28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

84°
H 87°
L 82°
NNW
5mph
High tide
8:50 am

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

TIDE TIMES for Wednesday, August 26, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 6:27 pm (0.2 ft)
Next high tide : in 2h 44m at 8:50 am (1.7 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jan 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:171.25:41-0.76:515:11New Moon1Wed
2Thu8:561.26:16-0.76:515:11New Moon2Thu
3Fri9:341.16:48-0.66:515:12New Moon3Fri
4Sat10:121.07:18-0.56:515:13Waxing Crescent4Sat
5Sun10:480.87:43-0.46:525:13Waxing Crescent5Sun
6Mon11:130.57:55-0.26:525:14Waxing Crescent6Mon
7Tue5:060.37:38-0.16:525:15First Quarter7Tue
8Wed3:370.55:540.16:525:16First Quarter8Wed
9Thu3:370.71:44-0.16:525:17First Quarter9Thu
10Fri4:080.91:57-0.46:525:17First Quarter10Fri
11Sat4:531.12:37-0.76:525:18Waxing Gibbous11Sat
12Sun5:451.23:23-0.96:525:19Waxing Gibbous12Sun
13Mon6:401.24:10-0.96:525:20Waxing Gibbous13Mon
14Tue7:331.24:57-1.06:525:21Full Moon14Tue
15Wed8:221.15:41-0.96:525:21Full Moon15Wed
16Thu9:071.06:20-0.86:525:22Full Moon16Thu
17Fri9:470.86:51-0.66:525:23Full Moon17Fri
18Sat10:200.67:10-0.46:515:24Waning Gibbous18Sat
19Sun10:430.47:10-0.36:515:25Waning Gibbous19Sun
20Mon10:360.26:44-0.16:515:25Waning Gibbous20Mon
21Tue2:310.35:430.06:515:26Waning Gibbous21Tue
22Wed2:240.43:51-0.16:515:27Third Quarter22Wed
23Thu2:440.52:05-0.26:505:28Third Quarter23Thu
24Fri3:200.72:00-0.46:505:29Third Quarter24Fri
25Sat4:050.82:24-0.56:505:30Third Quarter25Sat
26Sun4:560.92:57-0.66:495:31Waning Crescent26Sun
27Mon5:480.93:33-0.76:495:31Waning Crescent27Mon
28Tue6:391.04:09-0.86:485:32Waning Crescent28Tue
29Wed7:271.04:44-0.86:485:33Waning Crescent29Wed
30Thu8:141.05:17-0.86:475:34New Moon30Thu
31Fri9:000.95:49-0.76:475:35New Moon31Fri
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 spring phase. Tonight's moon is 98% 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 (98% 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