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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:09 pm (0.0 ft)
Next high tide (tomorrow) : in 8h 58m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:371.34:18-0.86:515:11Waning Crescent1Sat
2Sun7:251.35:02-0.96:515:12New Moon2Sun
3Mon8:101.25:43-0.86:515:12New Moon3Mon
4Tue8:511.16:20-0.76:515:13New Moon4Tue
5Wed9:281.06:53-0.66:515:14New Moon5Wed
6Thu10:000.97:18-0.56:525:15Waxing Crescent6Thu
7Fri10:270.77:33-0.46:525:15Waxing Crescent7Fri
8Sat10:430.57:34-0.26:525:16Waxing Crescent8Sat
9Sun10:070.37:11-0.16:525:17Waxing Crescent9Sun
10Mon3:260.36:080.06:525:18First Quarter10Mon
11Tue3:050.54:040.06:525:18First Quarter11Tue
12Wed3:220.62:22-0.26:525:19First Quarter12Wed
13Thu3:560.82:19-0.46:525:20First Quarter13Thu
14Fri4:390.92:43-0.66:525:21Waxing Gibbous14Fri
15Sat5:281.03:16-0.76:525:22Waxing Gibbous15Sat
16Sun6:191.13:54-0.86:515:22Waxing Gibbous16Sun
17Mon7:101.24:34-0.96:515:23Waxing Gibbous17Mon
18Tue8:011.25:15-0.96:515:24Full Moon18Tue
19Wed8:521.15:57-0.96:515:25Full Moon19Wed
20Thu9:431.06:36-0.86:515:26Full Moon20Thu
21Fri10:340.87:11-0.66:505:27Waning Gibbous21Fri
22Sat11:290.57:30-0.46:505:28Waning Gibbous22Sat
23Sun2:370.17:11-0.16:270.16:505:28Waning Gibbous23Sun
24Mon12:410.11:400.45:040.111:42-0.26:495:29Waning Gibbous24Mon
25Tue1:560.66:495:30Third Quarter25Tue
26Wed2:380.812:50-0.56:495:31Third Quarter26Wed
27Thu3:321.01:45-0.76:485:32Third Quarter27Thu
28Fri4:321.02:36-0.96:485:33Waning Crescent28Fri
29Sat5:331.13:24-0.96:475:33Waning Crescent29Sat
30Sun6:321.04:09-0.96:475:34Waning Crescent30Sun
31Mon7:251.04:49-0.86:465:35Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 11:00 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 58% 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 First Quarter (58% 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