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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 7h 53m at 4:13 pm (0.3 ft)
Next high tide (tomorrow) : 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:070.910:160.36:334:59First Quarter1Thu
2Fri7:420.89:430.56:344:59First Quarter2Fri
3Sat6:060.97:000.56:354:59First Quarter3Sat
4Sun5:421.03:230.46:354:59Waxing Gibbous4Sun
5Mon5:491.23:200.26:364:59Waxing Gibbous5Mon
6Tue6:101.33:420.06:375:00Waxing Gibbous6Tue
7Wed6:391.44:12-0.26:385:00Waxing Gibbous7Wed
8Thu7:131.54:46-0.36:385:00Full Moon8Thu
9Fri7:501.55:22-0.36:395:00Full Moon9Fri
10Sat8:271.55:59-0.46:405:00Full Moon10Sat
11Sun9:041.56:37-0.46:405:00Full Moon11Sun
12Mon9:411.57:15-0.46:415:01Waning Gibbous12Mon
13Tue10:181.47:51-0.46:425:01Waning Gibbous13Tue
14Wed10:521.28:24-0.36:425:01Waning Gibbous14Wed
15Thu11:211.08:51-0.16:435:02Waning Gibbous15Thu
16Fri11:010.79:040.06:445:02Third Quarter16Fri
17Sat5:590.68:380.26:445:02Third Quarter17Sat
18Sun4:530.84:440.36:455:03Third Quarter18Sun
19Mon4:501.02:150.06:455:03Third Quarter19Mon
20Tue5:171.22:45-0.36:465:04Waning Crescent20Tue
21Wed5:591.43:29-0.66:465:04Waning Crescent21Wed
22Thu6:471.54:18-0.86:475:05Waning Crescent22Thu
23Fri7:381.65:08-0.96:475:05New Moon23Fri
24Sat8:281.55:59-0.96:485:06New Moon24Sat
25Sun9:151.46:47-0.86:485:06New Moon25Sun
26Mon9:581.27:31-0.66:495:07Waxing Crescent26Mon
27Tue10:331.08:06-0.56:495:07Waxing Crescent27Tue
28Wed10:570.88:27-0.36:495:08Waxing Crescent28Wed
29Thu10:500.58:23-0.16:505:09Waxing Crescent29Thu
30Fri6:110.47:370.16:505:09First Quarter30Fri
31Sat4:110.55:430.16:505:10First 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 11:02 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 neap phase. Tonight's moon is 58% 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 First Quarter (58% 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