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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 43m at 4:13 pm (0.3 ft)
Next high tide (tomorrow) : 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 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:001.12:48-0.56:515:11Waxing Gibbous1Wed
2Thu5:401.33:31-0.86:515:12Waxing Gibbous2Thu
3Fri6:261.44:15-0.96:515:13Waxing Gibbous3Fri
4Sat7:141.45:01-1.06:515:13Full Moon4Sat
5Sun8:011.45:45-1.06:515:14Full Moon5Sun
6Mon8:461.36:29-0.96:525:15Full Moon6Mon
7Tue9:271.27:09-0.86:525:16Full Moon7Tue
8Wed10:041.07:45-0.76:525:16Waning Gibbous8Wed
9Thu10:360.98:15-0.66:525:17Waning Gibbous9Thu
10Fri11:020.78:34-0.46:525:18Waning Gibbous10Fri
11Sat11:120.58:35-0.26:525:19Waning Gibbous11Sat
12Sun7:590.27:57-0.16:525:20Third Quarter12Sun
13Mon3:520.36:070.06:525:20Third Quarter13Mon
14Tue3:330.52:50-0.16:525:21Third Quarter14Tue
15Wed3:510.72:13-0.36:515:22Third Quarter15Wed
16Thu4:270.92:33-0.66:515:23Waning Crescent16Thu
17Fri5:131.13:06-0.86:515:24Waning Crescent17Fri
18Sat6:041.23:47-0.96:515:24Waning Crescent18Sat
19Sun6:581.34:31-1.06:515:25Waning Crescent19Sun
20Mon7:521.35:18-1.16:505:26New Moon20Mon
21Tue8:451.36:07-1.16:505:27New Moon21Tue
22Wed9:381.26:55-1.06:505:28New Moon22Wed
23Thu10:301.07:40-0.96:495:29Waxing Crescent23Thu
24Fri11:220.78:18-0.66:495:30Waxing Crescent24Fri
25Sat8:35-0.36:495:30Waxing Crescent25Sat
26Sun12:190.42:490.27:380.010:520.06:485:31Waxing Crescent26Sun
27Mon2:090.56:485:32First Quarter27Mon
28Tue2:350.812:45-0.46:475:33First Quarter28Tue
29Wed3:221.01:39-0.76:475:34First Quarter29Wed
30Thu4:171.12:30-0.96:465:35Waxing Gibbous30Thu
31Fri5:171.23:19-1.06:465:35Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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 11:02 pm — 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