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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 48m at 8:33 pm (-0.3 ft)
Next high tide (tomorrow) : 10:48 am (1.5 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:101.26:060.26:157:33Full Moon1Thu
2Fri9:261.46:450.16:147:34Full Moon2Fri
3Sat9:481.47:240.16:147:35Full Moon3Sat
4Sun10:131.58:040.06:137:35Full Moon4Sun
5Mon10:411.58:470.06:127:36Waning Gibbous5Mon
6Tue11:121.59:310.06:117:36Waning Gibbous6Tue
7Wed11:451.510:180.16:117:37Waning Gibbous7Wed
8Thu12:201.411:030.16:107:38Waning Gibbous8Thu
9Fri12:551.311:430.26:097:38Third Quarter9Fri
10Sat1:291.26:087:39Third Quarter10Sat
11Sun1:511.112:160.36:087:40Third Quarter11Sun
12Mon11:470.912:370.46:077:40Third Quarter12Mon
13Tue9:270.98:020.712:420.53:560.76:067:41Waning Crescent13Tue
14Wed8:391.012:090.74:130.56:067:41Waning Crescent14Wed
15Thu8:271.24:520.36:057:42Waning Crescent15Thu
16Fri8:361.35:390.06:057:43New Moon16Fri
17Sat9:001.56:30-0.16:047:43New Moon17Sat
18Sun9:331.77:25-0.36:047:44New Moon18Sun
19Mon10:121.88:22-0.36:037:44New Moon19Mon
20Tue10:551.89:21-0.36:037:45Waxing Crescent20Tue
21Wed11:401.710:18-0.26:027:46Waxing Crescent21Wed
22Thu12:231.611:09-0.16:027:46Waxing Crescent22Thu
23Fri1:001.411:500.16:017:47First Quarter23Fri
24Sat1:131.26:017:47First Quarter24Sat
25Sun11:170.912:120.311:530.56:017:48First Quarter25Sun
26Mon9:060.95:520.66:007:48Waxing Gibbous26Mon
27Tue8:131.04:580.46:007:49Waxing Gibbous27Tue
28Wed8:011.25:190.26:007:50Waxing Gibbous28Wed
29Thu8:101.35:480.16:007:50Waxing Gibbous29Thu
30Fri8:291.46:180.05:597:51Full Moon30Fri
31Sat8:531.56:48-0.15:597:51Full Moon31Sat
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 3:40 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 97% 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 (97% 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