28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H 87°
L 82°
NW
5mph
High tide
8:50 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 6:27 pm (0.2 ft)
Next high tide : in 5h 15m at 8:50 am (1.7 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:581.16:50-0.16:487:15New Moon1Tue
2Wed10:301.38:11-0.26:477:15Waxing Crescent2Wed
3Thu11:121.59:33-0.36:467:16Waxing Crescent3Thu
4Fri12:011.610:53-0.36:447:17Waxing Crescent4Fri
5Sat12:541.66:437:17Waxing Crescent5Sat
6Sun1:521.512:08-0.36:427:18First Quarter6Sun
7Mon2:551.41:13-0.26:417:18First Quarter7Mon
8Tue4:081.22:08-0.16:407:19First Quarter8Tue
9Wed5:471.02:500.16:397:19Waxing Gibbous9Wed
10Thu7:560.83:140.36:387:20Waxing Gibbous10Thu
11Fri10:350.710:120.73:120.53:200.66:367:21Waxing Gibbous11Fri
12Sat9:330.82:290.64:310.46:357:21Waxing Gibbous12Sat
13Sun9:171.05:220.36:347:22Full Moon13Sun
14Mon9:221.16:060.26:337:22Full Moon14Mon
15Tue9:381.26:480.16:327:23Full Moon15Tue
16Wed10:011.37:320.16:317:23Full Moon16Wed
17Thu10:291.48:200.06:307:24Waning Gibbous17Thu
18Fri11:011.59:130.06:297:25Waning Gibbous18Fri
19Sat11:381.510:080.06:287:25Waning Gibbous19Sat
20Sun12:181.511:040.06:277:26Waning Gibbous20Sun
21Mon1:021.511:560.06:267:26Third Quarter21Mon
22Tue1:511.46:257:27Third Quarter22Tue
23Wed2:471.312:420.16:247:27Third Quarter23Wed
24Thu4:081.11:220.26:237:28Third Quarter24Thu
25Fri6:440.91:520.46:227:29Waning Crescent25Fri
26Sat9:280.810:110.82:040.52:510.66:217:29Waning Crescent26Sat
27Sun8:351.01:270.84:060.36:207:30Waning Crescent27Sun
28Mon8:261.25:100.16:197:30New Moon28Mon
29Tue8:451.56:12-0.16:187:31New Moon29Tue
30Wed9:201.77:15-0.36:177:32New Moon30Wed
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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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