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

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 03m at 7:26 pm (-0.4 ft)
Next high tide (tomorrow) : 9:37 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:251.46:530.16:167:33New Moon1Thu
2Fri9:451.57:350.06:157:33New Moon2Fri
3Sat10:121.68:21-0.16:147:34Waxing Crescent3Sat
4Sun10:451.79:11-0.16:137:35Waxing Crescent4Sun
5Mon11:221.710:06-0.16:137:35Waxing Crescent5Mon
6Tue12:051.711:02-0.26:127:36Waxing Crescent6Tue
7Wed12:511.711:57-0.16:117:36First Quarter7Wed
8Thu1:431.66:107:37First Quarter8Thu
9Fri2:401.512:46-0.16:107:38First Quarter9Fri
10Sat3:541.31:300.06:097:38First Quarter10Sat
11Sun6:121.02:050.26:087:39Waxing Gibbous11Sun
12Mon10:020.810:010.82:200.52:560.76:087:40Waxing Gibbous12Mon
13Tue8:401.01:360.84:180.36:077:40Waxing Gibbous13Tue
14Wed8:201.35:230.06:067:41Full Moon14Wed
15Thu8:361.66:26-0.36:067:41Full Moon15Thu
16Fri9:111.87:28-0.56:057:42Full Moon16Fri
17Sat9:542.08:31-0.56:057:43Full Moon17Sat
18Sun10:432.09:35-0.56:047:43Waning Gibbous18Sun
19Mon11:332.010:38-0.46:047:44Waning Gibbous19Mon
20Tue12:231.811:35-0.36:037:44Waning Gibbous20Tue
21Wed1:101.66:037:45Third Quarter21Wed
22Thu1:491.412:23-0.16:027:46Third Quarter22Thu
23Fri2:071.112:560.16:027:46Third Quarter23Fri
24Sat12:000.91:050.46:017:47Third Quarter24Sat
25Sun9:230.912:320.55:210.66:017:47Waning Crescent25Sun
26Mon8:201.05:000.46:017:48Waning Crescent26Mon
27Tue8:021.25:210.26:007:48Waning Crescent27Tue
28Wed8:061.45:490.06:007:49Waning Crescent28Wed
29Thu8:231.56:21-0.16:007:50New Moon29Thu
30Fri8:471.66:56-0.25:597:50New Moon30Fri
31Sat9:171.77:35-0.35:597:51New Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 2:31 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 100% 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 (100% 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