28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

87°
H -°
L 81°
NW
4mph
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 11h 42m 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 - Oct 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:121.510:161.13:421.05:505:43Waxing Gibbous1Tue
2Wed9:301.39:041.31:281.13:021.15:515:42Full Moon2Wed
3Thu8:481.43:190.95:515:41Full Moon3Thu
4Fri8:571.64:360.85:525:40Full Moon4Fri
5Sat9:191.85:430.75:525:39Full Moon5Sat
6Sun9:491.96:480.65:535:38Waning Gibbous6Sun
7Mon10:262.07:560.55:545:37Waning Gibbous7Mon
8Tue11:112.19:080.45:545:35Waning Gibbous8Tue
9Wed10:200.35:555:34Waning Gibbous9Wed
10Thu12:052.211:270.25:555:33Third Quarter10Thu
11Fri1:072.212:280.25:565:32Third Quarter11Fri
12Sat2:212.11:230.25:565:31Third Quarter12Sat
13Sun3:482.02:120.45:575:30Waning Crescent13Sun
14Mon5:321.82:530.65:585:29Waning Crescent14Mon
15Tue7:321.69:331.13:150.95:585:28Waning Crescent15Tue
16Wed10:031.48:001.31:331.02:391.25:595:27New Moon16Wed
17Thu7:501.73:310.76:005:26New Moon17Thu
18Fri8:172.04:550.46:005:25New Moon18Fri
19Sat8:562.26:090.26:015:24New Moon19Sat
20Sun9:402.37:190.16:015:23Waxing Crescent20Sun
21Mon10:272.38:290.16:025:22Waxing Crescent21Mon
22Tue11:172.29:380.16:035:21Waxing Crescent22Tue
23Wed10:440.26:035:20First Quarter23Wed
24Thu12:092.111:430.36:045:19First Quarter24Thu
25Fri1:041.912:320.46:055:18First Quarter25Fri
26Sat2:041.71:120.56:065:17First Quarter26Sat
27Sun3:161.61:370.76:065:16Waxing Gibbous27Sun
28Mon5:041.410:061.11:430.96:075:15Waxing Gibbous28Mon
29Tue7:311.28:091.21:051.11:111.06:085:14Waxing Gibbous29Tue
30Wed7:311.42:430.96:085:14Waxing Gibbous30Wed
31Thu7:291.63:400.76:095:13Full Moon31Thu
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