28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H 86°
L 82°
SE
9mph
High tide
12:51 am

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

TIDE TIMES for Tuesday, September 1, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 11:35 am (0.3 ft)
Next high tide (tomorrow) : in 9h 33m at 12:51 am (1.6 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waning Gibbous (78% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1908

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:471.56:37-0.15:166:33New Moon1Fri
2Sat9:171.67:29-0.15:156:33Waxing Crescent2Sat
3Sun9:511.78:20-0.15:146:34Waxing Crescent3Sun
4Mon10:261.79:12-0.15:136:34Waxing Crescent4Mon
5Tue11:041.610:05-0.15:136:35Waxing Crescent5Tue
6Wed11:441.610:560.05:126:36First Quarter6Wed
7Thu12:261.411:430.15:116:36First Quarter7Thu
8Fri1:111.35:106:37First Quarter8Fri
9Sat1:571.212:210.25:106:38First Quarter9Sat
10Sun2:521.012:480.35:096:38Waxing Gibbous10Sun
11Mon9:480.96:370.812:540.52:230.85:086:39Waxing Gibbous11Mon
12Tue8:180.912:280.63:110.65:076:39Waxing Gibbous12Tue
13Wed7:461.13:550.45:076:40Waxing Gibbous13Wed
14Thu7:451.34:400.25:066:41Full Moon14Thu
15Fri8:001.45:270.05:066:41Full Moon15Fri
16Sat8:261.66:17-0.25:056:42Full Moon16Sat
17Sun9:011.87:12-0.35:046:42Full Moon17Sun
18Mon9:411.88:11-0.45:046:43Waning Gibbous18Mon
19Tue10:261.99:12-0.45:036:44Waning Gibbous19Tue
20Wed11:141.810:12-0.35:036:44Waning Gibbous20Wed
21Thu12:031.711:07-0.25:026:45Third Quarter21Thu
22Fri12:521.511:530.05:026:45Third Quarter22Fri
23Sat1:331.25:026:46Third Quarter23Sat
24Sun11:230.912:210.35:016:47Waning Crescent24Sun
25Mon8:290.912:130.53:170.65:016:47Waning Crescent25Mon
26Tue7:261.13:520.35:006:48Waning Crescent26Tue
27Wed7:131.34:340.05:006:48Waning Crescent27Wed
28Thu7:261.55:16-0.15:006:49New Moon28Thu
29Fri7:511.65:57-0.24:596:49New Moon29Fri
30Sat8:211.76:37-0.34:596:50New Moon30Sat
31Sun8:531.77:17-0.34:596:50New Moon31Sun
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 78% 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 Waning Gibbous (78% 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