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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:08 pm (-0.6 ft)
Next high tide (tomorrow) : in 8h 15m at 6:28 am (2.0 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:161.811:390.36:095:12First Quarter1Fri
2Sat1:111.812:250.46:105:11First Quarter2Sat
3Sun2:171.61:030.56:115:11First Quarter3Sun
4Mon3:451.51:310.66:125:10Waxing Gibbous4Mon
5Tue5:531.39:251.11:450.86:125:09Waxing Gibbous5Tue
6Wed8:241.28:111.21:291.01:281.06:135:09Waxing Gibbous6Wed
7Thu7:481.42:590.76:145:08Full Moon7Thu
8Fri7:571.74:080.46:155:07Full Moon8Fri
9Sat8:251.95:130.26:165:07Full Moon9Sat
10Sun9:042.16:190.06:165:06Full Moon10Sun
11Mon9:502.27:28-0.26:175:06Waning Gibbous11Mon
12Tue10:412.28:39-0.26:185:05Waning Gibbous12Tue
13Wed11:342.09:49-0.26:195:04Waning Gibbous13Wed
14Thu10:54-0.16:195:04Third Quarter14Thu
15Fri12:291.911:520.06:205:03Third Quarter15Fri
16Sat1:241.612:360.26:215:03Third Quarter16Sat
17Sun2:181.31:010.56:225:03Third Quarter17Sun
18Mon4:021.08:461.012:500.76:235:02Waning Crescent18Mon
19Tue7:411.13:020.86:235:02Waning Crescent19Tue
20Wed7:251.33:450.56:245:01Waning Crescent20Wed
21Thu7:321.54:230.36:255:01New Moon21Thu
22Fri7:491.64:590.26:265:01New Moon22Fri
23Sat8:121.65:340.06:275:01New Moon23Sat
24Sun8:391.76:110.06:275:00New Moon24Sun
25Mon9:111.76:50-0.16:285:00New Moon25Mon
26Tue9:451.77:34-0.16:295:00Waxing Crescent26Tue
27Wed10:231.78:21-0.16:305:00Waxing Crescent27Wed
28Thu11:021.69:09-0.16:315:00Waxing Crescent28Thu
29Fri11:411.59:55-0.16:315:00Waxing Crescent29Fri
30Sat10:360.06:325:00First Quarter30Sat
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 11:48 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 22% 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 Crescent (22% 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