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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:57 pm (0.1 ft)
Next high tide : in 1h 56m at 12:40 pm (1.3 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:361.66:36-0.26:197:48New Moon1Mon
2Tue9:221.67:13-0.16:197:48New Moon2Tue
3Wed10:051.57:410.16:207:47New Moon3Wed
4Thu10:431.37:590.26:207:46New Moon4Thu
5Fri11:161.28:010.46:217:45Waxing Crescent5Fri
6Sat11:421.07:430.56:217:45Waxing Crescent6Sat
7Sun11:460.96:560.66:227:44Waxing Crescent7Sun
8Mon3:430.95:200.66:237:43First Quarter8Mon
9Tue3:321.03:070.56:237:42First Quarter9Tue
10Wed3:511.12:510.46:247:41First Quarter10Wed
11Thu4:251.23:140.26:247:40First Quarter11Thu
12Fri5:091.43:450.16:257:39First Quarter12Fri
13Sat5:571.54:200.16:257:39Waxing Gibbous13Sat
14Sun6:471.54:550.06:267:38Waxing Gibbous14Sun
15Mon7:371.65:290.06:267:37Waxing Gibbous15Mon
16Tue8:251.66:030.16:277:36Full Moon16Tue
17Wed9:131.66:360.16:287:35Full Moon17Wed
18Thu10:021.57:050.26:287:34Full Moon18Thu
19Fri10:521.47:260.46:297:33Full Moon19Fri
20Sat11:471.27:300.66:297:32Waning Gibbous20Sat
21Sun12:561.06:520.86:307:31Waning Gibbous21Sun
22Mon1:591.08:500.76:307:30Waning Gibbous22Mon
23Tue2:041.211:530.56:317:29Third Quarter23Tue
24Wed2:371.41:170.36:317:27Third Quarter24Wed
25Thu3:271.52:180.26:327:26Third Quarter25Thu
26Fri4:271.73:130.16:327:25Third Quarter26Fri
27Sat5:321.74:030.06:337:24Waning Crescent27Sat
28Sun6:391.74:490.16:337:23Waning Crescent28Sun
29Mon7:411.75:290.26:347:22Waning Crescent29Mon
30Tue8:391.66:020.36:347:21New Moon30Tue
31Wed9:301.56:250.56:357:20New 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 5:48 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waxing Crescent (27% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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