28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 81°
E
4mph
High tide
1:37 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 12:51 pm (0.1 ft)
Next high tide : in 2h 19m 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 - Oct 1905

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:271.86:550.65:505:44Waxing Crescent1Sun
2Mon11:121.98:330.55:515:43Waxing Crescent2Mon
3Tue10:020.45:515:42Waxing Crescent3Tue
4Wed12:032.011:190.45:525:40First Quarter4Wed
5Thu1:012.012:240.45:525:39First Quarter5Thu
6Fri2:061.91:190.45:535:38First Quarter6Fri
7Sat3:231.82:040.65:535:37Waxing Gibbous7Sat
8Sun4:531.62:380.75:545:36Waxing Gibbous8Sun
9Mon6:241.52:580.85:545:35Waxing Gibbous9Mon
10Tue7:471.410:141.23:021.05:555:34Waxing Gibbous10Tue
11Wed9:071.39:201.31:541.12:441.15:565:32Full Moon11Wed
12Thu10:381.29:031.43:131.01:561.25:565:31Full Moon12Thu
13Fri9:041.54:130.95:575:30Full Moon13Fri
14Sat9:171.65:080.85:575:29Full Moon14Sat
15Sun9:391.76:020.75:585:28Waning Gibbous15Sun
16Mon10:071.86:590.75:595:27Waning Gibbous16Mon
17Tue10:401.88:000.65:595:26Waning Gibbous17Tue
18Wed11:191.89:040.66:005:25Waning Gibbous18Wed
19Thu10:080.56:015:24Third Quarter19Thu
20Fri12:041.811:060.56:015:23Third Quarter20Fri
21Sat12:581.811:590.56:025:22Third Quarter21Sat
22Sun2:041.712:470.56:035:21Third Quarter22Sun
23Mon3:341.61:290.66:035:20Waning Crescent23Mon
24Tue5:331.52:030.76:045:19Waning Crescent24Tue
25Wed7:401.49:051.22:220.96:055:18Waning Crescent25Wed
26Thu10:001.38:251.32:160.92:031.16:055:17New Moon26Thu
27Fri8:201.63:380.76:065:16New Moon27Fri
28Sat8:401.84:510.56:075:16New Moon28Sat
29Sun9:141.96:030.36:075:15New Moon29Sun
30Mon9:552.07:140.26:085:14Waxing Crescent30Mon
31Tue10:402.08:250.26:095:13Waxing Crescent31Tue
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