28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

91°
H -°
L 81°
E
8mph
High tide
1:37 am

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 12:51 pm (0.1 ft)
Next high tide (tomorrow) : in 8h 50m at 1:37 am (1.8 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:36 am
Moon phase : Third Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:141.25:486:15First Quarter1Sun
2Mon2:171.212:28-0.15:476:16First Quarter2Mon
3Tue3:331.21:19-0.15:456:16First Quarter3Tue
4Wed5:011.22:04-0.15:446:17Waxing Gibbous4Wed
5Thu6:321.12:440.05:436:17Waxing Gibbous5Thu
6Fri8:041.03:200.15:426:18Waxing Gibbous6Fri
7Sat10:570.69:440.93:470.31:290.55:416:18Full Moon7Sat
8Sun9:420.711:570.83:530.53:280.45:406:19Full Moon8Sun
9Mon9:180.93:060.74:590.25:396:19Full Moon9Mon
10Tue9:261.16:240.05:376:20Full Moon10Tue
11Wed9:561.47:47-0.15:366:21Waning Gibbous11Wed
12Thu10:371.59:09-0.25:356:21Waning Gibbous12Thu
13Fri11:241.610:26-0.25:346:22Waning Gibbous13Fri
14Sat12:161.611:36-0.25:336:22Third Quarter14Sat
15Sun1:121.55:326:23Third Quarter15Sun
16Mon2:151.412:37-0.15:316:23Third Quarter16Mon
17Tue3:321.21:270.05:306:24Waning Crescent17Tue
18Wed5:201.02:050.25:296:25Waning Crescent18Wed
19Thu7:230.92:270.45:286:25Waning Crescent19Thu
20Fri9:540.89:250.82:250.52:490.65:276:26Waning Crescent20Fri
21Sat9:020.91:500.73:520.55:266:26New Moon21Sat
22Sun8:461.04:420.45:256:27New Moon22Sun
23Mon8:481.15:260.35:246:28New Moon23Mon
24Tue9:011.36:100.25:236:28New Moon24Tue
25Wed9:221.46:550.15:226:29Waxing Crescent25Wed
26Thu9:481.47:440.15:216:29Waxing Crescent26Thu
27Fri10:191.58:360.05:206:30Waxing Crescent27Fri
28Sat10:551.59:310.05:196:31Waxing Crescent28Sat
29Sun11:351.510:260.05:186:31Waxing Crescent29Sun
30Mon12:201.511:180.15:176:32First Quarter30Mon
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 68% 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 (68% 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