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

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 8h 53m at 8:02 pm (-0.4 ft)
Next high tide (tomorrow) : 10:14 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:371.011:020.35:597:51Third Quarter1Thu
2Fri9:140.910:220.55:597:52Third Quarter2Fri
3Sat7:391.04:030.45:597:52Third Quarter3Sat
4Sun7:131.14:160.15:587:53Waning Crescent4Sun
5Mon7:191.44:55-0.15:587:53Waning Crescent5Mon
6Tue7:451.55:41-0.35:587:54Waning Crescent6Tue
7Wed8:211.76:28-0.45:587:54New Moon7Wed
8Thu9:021.87:16-0.45:587:55New Moon8Thu
9Fri9:441.78:02-0.45:587:55New Moon9Fri
10Sat10:251.78:45-0.35:587:56Waxing Crescent10Sat
11Sun11:031.59:21-0.15:587:56Waxing Crescent11Sun
12Mon11:351.49:470.05:587:56Waxing Crescent12Mon
13Tue11:561.210:000.25:587:57Waxing Crescent13Tue
14Wed11:511.09:510.35:587:57First Quarter14Wed
15Thu10:020.99:070.45:587:57First Quarter15Thu
16Fri7:370.97:070.45:587:58First Quarter16Fri
17Sat6:491.04:580.35:597:58First Quarter17Sat
18Sun6:411.14:420.15:597:58Waxing Gibbous18Sun
19Mon6:541.24:580.05:597:58Waxing Gibbous19Mon
20Tue7:181.35:25-0.15:597:59Waxing Gibbous20Tue
21Wed7:481.45:55-0.25:597:59Waxing Gibbous21Wed
22Thu8:221.56:28-0.36:007:59Full Moon22Thu
23Fri8:581.67:01-0.36:007:59Full Moon23Fri
24Sat9:341.67:36-0.36:007:59Full Moon24Sat
25Sun10:111.68:09-0.36:008:00Full Moon25Sun
26Mon10:481.58:42-0.26:018:00Waning Gibbous26Mon
27Tue11:241.49:10-0.16:018:00Waning Gibbous27Tue
28Wed11:551.29:270.16:018:00Waning Gibbous28Wed
29Thu11:590.99:190.36:028:00Third Quarter29Thu
30Fri7:310.88:030.46:028:00Third Quarter30Fri
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 3:08 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 spring phase. Tonight's moon is 100% 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 maximum.

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 Full Moon (100% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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