28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H 85°
L 80°
NNE
5mph
Low tide
1:58 pm

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 53m at 1:58 pm (-0.1 ft)
Next high tide (tomorrow) : 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 - Jul 1897

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:131.67:26-0.35:027:00New Moon1Thu
2Fri9:491.57:51-0.25:037:00Waxing Crescent2Fri
3Sat10:221.48:10-0.15:037:00Waxing Crescent3Sat
4Sun10:521.28:140.15:037:00Waxing Crescent4Sun
5Mon11:030.97:450.35:047:00Waxing Crescent5Mon
6Tue5:130.75:380.45:046:59First Quarter6Tue
7Wed3:520.91:510.25:056:59First Quarter7Wed
8Thu3:481.22:08-0.15:056:59First Quarter8Thu
9Fri4:161.52:50-0.45:066:59Waxing Gibbous9Fri
10Sat5:001.73:39-0.65:066:59Waxing Gibbous10Sat
11Sun5:531.94:32-0.75:076:58Waxing Gibbous11Sun
12Mon6:511.95:25-0.75:076:58Full Moon12Mon
13Tue7:481.96:16-0.75:086:58Full Moon13Tue
14Wed8:421.87:02-0.55:086:58Full Moon14Wed
15Thu9:311.67:40-0.35:096:57Full Moon15Thu
16Fri10:141.48:030.05:096:57Waning Gibbous16Fri
17Sat10:491.17:560.25:106:57Waning Gibbous17Sat
18Sun11:020.96:590.45:106:56Waning Gibbous18Sun
19Mon3:570.74:480.55:116:56Third Quarter19Mon
20Tue2:470.92:050.35:116:55Third Quarter20Tue
21Wed2:501.11:520.15:126:55Third Quarter21Wed
22Thu3:151.32:170.05:126:54Third Quarter22Thu
23Fri3:531.42:51-0.25:136:54Waning Crescent23Fri
24Sat4:391.53:30-0.35:146:53Waning Crescent24Sat
25Sun5:291.64:10-0.35:146:53Waning Crescent25Sun
26Mon6:191.64:49-0.35:156:52Waning Crescent26Mon
27Tue7:081.75:26-0.35:156:52Waning Crescent27Tue
28Wed7:521.75:59-0.35:166:51New Moon28Wed
29Thu8:331.66:27-0.25:166:50New Moon29Thu
30Fri9:131.56:480.05:176:50New Moon30Fri
31Sat9:531.46:590.25:186:49Waxing Crescent31Sat
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 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