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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 57m at 7:08 pm (-0.2 ft)
Next high tide (tomorrow) : 9:35 am (1.6 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:16 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:331.66:23-0.36:157:33Full Moon1Sat
2Sun9:121.97:27-0.56:157:34Full Moon2Sun
3Mon9:592.08:34-0.56:147:34Waning Gibbous3Mon
4Tue10:502.19:42-0.56:137:35Waning Gibbous4Tue
5Wed11:452.010:49-0.46:127:36Waning Gibbous5Wed
6Thu12:391.911:51-0.36:117:36Waning Gibbous6Thu
7Fri1:321.66:117:37Third Quarter7Fri
8Sat2:191.412:410.06:107:38Third Quarter8Sat
9Sun2:431.11:150.26:097:38Third Quarter9Sun
10Mon10:460.91:160.56:097:39Waning Crescent10Mon
11Tue8:341.012:050.74:300.56:087:39Waning Crescent11Tue
12Wed7:541.14:560.36:077:40Waning Crescent12Wed
13Thu7:521.35:270.16:077:41Waning Crescent13Thu
14Fri8:061.55:580.06:067:41New Moon14Fri
15Sat8:281.66:32-0.16:067:42New Moon15Sat
16Sun8:561.77:08-0.26:057:42New Moon16Sun
17Mon9:281.77:48-0.26:047:43New Moon17Mon
18Tue10:031.78:31-0.26:047:44New Moon18Tue
19Wed10:411.79:16-0.26:037:44Waxing Crescent19Wed
20Thu11:201.710:00-0.26:037:45Waxing Crescent20Thu
21Fri11:591.610:40-0.16:027:45Waxing Crescent21Fri
22Sat12:381.511:140.06:027:46Waxing Crescent22Sat
23Sun1:131.411:400.26:027:47First Quarter23Sun
24Mon1:381.111:480.46:017:47First Quarter24Mon
25Tue10:220.911:080.66:017:48First Quarter25Tue
26Wed7:420.93:320.56:017:48Waxing Gibbous26Wed
27Thu6:591.24:020.16:007:49Waxing Gibbous27Thu
28Fri7:021.54:48-0.26:007:49Waxing Gibbous28Fri
29Sat7:301.75:40-0.56:007:50Waxing Gibbous29Sat
30Sun8:121.96:37-0.65:597:51Full Moon30Sun
31Mon9:012.17:35-0.75:597:51Full Moon31Mon
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 2:21 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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