28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

88°
H 89°
L 81°
E
9mph
High tide
4:10 am

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 3:16 pm (0.3 ft)
Next high tide (tomorrow) : in 12h 54m at 4:10 am (1.9 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1867

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:351.65:17-0.35:087:00New Moon1Sat
2Sun8:101.76:09-0.45:087:01New Moon2Sun
3Mon8:521.87:04-0.45:087:01New Moon3Mon
4Tue9:361.87:59-0.45:087:02Waxing Crescent4Tue
5Wed10:211.78:52-0.35:077:02Waxing Crescent5Wed
6Thu11:031.59:37-0.15:077:03Waxing Crescent6Thu
7Fri11:361.310:100.15:077:03First Quarter7Fri
8Sat11:361.110:180.35:077:04First Quarter8Sat
9Sun9:220.99:330.55:077:04First Quarter9Sun
10Mon7:190.95:070.55:077:04First Quarter10Mon
11Tue6:361.03:580.35:077:05Waxing Gibbous11Tue
12Wed6:301.24:110.15:077:05Waxing Gibbous12Wed
13Thu6:431.34:350.05:077:06Waxing Gibbous13Thu
14Fri7:041.45:02-0.15:077:06Waxing Gibbous14Fri
15Sat7:301.55:31-0.25:077:06Full Moon15Sat
16Sun7:581.56:01-0.25:077:07Full Moon16Sun
17Mon8:271.56:32-0.25:077:07Full Moon17Mon
18Tue8:581.57:04-0.25:087:07Full Moon18Tue
19Wed9:291.57:35-0.15:087:07Waning Gibbous19Wed
20Thu9:591.48:03-0.15:087:08Waning Gibbous20Thu
21Fri10:281.38:270.05:087:08Waning Gibbous21Fri
22Sat10:521.28:450.15:087:08Waning Gibbous22Sat
23Sun11:031.08:530.25:097:08Third Quarter23Sun
24Mon9:460.98:400.35:097:08Third Quarter24Mon
25Tue6:400.87:190.45:097:09Third Quarter25Tue
26Wed5:521.03:110.35:097:09Third Quarter26Wed
27Thu5:471.13:130.05:107:09Waning Crescent27Thu
28Fri6:051.33:46-0.25:107:09Waning Crescent28Fri
29Sat6:361.54:30-0.45:107:09Waning Crescent29Sat
30Sun7:161.75:18-0.55:117:09New Moon30Sun
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 58% 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 First Quarter (58% 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