28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 80°
SW
5mph
High tide
3:46 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:00 pm (-0.2 ft)
Next high tide (tomorrow) : in 10h 37m at 3:46 am (2.1 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:37 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:020.83:410.64:596:51First Quarter1Sat
2Sun6:181.03:070.24:586:52Waxing Gibbous2Sun
3Mon5:571.33:44-0.14:586:52Waxing Gibbous3Mon
4Tue6:131.64:27-0.34:586:52Waxing Gibbous4Tue
5Wed6:441.85:10-0.54:586:53Full Moon5Wed
6Thu7:211.95:53-0.54:586:53Full Moon6Thu
7Fri8:011.96:37-0.54:586:54Full Moon7Fri
8Sat8:421.87:20-0.44:586:54Full Moon8Sat
9Sun9:231.88:02-0.44:586:55Waning Gibbous9Sun
10Mon10:021.78:42-0.34:586:55Waning Gibbous10Mon
11Tue10:381.69:16-0.14:586:56Waning Gibbous11Tue
12Wed11:101.49:410.04:586:56Waning Gibbous12Wed
13Thu11:331.29:490.24:586:56Third Quarter13Thu
14Fri11:251.09:260.44:586:57Third Quarter14Fri
15Sat8:190.87:520.54:586:57Third Quarter15Sat
16Sun5:540.93:500.44:586:57Third Quarter16Sun
17Mon5:181.13:110.14:586:58Waning Crescent17Mon
18Tue5:221.33:30-0.14:586:58Waning Crescent18Tue
19Wed5:451.54:02-0.34:586:58Waning Crescent19Wed
20Thu6:201.74:43-0.54:596:58Waning Crescent20Thu
21Fri7:031.85:29-0.64:596:59New Moon21Fri
22Sat7:501.96:19-0.74:596:59New Moon22Sat
23Sun8:402.07:11-0.74:596:59New Moon23Sun
24Mon9:311.98:02-0.65:006:59Waxing Crescent24Mon
25Tue10:201.88:49-0.55:006:59Waxing Crescent25Tue
26Wed11:071.69:26-0.25:006:59Waxing Crescent26Wed
27Thu11:471.29:400.15:017:00Waxing Crescent27Thu
28Fri11:410.98:490.45:017:00First Quarter28Fri
29Sat5:410.83:020.45:017:00First Quarter29Sat
30Sun4:301.02:270.05:027:00First Quarter30Sun
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 neap phase. Tonight's moon is 46% 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 (46% 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