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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 1:02 pm (0.4 ft)
Next high tide (tomorrow) : in 7h 52m at 2:43 am (1.0 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:080.88:540.71:410.53:460.76:167:32Waxing Gibbous1Sun
2Mon8:381.012:220.74:280.56:157:33Waxing Gibbous2Mon
3Tue8:141.25:070.36:157:34Waxing Gibbous3Tue
4Wed8:191.35:440.16:147:34Waxing Gibbous4Wed
5Thu8:371.56:190.06:137:35Full Moon5Thu
6Fri9:011.56:540.06:127:36Full Moon6Fri
7Sat9:291.67:32-0.16:117:36Full Moon7Sat
8Sun10:001.68:13-0.16:117:37Full Moon8Sun
9Mon10:341.78:58-0.16:107:37Waning Gibbous9Mon
10Tue11:111.69:43-0.16:097:38Waning Gibbous10Tue
11Wed11:491.610:270.06:087:39Waning Gibbous11Wed
12Thu12:271.511:070.16:087:39Waning Gibbous12Thu
13Fri1:041.411:390.26:077:40Third Quarter13Fri
14Sat1:381.26:077:40Third Quarter14Sat
15Sun1:461.012:010.36:067:41Third Quarter15Sun
16Mon9:140.912:020.511:080.76:057:42Third Quarter16Mon
17Tue7:471.03:410.46:057:42Waning Crescent17Tue
18Wed7:251.24:210.16:047:43Waning Crescent18Wed
19Thu7:351.55:09-0.16:047:43Waning Crescent19Thu
20Fri8:041.76:02-0.46:037:44New Moon20Fri
21Sat8:451.96:59-0.56:037:45New Moon21Sat
22Sun9:322.07:58-0.56:027:45New Moon22Sun
23Mon10:222.08:57-0.56:027:46Waxing Crescent23Mon
24Tue11:131.99:55-0.46:017:46Waxing Crescent24Tue
25Wed12:021.710:46-0.26:017:47Waxing Crescent25Wed
26Thu12:451.511:250.06:017:48Waxing Crescent26Thu
27Fri1:111.211:380.36:007:48First Quarter27Fri
28Sat11:570.910:560.56:007:49First Quarter28Sat
29Sun8:210.96:100.66:007:49First Quarter29Sun
30Mon7:101.04:340.35:597:50Waxing Gibbous30Mon
31Tue6:591.24:500.15:597:50Waxing Gibbous31Tue
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 7:52 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 75% 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 Gibbous (75% 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