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 4m 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 - Jun 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:511.55:55-0.25:597:51Waxing Gibbous1Sun
2Mon8:181.66:32-0.35:597:52Full Moon2Mon
3Tue8:521.77:13-0.45:597:52Full Moon3Tue
4Wed9:301.87:57-0.45:587:53Full Moon4Wed
5Thu10:111.88:44-0.55:587:53Full Moon5Thu
6Fri10:541.89:33-0.45:587:54Waning Gibbous6Fri
7Sat11:381.810:20-0.45:587:54Waning Gibbous7Sat
8Sun12:221.711:02-0.35:587:55Waning Gibbous8Sun
9Mon1:031.411:350.05:587:55Third Quarter9Mon
10Tue1:311.111:460.25:587:56Third Quarter10Tue
11Wed10:310.810:510.55:587:56Third Quarter11Wed
12Thu7:340.93:470.45:587:56Third Quarter12Thu
13Fri6:461.24:120.05:587:57Waning Crescent13Fri
14Sat6:511.54:56-0.35:587:57Waning Crescent14Sat
15Sun7:201.75:43-0.65:587:57Waning Crescent15Sun
16Mon8:001.96:33-0.75:587:58New Moon16Mon
17Tue8:452.07:24-0.75:597:58New Moon17Tue
18Wed9:321.98:14-0.65:597:58New Moon18Wed
19Thu10:191.99:01-0.55:597:59Waxing Crescent19Thu
20Fri11:021.79:43-0.45:597:59Waxing Crescent20Fri
21Sat11:411.610:17-0.25:597:59Waxing Crescent21Sat
22Sun12:121.410:390.06:007:59Waxing Crescent22Sun
23Mon12:301.110:390.26:007:59First Quarter23Mon
24Tue12:000.910:010.46:007:59First Quarter24Tue
25Wed8:210.87:480.46:008:00First Quarter25Wed
26Thu6:330.94:310.36:018:00First Quarter26Thu
27Fri6:081.14:150.16:018:00Waxing Gibbous27Fri
28Sat6:161.34:35-0.16:018:00Waxing Gibbous28Sat
29Sun6:411.45:06-0.36:028:00Waxing Gibbous29Sun
30Mon7:161.65:43-0.46:028:00Waxing Gibbous30Mon
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 11:02 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