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 6h 03m 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 - Mar 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:131.111:36-0.56:225:57First Quarter1Sat
2Sun1:011.16:215:58First Quarter2Sun
3Mon1:571.112:40-0.56:205:58First Quarter3Mon
4Tue3:021.11:35-0.66:195:59First Quarter4Tue
5Wed4:161.12:26-0.56:186:00Waxing Gibbous5Wed
6Thu5:301.13:12-0.56:176:00Waxing Gibbous6Thu
7Fri6:371.03:52-0.46:166:01Waxing Gibbous7Fri
8Sat7:350.94:25-0.36:156:02Waxing Gibbous8Sat
9Sun8:290.84:49-0.26:136:02Waxing Gibbous9Sun
10Mon9:250.74:570.06:126:03Full Moon10Mon
11Tue10:540.310:330.64:430.22:280.36:116:03Full Moon11Tue
12Wed10:080.53:560.34:260.26:106:04Full Moon12Wed
13Thu10:050.76:020.06:096:05Waning Gibbous13Thu
14Fri10:220.97:33-0.16:086:05Waning Gibbous14Fri
15Sat10:521.19:02-0.36:076:06Waning Gibbous15Sat
16Sun11:321.310:26-0.46:056:06Waning Gibbous16Sun
17Mon12:221.411:41-0.56:046:07Third Quarter17Mon
18Tue1:241.56:036:07Third Quarter18Tue
19Wed2:361.512:48-0.66:026:08Third Quarter19Wed
20Thu4:001.41:49-0.66:016:09Third Quarter20Thu
21Fri5:311.32:45-0.56:006:09Waning Crescent21Fri
22Sat7:041.23:35-0.45:586:10Waning Crescent22Sat
23Sun8:411.04:15-0.15:576:10Waning Crescent23Sun
24Mon10:480.410:380.84:360.21:520.35:566:11New Moon24Mon
25Tue9:090.63:590.54:100.25:556:11New Moon25Tue
26Wed9:000.95:430.05:546:12New Moon26Wed
27Thu9:241.27:02-0.25:536:13Waxing Crescent27Thu
28Fri9:591.48:15-0.35:516:13Waxing Crescent28Fri
29Sat10:381.59:26-0.35:506:14Waxing Crescent29Sat
30Sun11:211.510:34-0.35:496:14Waxing Crescent30Sun
31Mon12:081.511:39-0.25:486:15First Quarter31Mon
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 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