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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 46m at 3:44 pm (0.3 ft)
Next high tide (tomorrow) : 4:54 am (1.1 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 - Oct 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:241.510:201.25:131.16:516:43New Moon1Sun
2Mon1:011.34:010.93:171.36:516:42New Moon2Mon
3Tue9:531.75:470.76:526:40New Moon3Tue
4Wed10:231.97:110.56:526:39Waxing Crescent4Wed
5Thu10:582.08:240.46:536:38Waxing Crescent5Thu
6Fri11:372.19:320.36:536:37Waxing Crescent6Fri
7Sat10:390.36:546:36Waxing Crescent7Sat
8Sun12:212.111:450.36:546:35First Quarter8Sun
9Mon1:102.012:470.36:556:34First Quarter9Mon
10Tue2:082.01:430.46:566:33First Quarter10Tue
11Wed3:151.92:310.56:566:31First Quarter11Wed
12Thu4:341.83:110.66:576:30Waxing Gibbous12Thu
13Fri5:591.73:390.76:576:29Waxing Gibbous13Fri
14Sat7:271.53:500.96:586:28Waxing Gibbous14Sat
15Sun9:021.49:511.23:321.06:596:27Waxing Gibbous15Sun
16Mon11:071.39:121.43:181.02:221.26:596:26Full Moon16Mon
17Tue9:111.64:420.87:006:25Full Moon17Tue
18Wed9:291.85:490.67:006:24Full Moon18Wed
19Thu9:592.06:530.47:016:23Full Moon19Thu
20Fri10:382.27:590.27:026:22Waning Gibbous20Fri
21Sat11:242.39:100.17:026:21Waning Gibbous21Sat
22Sun10:240.07:036:20Waning Gibbous22Sun
23Mon12:182.311:370.07:046:19Third Quarter23Mon
24Tue1:182.212:430.07:046:18Third Quarter24Tue
25Wed2:252.11:420.17:056:17Third Quarter25Wed
26Thu3:421.92:310.37:066:16Third Quarter26Thu
27Fri5:241.63:050.67:066:16Waning Crescent27Fri
28Sat7:481.49:541.13:090.97:076:15Waning Crescent28Sat
29Sun11:141.28:381.43:090.91:391.27:086:14Waning Crescent29Sun
30Mon8:291.64:370.67:096:13New Moon30Mon
31Tue8:481.85:390.47:096:12New Moon31Tue
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 10:19 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 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