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

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 7h 17m at 8:59 pm (-0.2 ft)
Next high tide (tomorrow) : 11:19 am (1.4 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:551.47:220.16:167:33Full Moon1Sat
2Sun10:181.58:050.16:157:33Waning Gibbous2Sun
3Mon10:461.58:510.06:147:34Waning Gibbous3Mon
4Tue11:181.59:410.06:137:35Waning Gibbous4Tue
5Wed11:541.510:320.06:137:35Waning Gibbous5Wed
6Thu12:341.511:230.06:127:36Waning Gibbous6Thu
7Fri1:171.46:117:36Third Quarter7Fri
8Sat2:051.312:110.16:107:37Third Quarter8Sat
9Sun3:021.212:540.26:107:38Third Quarter9Sun
10Mon4:521.01:290.36:097:38Waning Crescent10Mon
11Tue10:220.98:300.81:520.52:520.76:087:39Waning Crescent11Tue
12Wed9:110.91:470.74:010.56:087:39Waning Crescent12Wed
13Thu8:471.15:000.26:077:40Waning Crescent13Thu
14Fri8:511.45:590.06:067:41New Moon14Fri
15Sat9:151.66:59-0.26:067:41New Moon15Sat
16Sun9:511.78:00-0.36:057:42New Moon16Sun
17Mon10:331.89:02-0.46:057:43Waxing Crescent17Mon
18Tue11:181.810:04-0.36:047:43Waxing Crescent18Tue
19Wed12:041.711:01-0.26:047:44Waxing Crescent19Wed
20Thu12:471.611:510.06:037:44First Quarter20Thu
21Fri1:231.46:037:45First Quarter21Fri
22Sat1:321.112:280.16:027:46First Quarter22Sat
23Sun11:460.912:450.36:027:46First Quarter23Sun
24Mon9:380.912:270.510:290.66:017:47Waxing Gibbous24Mon
25Tue8:411.05:090.46:017:47Waxing Gibbous25Tue
26Wed8:221.15:240.36:017:48Waxing Gibbous26Wed
27Thu8:251.35:490.16:007:48Waxing Gibbous27Thu
28Fri8:381.46:180.06:007:49Full Moon28Fri
29Sat8:591.56:49-0.16:007:49Full Moon29Sat
30Sun9:241.57:23-0.15:597:50Full Moon30Sun
31Mon9:521.68:00-0.15:597:51Full Moon31Mon
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 4:09 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 93% 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 Gibbous (93% 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