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

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 10h 14m at 3:17 pm (-0.4 ft)
Next high tide (tomorrow) : 5:20 am (1.9 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:22 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:402.18:26-0.75:597:51Full Moon1Thu
2Fri10:332.19:26-0.65:597:51Waning Gibbous2Fri
3Sat11:252.010:22-0.55:587:52Waning Gibbous3Sat
4Sun12:131.711:10-0.35:587:52Waning Gibbous4Sun
5Mon12:541.511:430.05:587:53Third Quarter5Mon
6Tue1:171.211:500.25:587:53Third Quarter6Tue
7Wed12:180.911:050.55:587:54Third Quarter7Wed
8Thu8:400.97:270.55:587:54Third Quarter8Thu
9Fri7:151.04:410.35:587:55Waning Crescent9Fri
10Sat6:551.24:470.15:587:55Waning Crescent10Sat
11Sun7:011.45:10-0.15:587:56Waning Crescent11Sun
12Mon7:221.55:40-0.25:587:56Waning Crescent12Mon
13Tue7:501.66:14-0.35:587:56New Moon13Tue
14Wed8:241.76:51-0.45:587:57New Moon14Wed
15Thu9:021.77:31-0.45:587:57New Moon15Thu
16Fri9:411.78:12-0.45:587:57New Moon16Fri
17Sat10:211.78:52-0.45:587:58Waxing Crescent17Sat
18Sun11:001.79:29-0.45:587:58Waxing Crescent18Sun
19Mon11:371.610:02-0.35:597:58Waxing Crescent19Mon
20Tue12:121.410:28-0.15:597:58Waxing Crescent20Tue
21Wed12:411.210:400.15:597:59First Quarter21Wed
22Thu12:240.910:130.45:597:59First Quarter22Thu
23Fri7:280.86:000.55:597:59First Quarter23Fri
24Sat6:091.03:290.16:007:59First Quarter24Sat
25Sun6:001.34:01-0.26:007:59Waxing Gibbous25Sun
26Mon6:241.64:47-0.56:007:59Waxing Gibbous26Mon
27Tue7:051.85:39-0.76:018:00Waxing Gibbous27Tue
28Wed7:552.06:33-0.86:018:00Full Moon28Wed
29Thu8:492.07:29-0.86:018:00Full Moon29Thu
30Fri9:432.08:22-0.76:028:00Full Moon30Fri
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 10:18 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 transitional phase. Tonight's moon is 32% 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 Third Quarter (32% 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