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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:09 pm (0.0 ft)
Next high tide : in 5h 10m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:100.48:59-0.16:515:11Third Quarter1Thu
2Fri5:150.47:300.16:515:12Third Quarter2Fri
3Sat4:170.63:570.06:515:12Third Quarter3Sat
4Sun4:180.82:40-0.26:515:13Third Quarter4Sun
5Mon4:410.92:49-0.46:515:14Waning Crescent5Mon
6Tue5:171.03:17-0.66:525:15Waning Crescent6Tue
7Wed5:591.13:52-0.76:525:15Waning Crescent7Wed
8Thu6:451.24:30-0.86:525:16Waning Crescent8Thu
9Fri7:321.35:11-0.96:525:17New Moon9Fri
10Sat8:171.35:53-0.96:525:18New Moon10Sat
11Sun9:011.36:33-0.96:525:19New Moon11Sun
12Mon9:431.27:12-0.96:525:19New Moon12Mon
13Tue10:251.07:47-0.86:525:20Waxing Crescent13Tue
14Wed11:050.88:16-0.66:525:21Waxing Crescent14Wed
15Thu11:410.58:30-0.46:515:22Waxing Crescent15Thu
16Fri4:480.28:02-0.16:515:23First Quarter16Fri
17Sat3:020.45:030.06:515:23First Quarter17Sat
18Sun3:040.71:06-0.36:515:24First Quarter18Sun
19Mon3:401.01:45-0.66:515:25First Quarter19Mon
20Tue4:311.22:32-0.96:505:26Waxing Gibbous20Tue
21Wed5:301.33:23-1.16:505:27Waxing Gibbous21Wed
22Thu6:311.34:15-1.26:505:28Waxing Gibbous22Thu
23Fri7:311.35:07-1.26:505:28Full Moon23Fri
24Sat8:261.25:56-1.16:495:29Full Moon24Sat
25Sun9:151.16:40-0.96:495:30Full Moon25Sun
26Mon9:570.97:16-0.76:485:31Full Moon26Mon
27Tue10:340.77:39-0.56:485:32Waning Gibbous27Tue
28Wed11:040.47:41-0.36:485:33Waning Gibbous28Wed
29Thu11:170.27:06-0.16:475:34Waning Gibbous29Thu
30Fri1:540.35:360.06:475:34Waning Gibbous30Fri
31Sat1:460.52:24-0.16:465:35Third Quarter31Sat
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 11:00 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 transitional phase. Tonight's moon is 68% 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 First Quarter (68% 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