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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 9h 08m at 4:13 pm (0.3 ft)
Next high tide (tomorrow) : 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:110.63:240.06:515:11First Quarter1Sun
2Mon4:290.82:49-0.26:515:11First Quarter2Mon
3Tue5:000.93:02-0.46:515:12Waxing Gibbous3Tue
4Wed5:381.03:29-0.56:515:13Waxing Gibbous4Wed
5Thu6:191.14:01-0.66:515:14Waxing Gibbous5Thu
6Fri7:021.14:35-0.76:525:14Waxing Gibbous6Fri
7Sat7:431.15:10-0.76:525:15Full Moon7Sat
8Sun8:241.15:44-0.76:525:16Full Moon8Sun
9Mon9:031.16:17-0.76:525:17Full Moon9Mon
10Tue9:421.06:47-0.66:525:17Full Moon10Tue
11Wed10:210.87:13-0.56:525:18Waning Gibbous11Wed
12Thu10:570.67:31-0.46:525:19Waning Gibbous12Thu
13Fri11:180.37:29-0.26:525:20Waning Gibbous13Fri
14Sat3:160.36:420.06:525:21Third Quarter14Sat
15Sun2:570.53:070.06:525:21Third Quarter15Sun
16Mon3:180.71:20-0.36:515:22Third Quarter16Mon
17Tue4:010.91:55-0.66:515:23Third Quarter17Tue
18Wed4:541.12:40-0.86:515:24Waning Crescent18Wed
19Thu5:511.13:28-0.96:515:25Waning Crescent19Thu
20Fri6:481.24:16-1.06:515:26Waning Crescent20Fri
21Sat7:431.15:02-0.96:505:26New Moon21Sat
22Sun8:331.05:44-0.86:505:27New Moon22Sun
23Mon9:170.96:19-0.76:505:28New Moon23Mon
24Tue9:570.76:45-0.56:495:29New Moon24Tue
25Wed10:300.56:54-0.36:495:30Waxing Crescent25Wed
26Thu10:540.36:40-0.26:495:31Waxing Crescent26Thu
27Fri1:590.25:57-0.17:210.16:485:32Waxing Crescent27Fri
28Sat1:400.34:330.06:485:32Waxing Crescent28Sat
29Sun1:550.52:13-0.16:475:33First Quarter29Sun
30Mon2:260.61:26-0.36:475:34First Quarter30Mon
31Tue3:090.71:46-0.46:465:35First Quarter31Tue
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 11:02 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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