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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:21 pm (0.5 ft)
Next high tide : in 9h 15m at 11:53 am (1.0 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:241.58:100.06:157:33Waxing Crescent1Mon
2Tue10:581.69:03-0.16:147:34Waxing Crescent2Tue
3Wed11:361.69:59-0.16:147:35Waxing Crescent3Wed
4Thu12:181.610:56-0.16:137:35Waxing Crescent4Thu
5Fri1:031.511:510.06:127:36First Quarter5Fri
6Sat1:501.46:117:36First Quarter6Sat
7Sun2:381.212:390.16:117:37First Quarter7Sun
8Mon12:570.91:170.36:107:38First Quarter8Mon
9Tue9:500.99:270.81:330.53:350.76:097:38Waxing Gibbous9Tue
10Wed8:521.012:570.74:250.46:087:39Waxing Gibbous10Wed
11Thu8:351.25:160.26:087:40Waxing Gibbous11Thu
12Fri8:451.46:070.06:077:40Full Moon12Fri
13Sat9:101.66:56-0.16:077:41Full Moon13Sat
14Sun9:421.67:45-0.26:067:41Full Moon14Sun
15Mon10:181.78:33-0.26:057:42Waning Gibbous15Mon
16Tue10:531.79:18-0.16:057:43Waning Gibbous16Tue
17Wed11:281.610:010.06:047:43Waning Gibbous17Wed
18Thu12:011.510:400.16:047:44Waning Gibbous18Thu
19Fri12:291.311:130.26:037:44Third Quarter19Fri
20Sat12:481.211:370.36:037:45Third Quarter20Sat
21Sun12:321.011:440.46:027:46Third Quarter21Sun
22Mon10:350.911:210.56:027:46Third Quarter22Mon
23Tue8:550.98:220.66:027:47Waning Crescent23Tue
24Wed8:121.04:540.46:017:47Waning Crescent24Wed
25Thu8:011.15:060.36:017:48Waning Crescent25Thu
26Fri8:091.35:320.16:007:49Waning Crescent26Fri
27Sat8:301.46:050.06:007:49New Moon27Sat
28Sun8:571.56:42-0.16:007:50New Moon28Sun
29Mon9:291.67:23-0.26:007:50New Moon29Mon
30Tue10:041.78:07-0.25:597:51New Moon30Tue
31Wed10:421.78:54-0.35:597:51Waxing Crescent31Wed
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 3:37 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 spring phase. Tonight's moon is 84% 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 maximum.

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 (84% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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