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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 2:24 pm (-0.2 ft)
Next high tide (tomorrow) : in 10h 52m at 3:27 am (1.5 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:21 am
Moon phase : Third Quarter (54% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:341.92:58-0.16:357:19Third Quarter1Tue
2Wed4:481.93:510.06:357:18Waning Crescent2Wed
3Thu6:021.84:370.16:367:17Waning Crescent3Thu
4Fri7:111.85:150.26:367:16Waning Crescent4Fri
5Sat8:111.75:430.46:377:15Waning Crescent5Sat
6Sun9:041.55:580.66:377:14New Moon6Sun
7Mon9:541.45:550.76:387:12New Moon7Mon
8Tue10:481.311:311.05:270.96:387:11New Moon8Tue
9Wed11:571.111:071.24:180.94:231.06:397:10New Moon9Wed
10Thu11:121.46:010.86:397:09Waxing Crescent10Thu
11Fri11:331.57:340.76:407:08Waxing Crescent11Fri
12Sat9:080.66:407:06Waxing Crescent12Sat
13Sun12:051.710:380.56:417:05Waxing Crescent13Sun
14Mon12:461.811:550.46:417:04First Quarter14Mon
15Tue1:361.912:590.36:427:03First Quarter15Tue
16Wed2:371.91:560.26:437:02First Quarter16Wed
17Thu3:472.02:480.26:437:00First Quarter17Thu
18Fri5:052.03:360.26:446:59Waxing Gibbous18Fri
19Sat6:261.94:220.36:446:58Waxing Gibbous19Sat
20Sun7:491.85:030.56:456:57Waxing Gibbous20Sun
21Mon9:181.75:340.86:456:56Full Moon21Mon
22Tue11:031.510:061.25:291.16:466:54Full Moon22Tue
23Wed9:471.54:280.86:466:53Full Moon23Wed
24Thu10:151.86:190.56:476:52Full Moon24Thu
25Fri10:582.07:570.46:476:51Waning Gibbous25Fri
26Sat11:482.29:290.26:486:49Waning Gibbous26Sat
27Sun11:442.29:550.15:485:48Waning Gibbous27Sun
28Mon11:130.15:495:47Third Quarter28Mon
29Tue12:442.112:210.25:495:46Third Quarter29Tue
30Wed1:522.01:190.35:505:45Third Quarter30Wed
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 8:55 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 neap phase. Tonight's moon is 54% 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 Third Quarter (54% 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