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 1h 19m 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 - May 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:260.92:000.74:190.66:157:33Waxing Gibbous1Thu
2Fri8:481.15:070.46:157:34Waxing Gibbous2Fri
3Sat8:431.35:490.26:147:34Full Moon3Sat
4Sun8:561.46:300.06:137:35Full Moon4Sun
5Mon9:181.67:12-0.16:127:36Full Moon5Mon
6Tue9:481.77:58-0.26:117:36Full Moon6Tue
7Wed10:231.88:49-0.26:117:37Waning Gibbous7Wed
8Thu11:021.89:44-0.36:107:37Waning Gibbous8Thu
9Fri11:471.810:42-0.36:097:38Waning Gibbous9Fri
10Sat12:351.811:38-0.36:097:39Waning Gibbous10Sat
11Sun1:271.76:087:39Third Quarter11Sun
12Mon2:231.512:30-0.26:077:40Third Quarter12Mon
13Tue3:301.31:150.06:077:41Third Quarter13Tue
14Wed5:541.01:470.26:067:41Waning Crescent14Wed
15Thu9:210.91:490.53:190.66:057:42Waning Crescent15Thu
16Fri8:061.14:280.26:057:42Waning Crescent16Fri
17Sat7:561.45:27-0.16:047:43Waning Crescent17Sat
18Sun8:181.76:24-0.46:047:44New Moon18Sun
19Mon8:551.97:21-0.56:037:44New Moon19Mon
20Tue9:392.08:18-0.66:037:45New Moon20Tue
21Wed10:252.09:16-0.56:027:45Waxing Crescent21Wed
22Thu11:121.910:12-0.46:027:46Waxing Crescent22Thu
23Fri11:581.811:03-0.36:027:47Waxing Crescent23Fri
24Sat12:411.611:47-0.16:017:47Waxing Crescent24Sat
25Sun1:171.46:017:48First Quarter25Sun
26Mon1:391.212:180.16:007:48First Quarter26Mon
27Tue12:501.012:300.36:007:49First Quarter27Tue
28Wed9:330.912:080.510:010.66:007:49First Quarter28Wed
29Thu8:011.04:430.46:007:50Waxing Gibbous29Thu
30Fri7:311.14:550.25:597:50Waxing Gibbous30Fri
31Sat7:331.35:220.05:597:51Waxing Gibbous31Sat
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