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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2h 21m at 7:21 pm (0.5 ft)
Next high tide (tomorrow) : 3:27 am (0.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:200.79:57 AM0.83:000.65:380.26:477:15Full Moon1Wed
2Thu9:581.06:430.16:457:16Full Moon2Thu
3Fri10:141.27:390.06:447:17Full Moon3Fri
4Sat10:381.38:34-0.16:437:17Waning Gibbous4Sat
5Sun11:091.49:33-0.16:427:18Waning Gibbous5Sun
6Mon11:451.510:37-0.26:417:18Waning Gibbous6Mon
7Tue12:281.511:44-0.26:407:19Waning Gibbous7Tue
8Wed1:181.56:397:19Third Quarter8Wed
9Thu2:151.412:47-0.16:377:20Third Quarter9Thu
10Fri3:201.41:42-0.16:367:21Third Quarter10Fri
11Sat4:351.32:27-0.16:357:21Third Quarter11Sat
12Sun6:051.23:040.16:347:22Waning Crescent12Sun
13Mon7:541.03:300.26:337:22Waning Crescent13Mon
14Tue10:430.710:100.93:390.42:200.66:327:23Waning Crescent14Tue
15Wed9:170.83:110.74:100.36:317:23Waning Crescent15Wed
16Thu8:571.15:270.16:307:24New Moon16Thu
17Fri9:111.46:37-0.26:297:25New Moon17Fri
18Sat9:431.77:46-0.36:287:25New Moon18Sat
19Sun10:261.88:59-0.56:277:26Waxing Crescent19Sun
20Mon11:161.910:13-0.56:267:26Waxing Crescent20Mon
21Tue12:112.011:26-0.56:257:27Waxing Crescent21Tue
22Wed1:111.96:247:28First Quarter22Wed
23Thu2:131.712:34-0.46:237:28First Quarter23Thu
24Fri3:201.51:33-0.26:227:29First Quarter24Fri
25Sat4:411.22:190.06:217:29First Quarter25Sat
26Sun7:060.92:450.36:207:30Waxing Gibbous26Sun
27Mon9:570.82:320.63:480.66:197:31Waxing Gibbous27Mon
28Tue8:471.04:530.46:187:31Waxing Gibbous28Tue
29Wed8:341.25:400.26:177:32Waxing Gibbous29Wed
30Thu8:451.46:200.06:167:32Full 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 11:24 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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