28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

83°
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 1h 46m 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 - Dec 1918

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:121.54:39-0.16:335:00New Moon1Sun
2Mon7:461.65:15-0.26:344:59New Moon2Mon
3Tue8:221.65:53-0.26:345:00New Moon3Tue
4Wed8:591.66:32-0.36:355:00New Moon4Wed
5Thu9:361.67:12-0.36:365:00Waxing Crescent5Thu
6Fri10:141.57:51-0.36:375:00Waxing Crescent6Fri
7Sat10:501.48:29-0.26:375:00Waxing Crescent7Sat
8Sun11:231.29:03-0.16:385:00Waxing Crescent8Sun
9Mon11:380.99:270.06:395:00First Quarter9Mon
10Tue7:530.79:290.26:405:00First Quarter10Tue
11Wed5:380.88:180.46:405:01First Quarter11Wed
12Thu5:101.02:210.26:415:01First Quarter12Thu
13Fri5:241.22:40-0.16:425:01Waxing Gibbous13Fri
14Sat5:581.53:21-0.46:425:01Waxing Gibbous14Sat
15Sun6:421.64:09-0.66:435:02Waxing Gibbous15Sun
16Mon7:301.74:59-0.76:445:02Full Moon16Mon
17Tue8:191.75:51-0.86:445:02Full Moon17Tue
18Wed9:071.66:41-0.76:455:03Full Moon18Wed
19Thu9:501.47:28-0.66:455:03Waning Gibbous19Thu
20Fri10:281.28:09-0.56:465:04Waning Gibbous20Fri
21Sat10:561.08:39-0.36:465:04Waning Gibbous21Sat
22Sun11:040.78:50-0.16:475:05Waning Gibbous22Sun
23Mon9:260.58:290.16:475:05Third Quarter23Mon
24Tue5:190.57:120.26:485:06Third Quarter24Tue
25Wed4:320.74:210.16:485:06Third Quarter25Wed
26Thu4:350.82:560.06:495:07Third Quarter26Thu
27Fri4:580.93:00-0.26:495:07Waning Crescent27Fri
28Sat5:311.13:24-0.46:495:08Waning Crescent28Sat
29Sun6:111.13:55-0.56:505:09Waning Crescent29Sun
30Mon6:521.24:30-0.66:505:09Waning Crescent30Mon
31Tue7:371.25:06-0.76:505:10New Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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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