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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 3:44 pm (0.3 ft)
Next high tide : in 25m at 5:21 am (0.9 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (51% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Aug 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:510.93:020.56:187:49Third Quarter1Thu
2Fri2:551.11:390.26:197:48Third Quarter2Fri
3Sat3:241.32:140.06:197:48Third Quarter3Sat
4Sun4:091.63:01-0.26:207:47Third Quarter4Sun
5Mon5:061.73:52-0.46:207:46Waning Crescent5Mon
6Tue6:091.94:45-0.56:217:45Waning Crescent6Tue
7Wed7:151.95:37-0.56:217:45Waning Crescent7Wed
8Thu8:191.96:28-0.46:227:44New Moon8Thu
9Fri9:221.87:14-0.26:237:43New Moon9Fri
10Sat10:231.67:510.16:237:42New Moon10Sat
11Sun11:231.38:030.46:247:41New Moon11Sun
12Mon12:301.07:120.76:247:40Waxing Crescent12Mon
13Tue1:200.87:090.66:257:39Waxing Crescent13Tue
14Wed1:091.110:500.56:257:38Waxing Crescent14Wed
15Thu1:361.312:380.36:267:38First Quarter15Thu
16Fri2:181.51:400.16:267:37First Quarter16Fri
17Sat3:071.62:310.06:277:36First Quarter17Sat
18Sun4:031.63:180.06:287:35First Quarter18Sun
19Mon5:051.64:030.06:287:34Waxing Gibbous19Mon
20Tue6:081.74:450.06:297:33Waxing Gibbous20Tue
21Wed7:071.75:230.16:297:32Waxing Gibbous21Wed
22Thu8:001.65:550.16:307:31Waxing Gibbous22Thu
23Fri8:471.66:200.36:307:30Full Moon23Fri
24Sat9:301.56:340.46:317:28Full Moon24Sat
25Sun10:131.46:320.66:317:27Full Moon25Sun
26Mon10:591.26:070.76:327:26Full Moon26Mon
27Tue12:410.911:58 AM1.04:240.85:140.86:327:25Waning Gibbous27Tue
28Wed12:141.16:530.76:337:24Waning Gibbous28Wed
29Thu12:221.39:170.66:337:23Waning Gibbous29Thu
30Fri12:481.511:120.46:347:22Waning Gibbous30Fri
31Sat1:291.712:300.26:347:21Third Quarter31Sat
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 10:32 am — 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 neap phase. Tonight's moon is 51% 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 minimum.

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 Third Quarter (51% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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