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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 39m at 4:36 pm (-0.3 ft)
Next high tide (tomorrow) : 6:33 am (1.6 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:531.512:25-0.16:167:33First Quarter1Sat
2Sun2:361.31:080.16:157:33First Quarter2Sun
3Mon3:121.01:360.36:147:34First Quarter3Mon
4Tue11:360.91:420.56:147:34Waxing Gibbous4Tue
5Wed9:070.91:060.64:070.66:137:35Waxing Gibbous5Wed
6Thu8:141.04:400.46:127:36Waxing Gibbous6Thu
7Fri8:031.25:160.26:117:36Waxing Gibbous7Fri
8Sat8:141.45:530.06:117:37Full Moon8Sat
9Sun8:371.66:32-0.16:107:37Full Moon9Sun
10Mon9:071.77:14-0.26:097:38Full Moon10Mon
11Tue9:421.88:00-0.26:087:39Full Moon11Tue
12Wed10:211.88:50-0.36:087:39Waning Gibbous12Wed
13Thu11:031.89:43-0.36:077:40Waning Gibbous13Thu
14Fri11:481.810:35-0.36:067:41Waning Gibbous14Fri
15Sat12:341.711:25-0.26:067:41Waning Gibbous15Sat
16Sun1:221.66:057:42Third Quarter16Sun
17Mon2:091.412:090.06:057:42Third Quarter17Mon
18Tue2:511.012:400.26:047:43Third Quarter18Tue
19Wed9:110.912:430.53:110.76:047:44Waning Crescent19Wed
20Thu7:371.03:570.36:037:44Waning Crescent20Thu
21Fri7:171.34:47-0.16:037:45Waning Crescent21Fri
22Sat7:351.65:39-0.36:027:45Waning Crescent22Sat
23Sun8:111.96:32-0.56:027:46New Moon23Sun
24Mon8:532.07:26-0.66:017:47New Moon24Mon
25Tue9:392.08:19-0.56:017:47New Moon25Tue
26Wed10:262.09:12-0.46:017:48Waxing Crescent26Wed
27Thu11:111.810:01-0.36:007:48Waxing Crescent27Thu
28Fri11:531.710:43-0.16:007:49Waxing Crescent28Fri
29Sat12:291.511:140.06:007:49Waxing Crescent29Sat
30Sun12:551.311:290.25:597:50First Quarter30Sun
31Mon12:481.011:150.45:597:50First Quarter31Mon
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 11:34 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 Waxing Gibbous (79% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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