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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 23m at 2:24 pm (-0.2 ft)
Next high tide (tomorrow) : 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 - Oct 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:011.64:040.85:505:44New Moon1Mon
2Tue9:231.85:300.65:515:43New Moon2Tue
3Wed9:572.06:530.55:515:42Waxing Crescent3Wed
4Thu10:412.28:150.35:525:41Waxing Crescent4Thu
5Fri11:342.39:370.25:525:39Waxing Crescent5Fri
6Sat10:550.15:535:38First Quarter6Sat
7Sun12:362.312:060.15:535:37First Quarter7Sun
8Mon1:472.21:090.15:545:36First Quarter8Mon
9Tue3:102.12:030.25:545:35Waxing Gibbous9Tue
10Wed4:441.92:490.55:555:34Waxing Gibbous10Wed
11Thu6:271.73:190.75:565:33Waxing Gibbous11Thu
12Fri8:211.59:101.23:151.05:565:32Waxing Gibbous12Fri
13Sat10:561.38:141.42:301.01:431.35:575:30Full Moon13Sat
14Sun8:151.74:060.75:575:29Full Moon14Sun
15Mon8:361.95:160.65:585:28Full Moon15Mon
16Tue9:052.06:150.45:595:27Full Moon16Tue
17Wed9:372.17:110.35:595:26Waning Gibbous17Wed
18Thu10:142.18:080.36:005:25Waning Gibbous18Thu
19Fri10:562.19:080.36:005:24Waning Gibbous19Fri
20Sat11:442.010:120.36:015:23Waning Gibbous20Sat
21Sun11:130.36:025:22Third Quarter21Sun
22Mon12:371.912:080.46:025:21Third Quarter22Mon
23Tue1:371.812:530.56:035:20Third Quarter23Tue
24Wed2:451.71:280.66:045:19Third Quarter24Wed
25Thu4:111.51:490.76:045:18Waning Crescent25Thu
26Fri6:061.49:071.11:480.96:055:17Waning Crescent26Fri
27Sat8:291.27:491.31:211.01:061.16:065:17Waning Crescent27Sat
28Sun7:311.52:530.86:065:16Waning Crescent28Sun
29Mon7:421.73:580.66:075:15New Moon29Mon
30Tue8:092.04:580.36:085:14New Moon30Tue
31Wed8:472.26:000.16:095:13New Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 9:21 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 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