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

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 3:17 pm (-0.4 ft)
Next high tide : in 30m at 4:18 am (1.7 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 - Apr 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:150.83:560.65:150.36:467:16New Moon1Tue
2Wed10:131.06:330.16:457:16New Moon2Wed
3Thu10:301.27:460.06:447:17Waxing Crescent3Thu
4Fri10:581.49:00-0.26:427:17Waxing Crescent4Fri
5Sat11:361.610:16-0.36:417:18Waxing Crescent5Sat
6Sun12:231.711:32-0.46:407:19Waxing Crescent6Sun
7Mon1:191.76:397:19First Quarter7Mon
8Tue2:241.712:44-0.56:387:20First Quarter8Tue
9Wed3:401.61:49-0.46:377:20First Quarter9Wed
10Thu5:101.52:47-0.36:367:21Waxing Gibbous10Thu
11Fri6:561.33:38-0.16:357:21Waxing Gibbous11Fri
12Sat8:551.04:160.16:347:22Waxing Gibbous12Sat
13Sun11:030.711:240.94:300.53:130.56:327:23Waxing Gibbous13Sun
14Mon9:350.93:370.75:030.36:317:23Full Moon14Mon
15Tue9:231.26:190.16:307:24Full Moon15Tue
16Wed9:421.47:22-0.16:297:24Full Moon16Wed
17Thu10:121.68:20-0.26:287:25Waning Gibbous17Thu
18Fri10:461.79:17-0.26:277:26Waning Gibbous18Fri
19Sat11:231.710:15-0.26:267:26Waning Gibbous19Sat
20Sun12:041.711:16-0.26:257:27Waning Gibbous20Sun
21Mon12:501.66:247:27Third Quarter21Mon
22Tue1:401.512:15-0.16:237:28Third Quarter22Tue
23Wed2:361.41:100.06:227:29Third Quarter23Wed
24Thu3:411.31:570.16:217:29Third Quarter24Thu
25Fri5:031.12:320.26:207:30Waning Crescent25Fri
26Sat7:041.02:530.46:207:30Waning Crescent26Sat
27Sun10:240.89:410.82:500.52:560.76:197:31Waning Crescent27Sun
28Mon9:060.91:590.74:180.56:187:32Waning Crescent28Mon
29Tue8:451.15:150.26:177:32New Moon29Tue
30Wed8:531.46:080.06:167:33New Moon30Wed
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 9:47 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 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