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

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:36 pm (-0.3 ft)
Next high tide : in 16m at 5:44 am (1.5 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:541.96:360.16:367:18Full Moon1Wed
2Thu9:591.87:190.36:367:17Full Moon2Thu
3Fri11:091.67:500.66:377:16Full Moon3Fri
4Sat12:361.47:340.96:377:15Waning Gibbous4Sat
5Sun12:171.06:170.76:387:14Waning Gibbous5Sun
6Mon12:031.39:100.66:387:13Waning Gibbous6Mon
7Tue12:381.611:180.36:397:11Third Quarter7Tue
8Wed1:271.812:450.26:397:10Third Quarter8Wed
9Thu2:241.91:530.16:407:09Third Quarter9Thu
10Fri3:292.02:520.16:407:08Third Quarter10Fri
11Sat4:401.93:440.16:417:07Waning Crescent11Sat
12Sun5:551.94:310.26:417:05Waning Crescent12Sun
13Mon7:051.85:100.36:427:04Waning Crescent13Mon
14Tue8:081.75:410.56:427:03Waning Crescent14Tue
15Wed9:021.66:020.66:437:02New Moon15Wed
16Thu9:531.56:090.86:437:00New Moon16Thu
17Fri10:441.45:530.96:446:59New Moon17Fri
18Sat12:011.111:211.23:481.05:051.16:446:58New Moon18Sat
19Sun11:191.45:400.96:456:57Waxing Crescent19Sun
20Mon11:361.57:170.86:456:56Waxing Crescent20Mon
21Tue8:530.76:466:54Waxing Crescent21Tue
22Wed12:041.710:240.66:466:53Waxing Crescent22Wed
23Thu12:411.811:400.56:476:52First Quarter23Thu
24Fri1:291.912:460.46:476:51First Quarter24Fri
25Sat2:272.01:450.36:486:50First Quarter25Sat
26Sun3:372.02:400.26:486:48First Quarter26Sun
27Mon4:582.03:320.26:496:47Waxing Gibbous27Mon
28Tue6:232.04:210.36:496:46Waxing Gibbous28Tue
29Wed7:471.95:070.56:506:45Waxing Gibbous29Wed
30Thu9:141.85:440.76:506:44Full Moon30Thu
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 11:10 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 79% 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 Waxing Gibbous (79% 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