28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H 87°
L 82°
NNW
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 3h 32m 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 - Feb 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:480.86:16-0.66:465:36New Moon1Sat
2Sun10:390.66:35-0.46:465:36Waxing Crescent2Sun
3Mon11:390.36:36-0.26:455:37Waxing Crescent3Mon
4Tue1:050.25:550.07:410.06:455:38Waxing Crescent4Tue
5Wed1:030.511:08-0.36:445:39Waxing Crescent5Wed
6Thu1:330.76:435:40First Quarter6Thu
7Fri2:200.912:27-0.56:435:40First Quarter7Fri
8Sat3:201.01:27-0.76:425:41First Quarter8Sat
9Sun4:261.02:21-0.86:415:42Waxing Gibbous9Sun
10Mon5:341.13:12-0.96:405:43Waxing Gibbous10Mon
11Tue6:391.03:59-0.86:405:44Waxing Gibbous11Tue
12Wed7:380.94:42-0.76:395:44Waxing Gibbous12Wed
13Thu8:300.85:16-0.66:385:45Full Moon13Thu
14Fri9:180.75:41-0.46:375:46Full Moon14Fri
15Sat10:030.55:50-0.26:375:47Full Moon15Sat
16Sun10:480.45:39-0.16:365:47Full Moon16Sun
17Mon11:560.211:420.25:040.05:110.16:355:48Waning Gibbous17Mon
18Tue11:490.43:560.17:270.06:345:49Waning Gibbous18Tue
19Wed12:040.510:06-0.16:335:50Waning Gibbous19Wed
20Thu12:320.611:41-0.26:325:50Waning Gibbous20Thu
21Fri1:110.86:315:51Third Quarter21Fri
22Sat2:010.812:38-0.36:305:52Third Quarter22Sat
23Sun3:000.91:26-0.46:295:52Third Quarter23Sun
24Mon4:050.92:10-0.56:285:53Third Quarter24Mon
25Tue5:121.02:51-0.56:275:54Waning Crescent25Tue
26Wed6:171.03:30-0.56:265:54Waning Crescent26Wed
27Thu7:201.04:05-0.56:255:55Waning Crescent27Thu
28Fri8:230.94:37-0.46:245:56Waning Crescent28Fri
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