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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 1:02 pm (0.4 ft)
Next high tide (tomorrow) : in 5h 14m at 2:43 am (1.0 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:131.212:28-0.76:235:57First Quarter1Tue
2Wed3:261.21:32-0.76:225:57First Quarter2Wed
3Thu4:471.22:29-0.76:215:58Waxing Gibbous3Thu
4Fri6:071.13:21-0.66:205:59Waxing Gibbous4Fri
5Sat7:221.04:05-0.56:195:59Waxing Gibbous5Sat
6Sun8:320.84:39-0.36:186:00Waxing Gibbous6Sun
7Mon9:410.74:560.06:166:00Full Moon7Mon
8Tue10:490.311:000.54:440.23:060.26:156:01Full Moon8Tue
9Wed10:100.53:490.34:520.16:146:02Full Moon9Wed
10Thu10:120.76:180.06:136:02Waning Gibbous10Thu
11Fri10:300.87:39-0.16:126:03Waning Gibbous11Fri
12Sat10:570.99:01-0.16:116:04Waning Gibbous12Sat
13Sun11:311.010:21-0.26:106:04Waning Gibbous13Sun
14Mon12:131.111:33-0.26:096:05Third Quarter14Mon
15Tue1:031.16:076:05Third Quarter15Tue
16Wed2:021.112:34-0.36:066:06Third Quarter16Wed
17Thu3:121.11:27-0.36:056:06Third Quarter17Thu
18Fri4:271.12:13-0.36:046:07Waning Crescent18Fri
19Sat5:451.02:51-0.26:036:08Waning Crescent19Sat
20Sun7:031.03:23-0.16:026:08Waning Crescent20Sun
21Mon8:230.93:470.16:006:09Waning Crescent21Mon
22Tue10:220.49:570.73:570.21:360.35:596:09New Moon22Tue
23Wed9:180.63:390.43:350.25:586:10New Moon23Wed
24Thu9:080.85:060.05:576:11New Moon24Thu
25Fri9:261.16:32-0.15:566:11New Moon25Fri
26Sat10:011.37:57-0.35:556:12Waxing Crescent26Sat
27Sun10:451.59:23-0.45:536:12Waxing Crescent27Sun
28Mon11:361.510:44-0.45:526:13Waxing Crescent28Mon
29Tue12:341.511:56-0.45:516:13First Quarter29Tue
30Wed1:401.55:506:14First Quarter30Wed
31Thu2:541.31:00-0.35:496:14First Quarter31Thu
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 7:52 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 75% 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 Waning Gibbous (75% 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