28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

78°
H 82°
L 77°
ENE
15mph
Low tide
4:50 pm

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

TIDE TIMES for Friday, September 25, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 04m at 4:50 pm (1.0 ft)
Next high tide : 10:33 pm (1.1 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 6:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 1860

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:021.85:37-0.65:117:09Full Moon1Sun
2Mon7:481.86:18-0.55:127:09Full Moon2Mon
3Tue8:321.76:55-0.45:127:09Full Moon3Tue
4Wed9:111.67:27-0.35:137:09Full Moon4Wed
5Thu9:461.57:51-0.15:137:09Waning Gibbous5Thu
6Fri10:161.38:040.05:147:09Waning Gibbous6Fri
7Sat10:391.18:000.25:147:09Waning Gibbous7Sat
8Sun10:410.97:240.35:147:08Waning Gibbous8Sun
9Mon6:240.75:560.45:157:08Third Quarter9Mon
10Tue3:490.83:220.35:157:08Third Quarter10Tue
11Wed3:331.02:230.15:167:08Third Quarter11Wed
12Thu3:501.22:36-0.15:167:08Third Quarter12Thu
13Fri4:241.43:06-0.25:177:07Waning Crescent13Fri
14Sat5:071.53:44-0.45:177:07Waning Crescent14Sat
15Sun5:551.74:25-0.55:187:07Waning Crescent15Sun
16Mon6:461.85:09-0.65:187:06Waning Crescent16Mon
17Tue7:371.85:54-0.65:197:06New Moon17Tue
18Wed8:281.86:37-0.55:207:06New Moon18Wed
19Thu9:191.77:18-0.35:207:05New Moon19Thu
20Fri10:101.57:50-0.15:217:05Waxing Crescent20Fri
21Sat11:001.27:580.25:217:04Waxing Crescent21Sat
22Sun11:530.97:020.55:227:04Waxing Crescent22Sun
23Mon2:430.711:250.55:227:03First Quarter23Mon
24Tue2:111.012:390.15:237:03First Quarter24Tue
25Wed2:351.31:31-0.15:237:02First Quarter25Wed
26Thu3:191.52:22-0.35:247:02First Quarter26Thu
27Fri4:121.73:12-0.45:257:01Waxing Gibbous27Fri
28Sat5:101.73:59-0.55:257:00Waxing Gibbous28Sat
29Sun6:071.74:44-0.45:267:00Waxing Gibbous29Sun
30Mon7:011.75:24-0.35:266:59Waxing Gibbous30Mon
31Tue7:491.65:57-0.25:276:58Full Moon31Tue
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