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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 00m at 9:17 pm (-0.1 ft)
Next high tide (tomorrow) : 11:47 am (1.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:190.86:580.66:197:48Third Quarter1Tue
2Wed4:360.94:060.56:197:48Third Quarter2Wed
3Thu4:241.03:080.36:207:47Third Quarter3Thu
4Fri4:431.23:230.26:217:46Third Quarter4Fri
5Sat5:171.33:530.06:217:45Waning Crescent5Sat
6Sun5:591.44:280.06:227:44Waning Crescent6Sun
7Mon6:461.55:06-0.16:227:44Waning Crescent7Mon
8Tue7:341.65:43-0.16:237:43Waning Crescent8Tue
9Wed8:201.76:20-0.16:237:42New Moon9Wed
10Thu9:061.76:56-0.16:247:41New Moon10Thu
11Fri9:521.67:310.06:257:40New Moon11Fri
12Sat10:371.68:010.16:257:39New Moon12Sat
13Sun11:241.48:210.36:267:38Waxing Crescent13Sun
14Mon12:151.28:180.56:267:37Waxing Crescent14Mon
15Tue1:200.97:110.76:277:36Waxing Crescent15Tue
16Wed3:011.011:410.66:277:35First Quarter16Wed
17Thu3:001.21:190.36:287:34First Quarter17Thu
18Fri3:331.42:170.16:287:33First Quarter18Fri
19Sat4:231.63:11-0.16:297:32First Quarter19Sat
20Sun5:221.84:03-0.26:297:31Waxing Gibbous20Sun
21Mon6:251.84:53-0.26:307:30Waxing Gibbous21Mon
22Tue7:271.85:40-0.16:307:29Waxing Gibbous22Tue
23Wed8:251.86:220.06:317:28Full Moon23Wed
24Thu9:181.76:580.26:327:27Full Moon24Thu
25Fri10:061.67:230.46:327:26Full Moon25Fri
26Sat10:511.47:320.56:337:25Full Moon26Sat
27Sun11:331.37:180.76:337:24Waning Gibbous27Sun
28Mon12:191.16:290.86:347:23Waning Gibbous28Mon
29Tue1:261.01:280.97:130.84:400.96:347:22Waning Gibbous29Tue
30Wed1:211.210:320.76:357:21Waning Gibbous30Wed
31Thu1:401.312:260.66:357:19Third Quarter31Thu
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 4:32 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 88% 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 Waning Gibbous (88% 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