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 49m 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 - Jul 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:171.55:19-0.46:038:00Waning Crescent1Fri
2Sat7:561.66:04-0.56:038:00Waning Crescent2Sat
3Sun8:381.76:50-0.56:038:00New Moon3Sun
4Mon9:221.77:34-0.46:048:00New Moon4Mon
5Tue10:041.68:14-0.36:048:00New Moon5Tue
6Wed10:431.58:47-0.26:058:00Waxing Crescent6Wed
7Thu11:161.39:100.06:057:59Waxing Crescent7Thu
8Fri11:401.19:190.16:067:59Waxing Crescent8Fri
9Sat11:420.99:060.36:067:59Waxing Crescent9Sat
10Sun10:010.88:200.46:077:59First Quarter10Sun
11Mon6:450.86:340.46:077:59First Quarter11Mon
12Tue6:010.94:360.36:087:58First Quarter12Tue
13Wed6:001.04:180.16:087:58First Quarter13Wed
14Thu6:181.24:330.06:097:58Waxing Gibbous14Thu
15Fri6:461.34:59-0.16:097:57Waxing Gibbous15Fri
16Sat7:201.45:30-0.26:107:57Waxing Gibbous16Sat
17Sun7:581.56:02-0.26:107:57Waxing Gibbous17Sun
18Mon8:361.56:35-0.26:117:56Full Moon18Mon
19Tue9:151.57:08-0.26:117:56Full Moon19Tue
20Wed9:541.57:39-0.26:127:55Full Moon20Wed
21Thu10:331.48:09-0.16:127:55Full Moon21Thu
22Fri11:121.38:340.06:137:55Waning Gibbous22Fri
23Sat11:481.18:470.26:137:54Waning Gibbous23Sat
24Sun12:120.98:330.46:147:53Waning Gibbous24Sun
25Mon5:570.87:050.56:157:53Third Quarter25Mon
26Tue4:530.92:500.46:157:52Third Quarter26Tue
27Wed4:551.13:020.16:167:52Third Quarter27Wed
28Thu5:241.33:41-0.16:167:51Waning Crescent28Thu
29Fri6:061.54:26-0.26:177:50Waning Crescent29Fri
30Sat6:551.65:11-0.36:177:50Waning Crescent30Sat
31Sun7:461.65:55-0.36:187:49Waning Crescent31Sun
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