28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

81°
H 82°
L 78°
ENE
17mph
Low tide
4:50 pm

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

TIDE TIMES for Friday, September 25, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 03m at 4:50 pm (1.0 ft)
Next high tide : 10:33 pm (1.1 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 6:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1860

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:301.74:51-0.45:087:01Waxing Gibbous1Fri
2Sat7:091.95:38-0.55:087:01Full Moon2Sat
3Sun7:521.96:25-0.55:087:02Full Moon3Sun
4Mon8:361.97:12-0.55:077:02Full Moon4Mon
5Tue9:181.87:55-0.45:077:03Waning Gibbous5Tue
6Wed9:581.78:34-0.35:077:03Waning Gibbous6Wed
7Thu10:351.69:07-0.15:077:03Waning Gibbous7Thu
8Fri11:051.49:290.15:077:04Waning Gibbous8Fri
9Sat11:241.29:340.25:077:04Third Quarter9Sat
10Sun11:041.09:040.45:077:05Third Quarter10Sun
11Mon7:440.87:190.55:077:05Third Quarter11Mon
12Tue5:440.93:470.45:077:05Third Quarter12Tue
13Wed5:141.13:160.25:077:06Waning Crescent13Wed
14Thu5:201.33:33-0.15:077:06Waning Crescent14Thu
15Fri5:441.54:03-0.25:077:06Waning Crescent15Fri
16Sat6:181.64:40-0.45:077:07Waning Crescent16Sat
17Sun6:581.75:21-0.55:087:07New Moon17Sun
18Mon7:421.86:05-0.65:087:07New Moon18Mon
19Tue8:271.96:51-0.65:087:08New Moon19Tue
20Wed9:131.87:36-0.55:087:08New Moon20Wed
21Thu9:591.88:19-0.45:087:08Waxing Crescent21Thu
22Fri10:431.68:55-0.25:097:08Waxing Crescent22Fri
23Sat11:221.39:140.15:097:08Waxing Crescent23Sat
24Sun11:381.08:510.35:097:09First Quarter24Sun
25Mon6:180.75:490.55:097:09First Quarter25Mon
26Tue4:331.02:160.25:107:09First Quarter26Tue
27Wed4:241.22:42-0.25:107:09First Quarter27Wed
28Thu4:491.53:23-0.45:107:09Waxing Gibbous28Thu
29Fri5:291.74:08-0.55:117:09Waxing Gibbous29Fri
30Sat6:141.84:53-0.65:117:09Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Collapse All
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