28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

83°
H -°
L 81°
NE
2mph
High tide
3:46 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:00 pm (-0.2 ft)
Next high tide (tomorrow) : in 9h 31m at 3:46 am (2.1 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:420.51:27-0.16:465:36First Quarter1Fri
2Sat2:110.712:39-0.46:455:37First Quarter2Sat
3Sun2:560.91:14-0.66:455:38First Quarter3Sun
4Mon3:541.11:59-0.86:445:39First Quarter4Mon
5Tue5:001.22:49-1.06:435:40Waxing Gibbous5Tue
6Wed6:081.33:41-1.16:435:40Waxing Gibbous6Wed
7Thu7:161.44:35-1.26:425:41Waxing Gibbous7Thu
8Fri8:211.35:28-1.16:415:42Full Moon8Fri
9Sat9:241.16:18-0.96:415:43Full Moon9Sat
10Sun10:290.97:02-0.76:405:43Full Moon10Sun
11Mon11:430.57:31-0.36:395:44Waning Gibbous11Mon
12Tue12:230.17:020.05:410.06:385:45Waning Gibbous12Tue
13Wed11:580.49:26-0.26:385:46Waning Gibbous13Wed
14Thu12:280.711:31-0.56:375:47Third Quarter14Thu
15Fri1:120.96:365:47Third Quarter15Fri
16Sat2:051.012:42-0.76:355:48Third Quarter16Sat
17Sun3:041.11:39-0.86:345:49Third Quarter17Sun
18Mon4:101.12:30-0.86:335:49Waning Crescent18Mon
19Tue5:191.13:17-0.86:325:50Waning Crescent19Tue
20Wed6:231.04:01-0.76:315:51Waning Crescent20Wed
21Thu7:201.04:39-0.66:305:52Waning Crescent21Thu
22Fri8:090.95:12-0.56:295:52New Moon22Fri
23Sat8:530.85:38-0.46:295:53New Moon23Sat
24Sun9:350.75:52-0.26:285:54New Moon24Sun
25Mon10:200.55:48-0.16:275:54New Moon25Mon
26Tue11:420.211:190.45:180.13:500.16:265:55Waxing Crescent26Tue
27Wed11:140.44:150.26:050.16:245:56Waxing Crescent27Wed
28Thu11:200.68:12-0.16:235:56Waxing Crescent28Thu
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 neap phase. Tonight's moon is 46% 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 (46% 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