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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:32 pm (0.3 ft)
Next high tide : in 3h 07m at 12:51 pm (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:360.94:51-0.76:465:36Waxing Gibbous1Sun
2Mon8:170.85:21-0.66:455:37Full Moon2Mon
3Tue8:540.75:46-0.56:445:38Full Moon3Tue
4Wed9:290.66:06-0.46:445:38Full Moon4Wed
5Thu10:020.56:19-0.36:435:39Full Moon5Thu
6Fri10:330.46:22-0.26:435:40Waning Gibbous6Fri
7Sat10:590.36:10-0.16:425:41Waning Gibbous7Sat
8Sun1:310.25:380.06:560.16:415:42Waning Gibbous8Sun
9Mon1:320.44:350.06:405:42Waning Gibbous9Mon
10Tue1:550.52:22-0.16:405:43Third Quarter10Tue
11Wed2:320.61:06-0.26:395:44Third Quarter11Wed
12Thu3:200.71:27-0.46:385:45Third Quarter12Thu
13Fri4:170.92:02-0.56:375:45Third Quarter13Fri
14Sat5:181.02:43-0.66:375:46Waning Crescent14Sat
15Sun6:211.03:26-0.76:365:47Waning Crescent15Sun
16Mon7:231.04:10-0.76:355:48Waning Crescent16Mon
17Tue8:251.04:54-0.76:345:48New Moon17Tue
18Wed9:280.95:36-0.56:335:49New Moon18Wed
19Thu10:340.76:11-0.36:325:50New Moon19Thu
20Fri11:510.56:30-0.16:315:51Waxing Crescent20Fri
21Sat12:060.36:050.16:060.06:305:51Waxing Crescent21Sat
22Sun12:030.58:59-0.16:295:52Waxing Crescent22Sun
23Mon12:330.711:13-0.36:285:53Waxing Crescent23Mon
24Tue1:190.86:275:53First Quarter24Tue
25Wed2:150.912:33-0.46:265:54First Quarter25Wed
26Thu3:170.91:32-0.56:255:55First Quarter26Thu
27Fri4:250.92:22-0.56:245:55Waxing Gibbous27Fri
28Sat5:340.93:05-0.46:235:56Waxing Gibbous28Sat
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 5:41 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 38% 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 First Quarter (38% 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