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

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:26 pm (-0.4 ft)
Next high tide : in 4h 25m at 8:58 am (1.7 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 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:511.78:17-0.35:597:51New Moon1Sun
2Mon10:281.79:01-0.35:597:52Waxing Crescent2Mon
3Tue11:081.79:46-0.35:597:52Waxing Crescent3Tue
4Wed11:481.710:30-0.35:587:53Waxing Crescent4Wed
5Thu12:291.611:11-0.25:587:53Waxing Crescent5Thu
6Fri1:081.411:450.05:587:54First Quarter6Fri
7Sat1:411.25:587:54First Quarter7Sat
8Sun11:550.912:050.211:490.55:587:54First Quarter8Sun
9Mon8:230.93:450.55:587:55Waxing Gibbous9Mon
10Tue7:221.14:090.15:587:55Waxing Gibbous10Tue
11Wed7:141.44:54-0.25:587:56Waxing Gibbous11Wed
12Thu7:361.65:45-0.55:587:56Waxing Gibbous12Thu
13Fri8:141.96:39-0.75:587:56Full Moon13Fri
14Sat9:002.07:35-0.75:587:57Full Moon14Sat
15Sun9:492.08:31-0.75:587:57Full Moon15Sun
16Mon10:381.99:25-0.65:587:57Waning Gibbous16Mon
17Tue11:251.810:14-0.45:587:58Waning Gibbous17Tue
18Wed12:071.610:53-0.25:597:58Waning Gibbous18Wed
19Thu12:401.311:160.05:597:58Third Quarter19Thu
20Fri12:481.111:100.35:597:59Third Quarter20Fri
21Sat11:040.810:110.45:597:59Third Quarter21Sat
22Sun8:020.86:280.45:597:59Third Quarter22Sun
23Mon6:581.04:390.26:007:59Waning Crescent23Mon
24Tue6:451.14:440.06:007:59Waning Crescent24Tue
25Wed6:561.35:07-0.16:007:59Waning Crescent25Wed
26Thu7:191.45:38-0.36:008:00Waning Crescent26Thu
27Fri7:501.66:12-0.46:018:00Waning Crescent27Fri
28Sat8:261.66:50-0.46:018:00New Moon28Sat
29Sun9:041.77:29-0.46:018:00New Moon29Sun
30Mon9:441.78:08-0.46:028:00New Moon30Mon
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 2:12 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 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