28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

82°
H 84°
L 82°
SE
16mph
High tide
12:19 am

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

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 9:55 am (0.5 ft)
Next high tide (tomorrow) : in 15h 38m at 12:19 am (1.4 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waning Gibbous (86% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 1910

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:161.74:490.66:095:13New Moon1Tue
2Wed8:331.85:320.56:105:12New Moon2Wed
3Thu8:581.96:150.36:115:11New Moon3Thu
4Fri9:281.97:010.36:125:10Waxing Crescent4Fri
5Sat10:041.97:520.26:125:10Waxing Crescent5Sat
6Sun10:441.98:490.26:135:09Waxing Crescent6Sun
7Mon11:301.99:470.26:145:08Waxing Crescent7Mon
8Tue10:430.26:155:08First Quarter8Tue
9Wed12:191.811:330.26:155:07First Quarter9Wed
10Thu1:141.712:160.36:165:06First Quarter10Thu
11Fri2:211.512:520.46:175:06First Quarter11Fri
12Sat4:081.310:051.01:150.66:185:05Waxing Gibbous12Sat
13Sun7:081.18:011.112:371.01:090.86:185:05Waxing Gibbous13Sun
14Mon7:191.32:300.76:195:04Waxing Gibbous14Mon
15Tue7:221.63:400.36:205:04Full Moon15Tue
16Wed7:491.94:440.06:215:03Full Moon16Wed
17Thu8:292.15:48-0.26:225:03Full Moon17Thu
18Fri9:162.26:54-0.46:225:02Waning Gibbous18Fri
19Sat10:072.28:01-0.46:235:02Waning Gibbous19Sat
20Sun11:002.09:10-0.46:245:02Waning Gibbous20Sun
21Mon11:521.910:15-0.36:255:01Waning Gibbous21Mon
22Tue11:12-0.16:265:01Third Quarter22Tue
23Wed12:411.611:580.16:275:01Third Quarter23Wed
24Thu1:211.312:240.36:275:00Third Quarter24Thu
25Fri1:021.09:050.912:160.56:285:00Waning Crescent25Fri
26Sat6:290.77:311.03:520.710:51 AM0.76:295:00Waning Crescent26Sat
27Sun7:001.23:330.56:305:00Waning Crescent27Sun
28Mon7:001.33:590.36:315:00Waning Crescent28Mon
29Tue7:141.44:290.16:315:00Waning Crescent29Tue
30Wed7:361.55:02-0.16:325:00New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Collapse All
Is this week a spring tide or neap tide in Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a spring phase. Tonight's moon is 86% 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 maximum.

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 (86% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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