Mon
2Tue3:480.81:35-0.56:455:37First Quarter2Tue
3Wed4:381.02:21-0.76:455:38Waxing Gibbous3Wed
4Thu5:361.13:11-0.96:445:38Waxing Gibbous4Thu
5Fri6:371.24:02-1.06:435:39Waxing Gibbous5Fri
6Sat7:381.24:53-1.06:435:40Full Moon6Sat
7Sun8:351.15:43-0.96:425:41Full Moon7Sun
8Mon9:281.06:29-0.86:415:42Full Moon8Mon
9Tue10:160.87:08-0.66:415:42Full Moon9Tue
10Wed11:000.67:33-0.46:405:43Waning Gibbous10Wed
11Thu11:400.37:29-0.16:395:44Waning Gibbous11Thu
12Fri1:510.26:350.07:150.16:385:45Waning Gibbous12Fri
13Sat12:080.11:300.44:180.16:375:46Waning Gibbous13Sat
14Sun1:480.512:30-0.16:375:46Third Quarter14Sun
15Mon2:220.712:57-0.36:365:47Third Quarter15Mon
16Tue3:060.81:34-0.46:355:48Third Quarter16Tue
17Wed4:000.92:13-0.56:345:48Third Quarter17Wed
18Thu4:590.92:53-0.66:335:49Waning Crescent18Thu
19Fri5:581.03:34-0.66:325:50Waning Crescent19Fri
20Sat6:531.04:13-0.66:315:51Waning Crescent20Sat
21Sun7:441.04:50-0.66:305:51Waning Crescent21Sun
22Mon8:311.05:23-0.56:295:52New Moon22Mon
23Tue9:180.95:52-0.46:285:53New Moon23Tue
24Wed10:060.86:15-0.36:275:53New Moon24Wed
25Thu11:000.66:28-0.16:265:54Waxing Crescent25Thu
26Fri12:540.26:200.04:250.16:255:55Waxing Crescent26Fri
27Sat12:160.412:180.45:250.27:330.06:245:56Waxing Crescent27Sat
28Sun12:270.610:16-0.26:235:56Waxing Crescent28Sun
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 2:16 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 1% 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 (1% 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