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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 9h 10m at 3:02 pm (0.0 ft)
Next high tide (tomorrow) : 5:09 am (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (40% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:181.76:390.76:506:43New Moon1Sun
2Mon10:441.87:410.66:516:42Waxing Crescent2Mon
3Tue11:181.98:450.56:516:41Waxing Crescent3Tue
4Wed11:592.09:540.56:526:40Waxing Crescent4Wed
5Thu11:050.46:536:39Waxing Crescent5Thu
6Fri12:482.012:110.46:536:37First Quarter6Fri
7Sat1:452.01:100.36:546:36First Quarter7Sat
8Sun2:502.02:010.36:546:35First Quarter8Sun
9Mon4:062.02:460.46:556:34First Quarter9Mon
10Tue5:341.83:260.56:556:33Waxing Gibbous10Tue
11Wed7:161.73:580.76:566:32Waxing Gibbous11Wed
12Thu9:141.59:461.24:071.06:576:31Waxing Gibbous12Thu
13Fri11:591.48:531.43:120.93:011.36:576:30Full Moon13Fri
14Sat8:591.84:530.66:586:29Full Moon14Sat
15Sun9:322.16:160.36:586:27Full Moon15Sun
16Mon10:172.37:340.16:596:26Waning Gibbous16Mon
17Tue11:082.48:520.07:006:25Waning Gibbous17Tue
18Wed10:100.07:006:24Waning Gibbous18Wed
19Thu12:032.411:260.07:016:23Waning Gibbous19Thu
20Fri1:022.212:340.17:026:22Third Quarter20Fri
21Sat2:032.11:330.37:026:21Third Quarter21Sat
22Sun3:101.92:190.47:036:20Third Quarter22Sun
23Mon4:271.62:490.77:046:19Waning Crescent23Mon
24Tue6:151.411:191.22:550.97:046:19Waning Crescent24Tue
25Wed8:391.29:181.22:071.12:191.07:056:18Waning Crescent25Wed
26Thu8:401.43:520.97:066:17Waning Crescent26Thu
27Fri8:351.64:480.77:066:16New Moon27Fri
28Sat8:481.75:320.67:076:15New Moon28Sat
29Sun8:091.85:140.46:085:14New Moon29Sun
30Mon8:371.95:560.36:085:13New Moon30Mon
31Tue9:112.06:430.36:095:13Waxing Crescent31Tue
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 10:05 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 neap phase. Tonight's moon is 40% 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 minimum.

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 (40% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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