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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 5:13 pm (-0.7 ft)
Next high tide : in 5h 54m at 6:35 am (1.8 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:080.89:390.93:120.42:080.76:167:33Waxing Gibbous1Wed
2Thu9:130.92:590.74:070.46:157:34Waxing Gibbous2Thu
3Fri8:381.25:240.16:147:34Full Moon3Fri
4Sat8:501.56:32-0.26:137:35Full Moon4Sat
5Sun9:241.87:39-0.46:127:35Full Moon5Sun
6Mon10:072.08:45-0.56:127:36Waning Gibbous6Mon
7Tue10:552.09:51-0.56:117:37Waning Gibbous7Tue
8Wed11:452.010:56-0.46:107:37Waning Gibbous8Wed
9Thu12:361.811:56-0.36:097:38Waning Gibbous9Thu
10Fri1:261.76:097:38Third Quarter10Fri
11Sat2:131.412:48-0.16:087:39Third Quarter11Sat
12Sun2:511.21:260.16:077:40Third Quarter12Sun
13Mon2:151.01:460.36:077:40Third Quarter13Mon
14Tue10:190.98:030.71:360.54:400.76:067:41Waning Crescent14Tue
15Wed8:551.012:210.74:460.56:067:42Waning Crescent15Wed
16Thu8:241.15:150.36:057:42Waning Crescent16Thu
17Fri8:221.35:480.16:047:43Waning Crescent17Fri
18Sat8:351.56:220.06:047:43New Moon18Sat
19Sun8:571.66:59-0.16:037:44New Moon19Sun
20Mon9:261.77:39-0.26:037:45New Moon20Mon
21Tue9:591.78:24-0.26:027:45New Moon21Tue
22Wed10:371.89:12-0.36:027:46Waxing Crescent22Wed
23Thu11:181.810:02-0.36:027:46Waxing Crescent23Thu
24Fri12:011.810:51-0.36:017:47Waxing Crescent24Fri
25Sat12:461.711:38-0.26:017:47Waxing Crescent25Sat
26Sun1:311.56:007:48First Quarter26Sun
27Mon2:161.312:180.06:007:49First Quarter27Mon
28Tue2:351.012:470.26:007:49First Quarter28Tue
29Wed9:070.912:470.53:260.66:007:50Waxing Gibbous29Wed
30Thu7:491.04:100.25:597:50Waxing Gibbous30Thu
31Fri7:321.35:01-0.15:597:51Waxing Gibbous31Fri
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 11:54 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 11% 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 Waning Crescent (11% 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