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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 8:33 pm (-0.3 ft)
Next high tide : in 2h 36m at 10:14 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:361.41:35-0.16:157:33First Quarter1Tue
2Wed5:201.22:230.16:157:34Waxing Gibbous2Wed
3Thu8:061.02:560.36:147:34Waxing Gibbous3Thu
4Fri10:090.93:000.63:550.66:137:35Waxing Gibbous4Fri
5Sat9:111.05:070.36:127:35Waxing Gibbous5Sat
6Sun9:011.36:050.16:117:36Full Moon6Sun
7Mon9:181.56:58-0.16:117:37Full Moon7Mon
8Tue9:451.67:48-0.16:107:37Full Moon8Tue
9Wed10:171.78:37-0.26:097:38Waning Gibbous9Wed
10Thu10:511.79:25-0.26:097:39Waning Gibbous10Thu
11Fri11:271.710:15-0.16:087:39Waning Gibbous11Fri
12Sat12:051.611:04-0.16:077:40Waning Gibbous12Sat
13Sun12:441.511:520.06:077:40Third Quarter13Sun
14Mon1:231.46:067:41Third Quarter14Mon
15Tue2:001.212:330.16:057:42Third Quarter15Tue
16Wed2:241.11:050.36:057:42Third Quarter16Wed
17Thu12:000.91:200.46:047:43Waning Crescent17Thu
18Fri9:350.99:180.71:070.64:140.76:047:43Waning Crescent18Fri
19Sat8:411.04:370.46:037:44Waning Crescent19Sat
20Sun8:261.25:130.26:037:45Waning Crescent20Sun
21Mon8:341.45:530.06:027:45New Moon21Mon
22Tue8:561.56:39-0.26:027:46New Moon22Tue
23Wed9:261.77:28-0.36:027:46New Moon23Wed
24Thu10:031.88:22-0.46:017:47New Moon24Thu
25Fri10:461.99:20-0.46:017:48Waxing Crescent25Fri
26Sat11:311.910:18-0.46:007:48Waxing Crescent26Sat
27Sun12:191.811:15-0.36:007:49Waxing Crescent27Sun
28Mon1:071.66:007:49First Quarter28Mon
29Tue1:491.412:04-0.16:007:50First Quarter29Tue
30Wed1:551.112:410.15:597:50First Quarter30Wed
31Thu10:180.912:530.411:560.65:597:51Waxing Gibbous31Thu
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 3:23 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 spring phase. Tonight's moon is 97% 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 (97% 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