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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 7h 52m at 2:24 pm (-0.2 ft)
Next high tide (tomorrow) : 4:18 am (1.7 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:21 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:061.86:360.26:367:18Full Moon1Sat
2Sun10:001.77:040.46:367:17Full Moon2Sun
3Mon10:591.57:170.76:377:16Full Moon3Mon
4Tue12:131.36:510.96:377:14Waning Gibbous4Tue
5Wed12:311.06:140.86:387:13Waning Gibbous5Wed
6Thu12:161.39:000.66:387:12Waning Gibbous6Thu
7Fri12:411.611:080.46:397:11Waning Gibbous7Fri
8Sat1:251.812:340.26:397:10Third Quarter8Sat
9Sun2:222.01:450.06:407:08Third Quarter9Sun
10Mon3:282.02:470.06:407:07Third Quarter10Mon
11Tue4:442.13:450.06:417:06Waning Crescent11Tue
12Wed6:032.04:380.16:417:05Waning Crescent12Wed
13Thu7:201.95:230.26:427:04Waning Crescent13Thu
14Fri8:281.86:000.46:427:02Waning Crescent14Fri
15Sat9:301.76:210.76:437:01New Moon15Sat
16Sun10:301.56:170.96:437:00New Moon16Sun
17Mon12:451.011:261.22:551.05:331.06:446:59New Moon17Mon
18Tue1:181.25:210.93:461.16:446:58Waxing Crescent18Tue
19Wed11:261.57:030.86:456:56Waxing Crescent19Wed
20Thu11:491.78:360.76:456:55Waxing Crescent20Thu
21Fri10:010.66:466:54Waxing Crescent21Fri
22Sat12:211.811:180.56:466:53First Quarter22Sat
23Sun1:031.812:260.46:476:51First Quarter23Sun
24Mon1:551.91:270.46:476:50First Quarter24Mon
25Tue2:581.92:210.36:486:49First Quarter25Tue
26Wed4:121.93:100.36:486:48First Quarter26Wed
27Thu5:311.93:530.46:496:47Waxing Gibbous27Thu
28Fri6:481.94:310.56:496:45Waxing Gibbous28Fri
29Sat8:021.85:040.66:506:44Waxing Gibbous29Sat
30Sun9:191.75:260.86:506:43Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 9:21 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 43% 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 Third Quarter (43% 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