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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:13 pm (0.3 ft)
Next high tide : in 30m at 6:19 am (0.9 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 - Sep 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:061.411:270.56:357:19Waxing Crescent1Sun
2Mon1:391.512:380.46:367:17First Quarter2Mon
3Tue2:241.71:360.26:367:16First Quarter3Tue
4Wed3:221.82:310.06:377:15First Quarter4Wed
5Thu4:312.03:26-0.16:377:14Waxing Gibbous5Thu
6Fri5:462.04:20-0.16:387:13Waxing Gibbous6Fri
7Sat7:012.15:13-0.16:387:12Waxing Gibbous7Sat
8Sun8:152.06:030.16:397:10Waxing Gibbous8Sun
9Mon9:271.96:490.36:397:09Full Moon9Mon
10Tue10:441.77:240.76:407:08Full Moon10Tue
11Wed12:191.47:081.06:407:07Full Moon11Wed
12Thu11:121.45:450.76:417:06Waning Gibbous12Thu
13Fri11:481.78:120.66:417:04Waning Gibbous13Fri
14Sat10:130.46:427:03Waning Gibbous14Sat
15Sun12:341.911:450.26:427:02Third Quarter15Sun
16Mon1:272.012:580.26:437:01Third Quarter16Mon
17Tue2:252.02:010.26:437:00Third Quarter17Tue
18Wed3:302.02:560.26:446:58Third Quarter18Wed
19Thu4:441.93:440.36:446:57Waning Crescent19Thu
20Fri6:021.84:260.46:456:56Waning Crescent20Fri
21Sat7:131.85:010.56:456:55Waning Crescent21Sat
22Sun8:161.75:260.66:466:53Waning Crescent22Sun
23Mon9:131.65:380.86:466:52New Moon23Mon
24Tue10:101.511:351.15:261.06:476:51New Moon24Tue
25Wed11:161.310:471.23:131.04:401.16:476:50New Moon25Wed
26Thu10:421.45:030.96:486:49New Moon26Thu
27Fri10:561.66:320.86:496:47Waxing Crescent27Fri
28Sat11:211.87:540.76:496:46Waxing Crescent28Sat
29Sun11:551.99:160.66:506:45Waxing Crescent29Sun
30Mon10:340.46:506:44Waxing Crescent30Mon
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 11:16 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 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