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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:03 pm (-0.8 ft)
Next high tide : in 3h 45m at 8:31 am (2.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:08 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:371.14:38-0.96:455:36Waning Crescent1Wed
2Thu8:351.05:22-0.96:455:37New Moon2Thu
3Fri9:340.96:04-0.76:445:38New Moon3Fri
4Sat10:360.76:39-0.56:445:38New Moon4Sat
5Sun11:480.46:55-0.26:435:39Waxing Crescent5Sun
6Mon12:390.26:200.06:380.06:425:40Waxing Crescent6Mon
7Tue12:320.410:14-0.26:425:41Waxing Crescent7Tue
8Wed1:030.76:415:42First Quarter8Wed
9Thu1:510.812:04-0.56:405:42First Quarter9Thu
10Fri2:480.91:10-0.66:395:43First Quarter10Fri
11Sat3:511.02:04-0.76:395:44First Quarter11Sat
12Sun4:560.92:53-0.76:385:45Waxing Gibbous12Sun
13Mon5:590.93:36-0.76:375:45Waxing Gibbous13Mon
14Tue6:560.94:13-0.66:365:46Waxing Gibbous14Tue
15Wed7:460.84:44-0.56:355:47Waxing Gibbous15Wed
16Thu8:310.75:09-0.46:355:48Full Moon16Thu
17Fri9:130.65:25-0.36:345:48Full Moon17Fri
18Sat9:540.55:30-0.26:335:49Full Moon18Sat
19Sun12:210.15:190.02:360.16:325:50Full Moon19Sun
20Mon11:350.311:290.24:490.14:460.16:315:51Waning Gibbous20Mon
21Tue11:320.43:520.16:450.06:305:51Waning Gibbous21Tue
22Wed11:490.69:07-0.16:295:52Waning Gibbous22Wed
23Thu12:180.711:00-0.26:285:53Waning Gibbous23Thu
24Fri12:580.86:275:53Third Quarter24Fri
25Sat1:490.912:05-0.36:265:54Third Quarter25Sat
26Sun2:491.012:58-0.56:255:55Third Quarter26Sun
27Mon3:591.11:48-0.66:245:55Third Quarter27Mon
28Tue5:141.12:36-0.66:235:56Waning Crescent28Tue
29Wed6:301.13:23-0.66:225:57Waning Crescent29Wed
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 1:47 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 1% 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 New Moon (1% 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