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

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 02m at 8:59 pm (-0.2 ft)
Next high tide (tomorrow) : 11:19 am (1.4 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:110.85:31-0.36:225:57Full Moon1Mon
2Tue10:000.75:50-0.16:215:57Full Moon2Tue
3Wed10:500.55:510.06:205:58Full Moon3Wed
4Thu11:540.311:500.45:290.24:280.26:195:59Waning Gibbous4Thu
5Fri11:370.54:350.36:250.16:185:59Waning Gibbous5Fri
6Sat11:440.68:300.16:176:00Waning Gibbous6Sat
7Sun12:070.710:280.06:166:01Waning Gibbous7Sun
8Mon12:410.811:46-0.16:156:01Third Quarter8Mon
9Tue1:260.96:146:02Third Quarter9Tue
10Wed2:211.012:44-0.26:136:02Third Quarter10Wed
11Thu3:271.01:34-0.36:126:03Third Quarter11Thu
12Fri4:401.02:19-0.36:106:04Waning Crescent12Fri
13Sat5:511.13:01-0.36:096:04Waning Crescent13Sat
14Sun7:001.13:40-0.36:086:05Waning Crescent14Sun
15Mon8:051.04:16-0.26:076:05Waning Crescent15Mon
16Tue9:130.94:48-0.16:066:06New Moon16Tue
17Wed10:290.85:120.16:056:07New Moon17Wed
18Thu10:590.45:180.33:530.26:036:07New Moon18Thu
19Fri12:110.610:34 AM0.64:360.55:500.16:026:08Waxing Crescent19Fri
20Sat10:440.97:440.06:016:08Waxing Crescent20Sat
21Sun11:171.19:31-0.26:006:09Waxing Crescent21Sun
22Mon12:011.211:01-0.35:596:10First Quarter22Mon
23Tue12:551.35:586:10First Quarter23Tue
24Wed1:581.312:15-0.45:566:11First Quarter24Wed
25Thu3:111.31:18-0.35:556:11First Quarter25Thu
26Fri4:361.22:13-0.35:546:12Waxing Gibbous26Fri
27Sat6:041.12:59-0.25:536:12Waxing Gibbous27Sat
28Sun7:261.03:360.05:526:13Waxing Gibbous28Sun
29Mon8:420.93:590.25:516:13Waxing Gibbous29Mon
30Tue11:060.59:560.74:040.32:140.55:496:14Full Moon30Tue
31Wed10:050.711:260.73:430.53:490.45:486:15Full Moon31Wed
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 4:09 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 93% 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 Waning Gibbous (93% 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