28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H -°
L 81°
SE
1mph
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 8h 29m 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 - Oct 1894

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:461.96:430.55:505:43Waxing Crescent1Mon
2Tue10:242.08:000.45:515:42Waxing Crescent2Tue
3Wed11:052.19:120.35:515:41Waxing Crescent3Wed
4Thu11:522.110:200.35:525:40Waxing Crescent4Thu
5Fri11:250.35:535:39First Quarter5Fri
6Sat12:452.012:250.45:535:37First Quarter6Sat
7Sun1:491.91:180.45:545:36First Quarter7Sun
8Mon3:031.92:030.55:545:35First Quarter8Mon
9Tue4:261.82:390.65:555:34Waxing Gibbous9Tue
10Wed5:491.73:040.75:555:33Waxing Gibbous10Wed
11Thu7:111.53:100.95:565:32Waxing Gibbous11Thu
12Fri8:391.48:521.22:441.15:575:31Waxing Gibbous12Fri
13Sat10:451.38:251.42:431.01:211.25:575:30Full Moon13Sat
14Sun8:301.64:050.85:585:29Full Moon14Sun
15Mon8:501.95:140.65:585:27Full Moon15Mon
16Tue9:222.06:210.45:595:26Waning Gibbous16Tue
17Wed10:022.27:300.36:005:25Waning Gibbous17Wed
18Thu10:502.38:440.16:005:24Waning Gibbous18Thu
19Fri11:452.39:580.16:015:23Waning Gibbous19Fri
20Sat11:090.06:025:22Third Quarter20Sat
21Sun12:482.212:140.16:025:21Third Quarter21Sun
22Mon2:002.11:110.26:035:20Third Quarter22Mon
23Tue3:271.91:580.46:045:20Waning Crescent23Tue
24Wed5:181.62:300.76:045:19Waning Crescent24Wed
25Thu7:381.48:471.22:281.06:055:18Waning Crescent25Thu
26Fri7:451.42:280.96:065:17Waning Crescent26Fri
27Sat7:441.73:540.66:065:16New Moon27Sat
28Sun8:061.94:590.46:075:15New Moon28Sun
29Mon8:372.05:560.26:085:14New Moon29Mon
30Tue9:112.16:490.16:095:13Waxing Crescent30Tue
31Wed9:482.17:420.16:095:13Waxing Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Collapse All
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