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

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:17 pm (-0.1 ft)
Next high tide : in 11h 35m at 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 - Apr 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:591.29:580.06:477:15Waxing Crescent1Thu
2Fri12:371.311:12-0.16:457:16Waxing Crescent2Fri
3Sat1:221.36:447:17First Quarter3Sat
4Sun2:171.412:20-0.16:437:17First Quarter4Sun
5Mon3:251.41:22-0.26:427:18First Quarter5Mon
6Tue4:501.32:19-0.26:417:18First Quarter6Tue
7Wed6:311.23:11-0.16:407:19Waxing Gibbous7Wed
8Thu8:171.13:580.06:397:19Waxing Gibbous8Thu
9Fri10:071.04:370.26:377:20Waxing Gibbous9Fri
10Sat10:550.74:560.53:580.46:367:21Full Moon10Sat
11Sun12:200.910:07 AM0.94:230.75:340.26:357:21Full Moon11Sun
12Mon10:061.16:560.16:347:22Full Moon12Mon
13Tue10:311.38:14-0.16:337:22Waning Gibbous13Tue
14Wed11:081.59:28-0.16:327:23Waning Gibbous14Wed
15Thu11:501.610:39-0.16:317:23Waning Gibbous15Thu
16Fri12:341.511:44-0.16:307:24Waning Gibbous16Fri
17Sat1:201.56:297:25Third Quarter17Sat
18Sun2:081.412:420.06:287:25Third Quarter18Sun
19Mon3:011.21:320.16:277:26Third Quarter19Mon
20Tue4:071.12:130.26:267:26Third Quarter20Tue
21Wed5:581.02:440.36:257:27Waning Crescent21Wed
22Thu8:130.93:020.46:247:28Waning Crescent22Thu
23Fri10:310.810:190.83:010.63:450.76:237:28Waning Crescent23Fri
24Sat9:450.92:270.74:410.56:227:29Waning Crescent24Sat
25Sun9:301.05:290.46:217:29New Moon25Sun
26Mon9:351.26:160.36:207:30New Moon26Mon
27Tue9:521.37:020.26:197:31New Moon27Tue
28Wed10:171.47:510.16:187:31New Moon28Wed
29Thu10:471.58:430.06:177:32Waxing Crescent29Thu
30Fri11:211.69:40-0.16:167:32Waxing Crescent30Fri
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 4:18 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 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