28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H -°
L 81°
WSW
6mph
High tide
5:05 am

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

TIDE TIMES for Sunday, September 6, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 3:57 pm (-0.1 ft)
Next high tide : in 5h 56m at 5:05 am (2.1 ft)
Sunset today : 7:14 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:101.54:49-0.24:596:51Full Moon1Sun
2Mon7:381.75:38-0.44:586:52Full Moon2Mon
3Tue8:151.86:31-0.54:586:52Full Moon3Tue
4Wed8:581.97:28-0.64:586:53Full Moon4Wed
5Thu9:451.98:26-0.64:586:53Waning Gibbous5Thu
6Fri10:351.99:24-0.54:586:54Waning Gibbous6Fri
7Sat11:241.710:16-0.34:586:54Waning Gibbous7Sat
8Sun12:081.510:58-0.14:586:54Third Quarter8Sun
9Mon12:361.211:170.24:586:55Third Quarter9Mon
10Tue10:420.910:440.54:586:55Third Quarter10Tue
11Wed7:380.93:520.54:586:56Waning Crescent11Wed
12Thu6:361.03:440.24:586:56Waning Crescent12Thu
13Fri6:271.34:14-0.14:586:56Waning Crescent13Fri
14Sat6:431.54:48-0.24:586:57Waning Crescent14Sat
15Sun7:081.65:23-0.34:586:57New Moon15Sun
16Mon7:381.65:58-0.44:586:57New Moon16Mon
17Tue8:111.76:33-0.44:586:58New Moon17Tue
18Wed8:441.77:10-0.34:586:58New Moon18Wed
19Thu9:191.67:47-0.34:596:58Waxing Crescent19Thu
20Fri9:541.68:24-0.24:596:58Waxing Crescent20Fri
21Sat10:291.58:58-0.24:596:59Waxing Crescent21Sat
22Sun11:001.49:250.04:596:59Waxing Crescent22Sun
23Mon11:251.29:400.14:596:59First Quarter23Mon
24Tue11:301.09:350.35:006:59First Quarter24Tue
25Wed9:230.88:520.45:006:59First Quarter25Wed
26Thu6:350.85:150.45:006:59First Quarter26Thu
27Fri5:471.03:090.25:017:00Waxing Gibbous27Fri
28Sat5:441.23:26-0.15:017:00Waxing Gibbous28Sat
29Sun6:031.44:02-0.35:017:00Waxing Gibbous29Sun
30Mon6:371.64:47-0.55:027:00Waxing Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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Is this week a spring tide or neap tide in Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a transitional phase. Tonight's moon is 34% 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 shifting between spring and neap.

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 (34% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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