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

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:34 pm (-0.3 ft)
Next high tide (tomorrow) : in 12h 09m at 5:09 am (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (40% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:141.110:090.810:570.46:344:59Third Quarter1Thu
2Fri7:070.810:010.56:344:59Third Quarter2Fri
3Sat6:031.03:400.56:354:59Waning Crescent3Sat
4Sun5:531.23:140.26:364:59Waning Crescent4Sun
5Mon6:081.33:350.06:375:00Waning Crescent5Mon
6Tue6:361.54:07-0.26:375:00Waning Crescent6Tue
7Wed7:111.64:44-0.46:385:00New Moon7Wed
8Thu7:511.75:26-0.56:395:00New Moon8Thu
9Fri8:351.76:12-0.66:395:00New Moon9Fri
10Sat9:201.77:02-0.66:405:00New Moon10Sat
11Sun10:071.77:53-0.66:415:01Waxing Crescent11Sun
12Mon10:521.68:43-0.66:415:01Waxing Crescent12Mon
13Tue11:361.39:30-0.56:425:01Waxing Crescent13Tue
14Wed10:07-0.26:435:02First Quarter14Wed
15Thu12:121.011:100.610:240.06:435:02First Quarter15Thu
16Fri6:080.69:350.36:445:02First Quarter16Fri
17Sat5:040.92:190.26:455:03First Quarter17Sat
18Sun5:081.22:38-0.26:455:03Waxing Gibbous18Sun
19Mon5:381.43:19-0.56:465:04Waxing Gibbous19Mon
20Tue6:201.54:04-0.76:465:04Waxing Gibbous20Tue
21Wed7:061.64:52-0.96:475:05Full Moon21Wed
22Thu7:541.65:39-0.96:475:05Full Moon22Thu
23Fri8:401.56:27-0.86:485:06Full Moon23Fri
24Sat9:241.47:12-0.86:485:06Full Moon24Sat
25Sun10:031.37:53-0.76:495:07Waning Gibbous25Sun
26Mon10:371.18:29-0.56:495:07Waning Gibbous26Mon
27Tue11:040.98:55-0.46:495:08Waning Gibbous27Tue
28Wed11:170.79:06-0.26:505:08Waning Gibbous28Wed
29Thu10:110.48:480.06:505:09Third Quarter29Thu
30Fri5:160.47:290.16:505:10Third Quarter30Fri
31Sat4:160.64:100.16:515:10Third Quarter31Sat
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 10:21 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 neap phase. Tonight's moon is 40% 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 minimum.

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 Third Quarter (40% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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