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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:17 pm (-0.4 ft)
Next high tide (tomorrow) : in 9h 25m at 4:18 am (1.7 ft)
Sunset today : 7:45 pm
Sunrise tomorrow : 6:21 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:180.99:500.36:038:00Third Quarter1Mon
2Tue7:510.88:050.46:038:00Third Quarter2Tue
3Wed6:070.93:310.26:048:00Third Quarter3Wed
4Thu5:491.23:41-0.16:048:00Waning Crescent4Thu
5Fri6:061.44:20-0.46:058:00Waning Crescent5Fri
6Sat6:431.75:09-0.66:058:00Waning Crescent6Sat
7Sun7:311.96:02-0.86:058:00Waning Crescent7Sun
8Mon8:252.06:59-0.86:067:59New Moon8Mon
9Tue9:222.07:55-0.86:067:59New Moon9Tue
10Wed10:181.98:50-0.66:077:59New Moon10Wed
11Thu11:111.89:37-0.46:077:59Waxing Crescent11Thu
12Fri11:581.510:12-0.16:087:58Waxing Crescent12Fri
13Sat12:351.210:160.26:087:58Waxing Crescent13Sat
14Sun12:330.89:080.46:097:58First Quarter14Sun
15Mon6:150.75:070.46:107:57First Quarter15Mon
16Tue5:011.03:250.26:107:57First Quarter16Tue
17Wed5:041.23:420.06:117:57First Quarter17Wed
18Thu5:291.44:11-0.26:117:56Waxing Gibbous18Thu
19Fri6:031.54:45-0.36:127:56Waxing Gibbous19Fri
20Sat6:441.65:21-0.36:127:55Waxing Gibbous20Sat
21Sun7:271.65:59-0.46:137:55Waxing Gibbous21Sun
22Mon8:121.66:38-0.36:137:54Full Moon22Mon
23Tue8:551.67:15-0.36:147:54Full Moon23Tue
24Wed9:351.67:48-0.36:147:53Full Moon24Wed
25Thu10:121.68:15-0.26:157:53Full Moon25Thu
26Fri10:461.58:360.06:167:52Waning Gibbous26Fri
27Sat11:191.38:460.16:167:52Waning Gibbous27Sat
28Sun11:491.18:390.36:177:51Waning Gibbous28Sun
29Mon12:090.97:580.56:177:50Waning Gibbous29Mon
30Tue4:400.85:340.56:187:50Third Quarter30Tue
31Wed3:521.02:040.36:187:49Third Quarter31Wed
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 9:47 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 43% 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 (43% 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