28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

82°
H -°
L 79°
SW
4mph
High tide
10:11 pm

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

TIDE TIMES for Sunday, September 27, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 6:56 am (0.6 ft)
Next high tide : in 39m at 10:11 pm (1.6 ft)
Sunset today : 6:48 pm
Sunrise tomorrow : 6:48 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1856

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:561.85:15-0.55:087:01New Moon1Sun
2Mon7:341.96:06-0.65:087:01New Moon2Mon
3Tue8:182.06:58-0.65:087:02New Moon3Tue
4Wed9:032.07:49-0.55:077:02Waxing Crescent4Wed
5Thu9:481.98:38-0.45:077:02Waxing Crescent5Thu
6Fri10:311.79:22-0.35:077:03Waxing Crescent6Fri
7Sat11:091.69:59-0.15:077:03Waxing Crescent7Sat
8Sun11:411.410:230.15:077:04First Quarter8Sun
9Mon11:571.110:280.25:077:04First Quarter9Mon
10Tue11:070.99:530.45:077:05First Quarter10Tue
11Wed7:460.87:180.55:077:05First Quarter11Wed
12Thu6:140.93:380.35:077:05Waxing Gibbous12Thu
13Fri5:491.13:370.15:077:06Waxing Gibbous13Fri
14Sat5:551.34:01-0.15:077:06Waxing Gibbous14Sat
15Sun6:181.54:33-0.35:077:06Waxing Gibbous15Sun
16Mon6:501.65:11-0.45:077:07Full Moon16Mon
17Tue7:281.75:52-0.55:087:07Full Moon17Tue
18Wed8:091.86:37-0.65:087:07Full Moon18Wed
19Thu8:531.97:24-0.65:087:08Full Moon19Thu
20Fri9:391.88:11-0.55:087:08Waning Gibbous20Fri
21Sat10:241.88:56-0.45:087:08Waning Gibbous21Sat
22Sun11:071.69:34-0.35:097:08Waning Gibbous22Sun
23Mon11:451.39:570.05:097:08Third Quarter23Mon
24Tue11:591.09:450.35:097:09Third Quarter24Tue
25Wed7:200.87:020.55:097:09Third Quarter25Wed
26Thu5:210.92:340.25:107:09Third Quarter26Thu
27Fri5:011.23:03-0.25:107:09Waning Crescent27Fri
28Sat5:201.53:45-0.45:107:09Waning Crescent28Sat
29Sun5:561.74:31-0.65:117:09Waning Crescent29Sun
30Mon6:401.85:18-0.75:117:09New Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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 99% 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 Full Moon (99% 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