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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:56 pm (-0.3 ft)
Next high tide (tomorrow) : in 11h 26m at 7:23 am (1.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:321.05:56-0.86:465:36Full Moon1Sat
2Sun9:100.96:25-0.76:455:37Full Moon2Sun
3Mon9:470.86:47-0.66:455:38Full Moon3Mon
4Tue10:250.66:59-0.46:445:39Waning Gibbous4Tue
5Wed11:080.46:54-0.36:435:39Waning Gibbous5Wed
6Thu1:360.26:18-0.16:180.16:435:40Waning Gibbous6Thu
7Fri12:110.11:040.44:300.010:43-0.26:425:41Waning Gibbous7Fri
8Sat1:170.66:415:42Third Quarter8Sat
9Sun1:530.912:03-0.56:405:43Third Quarter9Sun
10Mon2:461.11:01-0.76:405:43Third Quarter10Mon
11Tue3:521.21:58-1.06:395:44Waning Crescent11Tue
12Wed5:051.32:55-1.16:385:45Waning Crescent12Wed
13Thu6:191.33:51-1.16:375:46Waning Crescent13Thu
14Fri7:291.34:45-1.16:375:46Waning Crescent14Fri
15Sat8:341.25:36-0.96:365:47New Moon15Sat
16Sun9:341.06:20-0.76:355:48New Moon16Sun
17Mon10:340.76:52-0.46:345:49New Moon17Mon
18Tue11:420.46:52-0.16:335:49Waxing Crescent18Tue
19Wed11:460.35:410.16:130.06:325:50Waxing Crescent19Wed
20Thu11:440.59:11-0.26:315:51Waxing Crescent20Thu
21Fri12:090.711:03-0.36:305:52Waxing Crescent21Fri
22Sat12:450.96:295:52First Quarter22Sat
23Sun1:281.012:09-0.56:285:53First Quarter23Sun
24Mon2:211.01:03-0.66:275:54First Quarter24Mon
25Tue3:251.11:54-0.66:265:54First Quarter25Tue
26Wed4:361.12:43-0.66:255:55Waxing Gibbous26Wed
27Thu5:471.13:29-0.66:245:56Waxing Gibbous27Thu
28Fri6:481.14:11-0.66:235:56Waxing Gibbous28Fri
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 12:39 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 86% 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 Waxing Gibbous (86% 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