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 9h 01m 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 - Dec 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:361.44:000.06:344:59Waxing Gibbous1Sun
2Mon6:581.54:32-0.16:344:59Waxing Gibbous2Mon
3Tue7:261.65:04-0.26:354:59Full Moon3Tue
4Wed7:571.65:39-0.36:365:00Full Moon4Wed
5Thu8:331.66:17-0.46:375:00Full Moon5Thu
6Fri9:101.66:59-0.46:375:00Full Moon6Fri
7Sat9:491.67:43-0.46:385:00Waning Gibbous7Sat
8Sun10:271.58:27-0.36:395:00Waning Gibbous8Sun
9Mon11:041.49:08-0.36:395:00Waning Gibbous9Mon
10Tue11:371.29:43-0.26:405:00Waning Gibbous10Tue
11Wed10:09-0.16:415:01Third Quarter11Wed
12Thu12:031.011:300.710:210.16:415:01Third Quarter12Thu
13Fri7:000.79:590.36:425:01Third Quarter13Fri
14Sat5:430.83:250.46:435:02Third Quarter14Sat
15Sun5:301.12:330.06:435:02Waning Crescent15Sun
16Mon5:511.43:09-0.36:445:02Waning Crescent16Mon
17Tue6:291.63:56-0.66:455:03Waning Crescent17Tue
18Wed7:181.84:49-0.96:455:03New Moon18Wed
19Thu8:121.85:47-1.06:465:04New Moon19Thu
20Fri9:071.86:47-1.06:465:04New Moon20Fri
21Sat10:021.77:48-1.06:475:04Waxing Crescent21Sat
22Sun10:531.58:47-0.86:475:05Waxing Crescent22Sun
23Mon11:381.29:37-0.66:485:06Waxing Crescent23Mon
24Tue10:13-0.36:485:06First Quarter24Tue
25Wed12:060.810:450.510:140.06:495:07First Quarter25Wed
26Thu5:530.58:370.26:495:07First Quarter26Thu
27Fri4:520.73:150.16:495:08First Quarter27Fri
28Sat4:550.92:54-0.26:505:08Waxing Gibbous28Sat
29Sun5:181.03:16-0.46:505:09Waxing Gibbous29Sun
30Mon5:501.13:45-0.66:505:10Waxing Gibbous30Mon
31Tue6:261.24:18-0.76:515:10Waxing Gibbous31Tue
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