28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

91°
H -°
L 81°
E
8mph
High tide
1:37 am

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 12:51 pm (0.1 ft)
Next high tide (tomorrow) : in 7h 54m at 1:37 am (1.8 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:36 am
Moon phase : Third Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:560.711:59-0.16:235:57First Quarter1Thu
2Fri1:360.86:225:57First Quarter2Fri
3Sat2:290.912:53-0.36:215:58First Quarter3Sat
4Sun3:310.91:40-0.36:205:59First Quarter4Sun
5Mon4:391.02:23-0.46:195:59Waxing Gibbous5Mon
6Tue5:461.03:05-0.46:186:00Waxing Gibbous6Tue
7Wed6:501.03:44-0.46:176:00Waxing Gibbous7Wed
8Thu7:521.04:22-0.46:166:01Waxing Gibbous8Thu
9Fri8:541.04:57-0.36:146:02Full Moon9Fri
10Sat9:590.85:27-0.16:136:02Full Moon10Sat
11Sun11:170.75:470.16:126:03Full Moon11Sun
12Mon11:150.45:370.34:590.26:116:03Waning Gibbous12Mon
13Tue1:270.511:05 AM0.64:080.57:100.06:106:04Waning Gibbous13Tue
14Wed11:270.99:16-0.16:096:05Waning Gibbous14Wed
15Thu12:071.110:57-0.36:086:05Waning Gibbous15Thu
16Fri12:591.26:066:06Third Quarter16Fri
17Sat2:001.212:15-0.46:056:06Third Quarter17Sat
18Sun3:111.21:19-0.46:046:07Third Quarter18Sun
19Mon4:311.22:15-0.46:036:08Waning Crescent19Mon
20Tue5:531.13:04-0.36:026:08Waning Crescent20Tue
21Wed7:101.03:45-0.26:016:09Waning Crescent21Wed
22Thu8:190.94:150.05:596:09Waning Crescent22Thu
23Fri9:240.84:320.25:586:10New Moon23Fri
24Sat11:040.510:310.74:290.32:460.45:576:10New Moon24Sat
25Sun10:200.64:020.44:170.35:566:11New Moon25Sun
26Mon12:000.610:10 AM0.72:580.55:310.35:556:12New Moon26Mon
27Tue10:180.96:420.25:546:12Waxing Crescent27Tue
28Wed10:371.07:550.15:526:13Waxing Crescent28Wed
29Thu11:041.19:110.05:516:13Waxing Crescent29Thu
30Fri11:391.210:250.05:506:14Waxing Crescent30Fri
31Sat12:221.211:310.05:496:14First Quarter31Sat
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 transitional phase. Tonight's moon is 68% 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 shifting between spring and neap.

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 Third Quarter (68% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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