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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:06 pm (0.3 ft)
Next high tide : in 4h 18m at 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:041.63:480.86:506:43Waning Crescent1Sat
2Sun8:361.510:431.14:050.96:516:42Waning Crescent2Sun
3Mon10:181.49:461.32:121.03:581.16:516:41New Moon3Mon
4Tue12:421.34:010.92:481.36:526:40New Moon4Tue
5Wed9:521.75:270.76:526:39New Moon5Wed
6Thu10:251.96:480.56:536:38New Moon6Thu
7Fri11:082.08:100.46:546:36Waxing Crescent7Fri
8Sat11:582.19:320.36:546:35Waxing Crescent8Sat
9Sun10:530.36:556:34Waxing Crescent9Sun
10Mon12:522.112:060.36:556:33First Quarter10Mon
11Tue1:522.01:110.46:566:32First Quarter11Tue
12Wed2:591.92:040.56:566:31First Quarter12Wed
13Thu4:211.72:440.76:576:30Waxing Gibbous13Thu
14Fri6:121.53:060.96:586:29Waxing Gibbous14Fri
15Sat8:201.39:551.22:591.06:586:28Waxing Gibbous15Sat
16Sun10:361.29:101.43:211.02:041.26:596:27Waxing Gibbous16Sun
17Mon9:031.54:270.97:006:26Full Moon17Mon
18Tue9:131.65:180.87:006:25Full Moon18Tue
19Wed9:321.76:030.77:016:24Full Moon19Wed
20Thu9:561.86:470.67:016:23Full Moon20Thu
21Fri10:251.97:320.57:026:22Waning Gibbous21Fri
22Sat10:581.98:220.57:036:21Waning Gibbous22Sat
23Sun11:351.99:160.57:036:20Waning Gibbous23Sun
24Mon10:130.57:046:19Waning Gibbous24Mon
25Tue12:151.911:080.57:056:18Third Quarter25Tue
26Wed12:591.811:580.57:056:17Third Quarter26Wed
27Thu1:471.712:400.57:066:16Third Quarter27Thu
28Fri2:441.61:150.67:076:15Third Quarter28Fri
29Sat4:171.410:571.21:390.87:086:14Waning Crescent29Sat
30Sun6:111.27:571.21:021.212:430.96:085:14Waning Crescent30Sun
31Mon9:371.17:211.41:580.911:51 AM1.16:095:13Waning Crescent31Mon
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 4:34 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 72% 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 (72% 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