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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:57 pm (0.3 ft)
Next high tide : in 10h 32m at 11:19 am (1.2 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:241.15:51-0.66:515:11Full Moon1Sun
2Mon8:571.16:22-0.66:515:12Full Moon2Mon
3Tue9:291.06:53-0.56:515:13Full Moon3Tue
4Wed10:000.97:23-0.56:515:13Waning Gibbous4Wed
5Thu10:280.87:49-0.46:525:14Waning Gibbous5Thu
6Fri10:520.78:09-0.36:525:15Waning Gibbous6Fri
7Sat11:020.58:19-0.26:525:15Waning Gibbous7Sat
8Sun9:100.38:12-0.16:525:16Third Quarter8Sun
9Mon5:240.47:320.06:525:17Third Quarter9Mon
10Tue4:540.54:480.06:525:18Third Quarter10Tue
11Wed5:030.72:34-0.26:525:19Third Quarter11Wed
12Thu5:310.92:48-0.46:525:19Waning Crescent12Thu
13Fri6:111.03:24-0.76:525:20Waning Crescent13Fri
14Sat6:571.24:07-0.86:525:21Waning Crescent14Sat
15Sun7:481.24:55-0.96:525:22New Moon15Sun
16Mon8:391.25:45-1.06:525:23New Moon16Mon
17Tue9:311.16:35-0.96:515:24New Moon17Tue
18Wed10:201.07:24-0.86:515:24Waxing Crescent18Wed
19Thu11:050.78:05-0.66:515:25Waxing Crescent19Thu
20Fri11:380.48:31-0.36:515:26Waxing Crescent20Fri
21Sat9:160.28:17-0.16:505:27Waxing Crescent21Sat
22Sun3:560.36:280.06:505:28First Quarter22Sun
23Mon3:470.52:24-0.16:505:29First Quarter23Mon
24Tue4:130.62:19-0.36:495:29First Quarter24Tue
25Wed4:510.72:48-0.56:495:30Waxing Gibbous25Wed
26Thu5:340.83:21-0.66:495:31Waxing Gibbous26Thu
27Fri6:170.93:54-0.76:485:32Waxing Gibbous27Fri
28Sat7:000.94:27-0.76:485:33Waxing Gibbous28Sat
29Sun7:410.94:59-0.76:475:34Full Moon29Sun
30Mon8:190.85:30-0.66:475:34Full Moon30Mon
31Tue8:550.85:58-0.66:465:35Full Moon31Tue
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 3:38 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 91% 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 Waning Gibbous (91% 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