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

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2h 57m at 7:26 pm (-0.4 ft)
Next high tide (tomorrow) : 9:37 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:071.55:19-0.36:038:00Waxing Gibbous1Fri
2Sat7:481.65:56-0.46:038:00Waxing Gibbous2Sat
3Sun8:311.76:37-0.56:038:00Full Moon3Sun
4Mon9:171.77:19-0.56:048:00Full Moon4Mon
5Tue10:031.78:01-0.46:048:00Full Moon5Tue
6Wed10:491.58:38-0.26:058:00Waning Gibbous6Wed
7Thu11:331.39:060.06:058:00Waning Gibbous7Thu
8Fri12:111.19:100.26:067:59Waning Gibbous8Fri
9Sat12:000.88:170.46:067:59Third Quarter9Sat
10Sun5:180.84:060.46:077:59Third Quarter10Sun
11Mon4:481.03:020.16:077:59Third Quarter11Mon
12Tue5:051.23:34-0.16:077:59Third Quarter12Tue
13Wed5:411.44:15-0.36:087:58Waning Crescent13Wed
14Thu6:251.54:57-0.36:097:58Waning Crescent14Thu
15Fri7:111.65:37-0.46:097:58Waning Crescent15Fri
16Sat7:561.66:14-0.36:107:57Waning Crescent16Sat
17Sun8:391.56:47-0.36:107:57New Moon17Sun
18Mon9:181.57:15-0.26:117:57New Moon18Mon
19Tue9:531.47:38-0.16:117:56New Moon19Tue
20Wed10:261.37:540.16:127:56New Moon20Wed
21Thu10:551.28:000.26:127:55Waxing Crescent21Thu
22Fri11:181.07:510.36:137:55Waxing Crescent22Fri
23Sat11:270.97:210.46:137:54Waxing Crescent23Sat
24Sun4:460.76:180.56:147:54Waxing Crescent24Sun
25Mon3:520.94:290.46:157:53First Quarter25Mon
26Tue3:581.03:120.36:157:53First Quarter26Tue
27Wed4:241.23:150.16:167:52First Quarter27Wed
28Thu5:031.33:41-0.16:167:51First Quarter28Thu
29Fri5:491.54:16-0.26:177:51Waxing Gibbous29Fri
30Sat6:401.64:55-0.36:177:50Waxing Gibbous30Sat
31Sun7:331.75:36-0.36:187:49Waxing Gibbous31Sun
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 2:31 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 spring phase. Tonight's moon is 100% 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 (100% 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