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 11h 45m 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 - Oct 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:071.92:070.45:505:44Third Quarter1Thu
2Fri4:301.82:440.65:515:42Waning Crescent2Fri
3Sat5:551.63:060.85:515:41Waning Crescent3Sat
4Sun7:191.510:321.13:090.95:525:40Waning Crescent4Sun
5Mon8:471.38:541.212:491.12:421.15:525:39Waning Crescent5Mon
6Tue10:451.28:261.42:481.01:201.25:535:38New Moon6Tue
7Wed8:271.63:590.95:545:37New Moon7Wed
8Thu8:431.74:580.75:545:35New Moon8Thu
9Fri9:091.85:540.65:555:34New Moon9Fri
10Sat9:411.96:510.55:555:33Waxing Crescent10Sat
11Sun10:192.07:530.55:565:32Waxing Crescent11Sun
12Mon11:032.19:000.45:565:31Waxing Crescent12Mon
13Tue11:542.110:070.35:575:30Waxing Crescent13Tue
14Wed11:090.35:585:29First Quarter14Wed
15Thu12:522.112:050.35:585:28First Quarter15Thu
16Fri1:592.012:550.35:595:27First Quarter16Fri
17Sat3:231.81:400.56:005:26Waxing Gibbous17Sat
18Sun5:141.72:140.76:005:25Waxing Gibbous18Sun
19Mon7:351.58:261.22:251.06:015:24Waxing Gibbous19Mon
20Tue10:491.37:291.42:010.91:101.36:015:23Waxing Gibbous20Tue
21Wed7:321.83:340.66:025:22Full Moon21Wed
22Thu8:032.04:490.36:035:21Full Moon22Thu
23Fri8:452.25:590.16:035:20Full Moon23Fri
24Sat9:332.37:090.06:045:19Waning Gibbous24Sat
25Sun10:232.38:200.06:055:18Waning Gibbous25Sun
26Mon11:152.29:300.06:055:17Waning Gibbous26Mon
27Tue10:360.16:065:16Third Quarter27Tue
28Wed12:072.011:330.36:075:15Third Quarter28Wed
29Thu12:591.812:200.46:085:14Third Quarter29Thu
30Fri1:521.612:520.66:085:14Third Quarter30Fri
31Sat2:561.41:040.86:095:13Waning Crescent31Sat
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