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

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:16 pm (-0.3 ft)
Next high tide (tomorrow) : in 9h 44m at 6:33 am (1.6 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:081.65:500.86:506:44New Moon1Thu
2Fri10:321.87:000.76:516:42Waxing Crescent2Fri
3Sat11:051.98:090.56:516:41Waxing Crescent3Sat
4Sun11:452.09:220.46:526:40Waxing Crescent4Sun
5Mon10:360.36:526:39Waxing Crescent5Mon
6Tue12:332.111:480.26:536:38First Quarter6Tue
7Wed1:312.212:540.26:536:37First Quarter7Wed
8Thu2:382.11:530.26:546:36First Quarter8Thu
9Fri3:572.12:470.26:556:34First Quarter9Fri
10Sat5:301.93:340.46:556:33Waxing Gibbous10Sat
11Sun7:161.84:120.76:566:32Waxing Gibbous11Sun
12Mon9:181.59:591.14:251.06:566:31Waxing Gibbous12Mon
13Tue12:071.43:150.93:091.36:576:30Full Moon13Tue
14Wed9:021.85:000.66:586:29Full Moon14Wed
15Thu9:332.06:210.46:586:28Full Moon15Thu
16Fri10:142.27:340.26:596:27Waning Gibbous16Fri
17Sat10:582.28:440.16:596:26Waning Gibbous17Sat
18Sun11:452.29:540.17:006:25Waning Gibbous18Sun
19Mon11:020.27:016:24Waning Gibbous19Mon
20Tue12:352.112:050.27:016:23Third Quarter20Tue
21Wed1:282.01:020.37:026:22Third Quarter21Wed
22Thu2:251.91:490.47:036:21Third Quarter22Thu
23Fri3:301.72:260.67:036:20Third Quarter23Fri
24Sat4:521.52:490.77:046:19Waning Crescent24Sat
25Sun5:471.49:351.21:510.96:055:18Waning Crescent25Sun
26Mon8:071.28:001.31:211.11:101.16:055:17Waning Crescent26Mon
27Tue7:321.42:500.96:065:16Waning Crescent27Tue
28Wed7:351.63:480.76:075:15New Moon28Wed
29Thu7:541.84:380.56:075:15New Moon29Thu
30Fri8:221.95:260.46:085:14New Moon30Fri
31Sat8:572.06:170.26:095:13New Moon31Sat
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 11:54 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 Waxing Gibbous (79% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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