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

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 45m at 8:44 pm (-0.5 ft)
Next high tide (tomorrow) : 11:16 am (1.6 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:072.18:390.07:106:11Waning Gibbous1Fri
2Sat11:552.09:470.17:116:11Waning Gibbous2Sat
3Sun11:431.99:520.16:125:10Waning Gibbous3Sun
4Mon10:500.36:125:09Third Quarter4Mon
5Tue12:281.711:360.46:135:08Third Quarter5Tue
6Wed1:041.412:040.66:145:08Third Quarter6Wed
7Thu12:181.28:481.112:030.86:155:07Third Quarter7Thu
8Fri6:431.07:311.23:151.011:04 AM0.96:155:06Waning Crescent8Fri
9Sat7:071.33:150.86:165:06Waning Crescent9Sat
10Sun7:091.43:430.66:175:05Waning Crescent10Sun
11Mon7:241.54:150.46:185:05Waning Crescent11Mon
12Tue7:461.64:480.36:195:04New Moon12Tue
13Wed8:121.75:220.26:195:04New Moon13Wed
14Thu8:411.75:590.26:205:03New Moon14Thu
15Fri9:131.76:380.26:215:03New Moon15Fri
16Sat9:471.77:190.16:225:02Waxing Crescent16Sat
17Sun10:211.78:010.16:235:02Waxing Crescent17Sun
18Mon10:571.68:430.16:235:02Waxing Crescent18Mon
19Tue11:311.59:230.26:245:01Waxing Crescent19Tue
20Wed9:590.36:255:01First Quarter20Wed
21Thu12:031.311:591.110:270.46:265:01First Quarter21Thu
22Fri8:051.010:390.56:275:00First Quarter22Fri
23Sat6:441.010:070.76:275:00Waxing Gibbous23Sat
24Sun6:231.22:290.56:285:00Waxing Gibbous24Sun
25Mon6:321.43:060.26:295:00Waxing Gibbous25Mon
26Tue7:011.63:530.06:305:00Waxing Gibbous26Tue
27Wed7:401.84:45-0.36:314:59Full Moon27Wed
28Thu8:241.85:39-0.46:314:59Full Moon28Thu
29Fri9:101.86:35-0.46:324:59Full Moon29Fri
30Sat9:561.77:32-0.46:334:59Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 4:00 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 spring phase. Tonight's moon is 2% 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 New Moon (2% 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