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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:21 pm (-0.2 ft)
Next high tide : in 2h 23m at 11:16 am (1.6 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:09 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Nov 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:571.65:260.67:106:11New Moon1Sat
2Sun8:181.75:070.56:115:11New Moon2Sun
3Mon8:441.85:470.46:125:10New Moon3Mon
4Tue9:121.86:270.36:125:09New Moon4Tue
5Wed9:431.87:090.36:135:09Waxing Crescent5Wed
6Thu10:161.87:540.36:145:08Waxing Crescent6Thu
7Fri10:501.78:420.36:155:07Waxing Crescent7Fri
8Sat11:261.69:300.46:155:07Waxing Crescent8Sat
9Sun10:140.46:165:06First Quarter9Sun
10Mon12:011.510:500.56:175:05First Quarter10Mon
11Tue12:331.411:170.66:185:05First Quarter11Tue
12Wed12:341.28:481.111:290.76:185:04First Quarter12Wed
13Thu7:291.111:160.86:195:04Waxing Gibbous13Thu
14Fri7:051.32:330.76:205:03Waxing Gibbous14Fri
15Sat7:081.43:100.56:215:03Waxing Gibbous15Sat
16Sun7:291.63:560.36:225:02Full Moon16Sun
17Mon8:011.84:470.16:225:02Full Moon17Mon
18Tue8:401.95:42-0.16:235:02Full Moon18Tue
19Wed9:231.96:40-0.26:245:01Full Moon19Wed
20Thu10:091.97:40-0.26:255:01Waning Gibbous20Thu
21Fri10:551.78:41-0.26:265:01Waning Gibbous21Fri
22Sat11:381.59:380.06:265:00Waning Gibbous22Sat
23Sun10:260.16:275:00Third Quarter23Sun
24Mon12:101.311:371.010:590.36:285:00Third Quarter24Mon
25Tue8:240.910:590.56:295:00Third Quarter25Tue
26Wed6:591.09:300.76:305:00Waning Crescent26Wed
27Thu6:351.13:210.56:305:00Waning Crescent27Thu
28Fri6:401.33:410.36:314:59Waning Crescent28Fri
29Sat6:591.44:100.16:324:59Waning Crescent29Sat
30Sun7:241.44:410.06:334:59New Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 4:18 pm — 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 7% 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 Waxing Crescent (7% 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