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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:08 pm (-0.6 ft)
Next high tide (tomorrow) : in 10h 18m at 6:28 am (2.0 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:060.62:580.16:515:11First Quarter1Wed
2Thu5:060.92:24-0.26:515:11Waxing Gibbous2Thu
3Fri5:341.12:59-0.66:515:12Waxing Gibbous3Fri
4Sat6:171.43:45-0.96:515:13Waxing Gibbous4Sat
5Sun7:081.54:37-1.16:525:14Full Moon5Sun
6Mon8:031.65:33-1.26:525:14Full Moon6Mon
7Tue8:591.56:30-1.26:525:15Full Moon7Tue
8Wed9:531.47:27-1.16:525:16Full Moon8Wed
9Thu10:421.28:20-0.96:525:17Waning Gibbous9Thu
10Fri11:240.99:05-0.66:525:17Waning Gibbous10Fri
11Sat11:490.59:31-0.46:525:18Waning Gibbous11Sat
12Sun9:340.39:13-0.16:525:19Third Quarter12Sun
13Mon4:420.37:020.06:525:20Third Quarter13Mon
14Tue4:110.52:52-0.16:525:21Third Quarter14Tue
15Wed4:260.72:38-0.46:525:21Third Quarter15Wed
16Thu4:560.93:01-0.56:525:22Waning Crescent16Thu
17Fri5:331.03:31-0.76:525:23Waning Crescent17Fri
18Sat6:151.04:04-0.86:515:24Waning Crescent18Sat
19Sun6:581.14:40-0.86:515:25Waning Crescent19Sun
20Mon7:421.15:18-0.86:515:26New Moon20Mon
21Tue8:241.15:56-0.86:515:26New Moon21Tue
22Wed9:031.06:32-0.86:505:27New Moon22Wed
23Thu9:391.07:04-0.76:505:28New Moon23Thu
24Fri10:140.97:31-0.66:505:29Waxing Crescent24Fri
25Sat10:470.77:51-0.56:495:30Waxing Crescent25Sat
26Sun11:180.57:59-0.46:495:31Waxing Crescent26Sun
27Mon11:290.27:44-0.26:495:31Waxing Crescent27Mon
28Tue3:100.36:310.06:485:32First Quarter28Tue
29Wed2:550.51:20-0.16:485:33First Quarter29Wed
30Thu3:200.81:16-0.46:475:34First Quarter30Thu
31Fri4:041.01:58-0.76:475:35Waxing Gibbous31Fri
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 11:48 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 transitional phase. Tonight's moon is 22% 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 shifting between spring and neap.

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 Crescent (22% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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