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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 20m at 10:57 pm (0.1 ft)
Next high tide (tomorrow) : 12:51 pm (1.0 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 - Oct 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:231.912:270.56:516:43Third Quarter1Thu
2Fri2:191.91:270.46:516:42Third Quarter2Fri
3Sat3:291.92:220.36:526:40Third Quarter3Sat
4Sun4:521.93:130.46:526:39Waning Crescent4Sun
5Mon6:231.94:010.56:536:38Waning Crescent5Mon
6Tue7:561.84:430.66:536:37Waning Crescent6Tue
7Wed9:311.611:381.15:130.96:546:36New Moon7Wed
8Thu11:201.510:191.32:481.05:081.26:546:35New Moon8Thu
9Fri10:031.54:510.86:556:34New Moon9Fri
10Sat10:241.86:280.66:566:32Waxing Crescent10Sat
11Sun11:011.97:570.56:566:31Waxing Crescent11Sun
12Mon11:452.09:220.46:576:30Waxing Crescent12Mon
13Tue10:410.36:576:29Waxing Crescent13Tue
14Wed12:332.011:510.36:586:28First Quarter14Wed
15Thu1:232.012:530.46:596:27First Quarter15Thu
16Fri2:191.91:460.46:596:26First Quarter16Fri
17Sat3:221.82:290.57:006:25First Quarter17Sat
18Sun4:411.63:030.77:016:24Waxing Gibbous18Sun
19Mon6:211.53:250.87:016:23Waxing Gibbous19Mon
20Tue8:021.411:061.23:320.97:026:22Waxing Gibbous20Tue
21Wed9:381.310:011.22:451.13:141.17:026:21Waxing Gibbous21Wed
22Thu11:291.29:381.44:031.02:151.17:036:20Full Moon22Thu
23Fri9:371.55:020.87:046:19Full Moon23Fri
24Sat9:511.65:560.77:046:18Full Moon24Sat
25Sun10:141.76:480.67:056:17Full Moon25Sun
26Mon10:421.87:410.57:066:16Waning Gibbous26Mon
27Tue11:171.98:380.47:076:16Waning Gibbous27Tue
28Wed11:561.99:390.37:076:15Waning Gibbous28Wed
29Thu10:420.37:086:14Waning Gibbous29Thu
30Fri12:411.911:440.37:096:13Third Quarter30Fri
31Sat1:331.912:410.37:096:12Third 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 5:54 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 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