28.9317’ N, 89.4283’ W

Southwest Pass, Mississippi River, LA

85°
H -°
L 81°
E
18mph
High tide
12:08 am

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

TIDE TIMES for Sunday, August 30, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 7:36 am (0.7 ft)
Next high tide (tomorrow) : in 3h 11m at 12:08 am (1.2 ft)
Sunset today : 7:21 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 1911

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:511.19:520.25:027:00First Quarter1Sat
2Sun10:540.88:430.45:027:00First Quarter2Sun
3Mon6:130.84:290.45:027:00First Quarter3Mon
4Tue5:031.03:070.25:037:00First Quarter4Tue
5Wed4:591.23:20-0.15:037:00Waxing Gibbous5Wed
6Thu5:171.43:46-0.25:047:00Waxing Gibbous6Thu
7Fri5:461.54:17-0.35:046:59Waxing Gibbous7Fri
8Sat6:211.64:52-0.45:056:59Waxing Gibbous8Sat
9Sun6:591.65:28-0.45:056:59Full Moon9Sun
10Mon7:391.66:06-0.45:056:59Full Moon10Mon
11Tue8:191.66:44-0.45:066:59Full Moon11Tue
12Wed8:581.67:18-0.35:066:59Full Moon12Wed
13Thu9:341.67:48-0.35:076:58Waning Gibbous13Thu
14Fri10:081.58:11-0.25:076:58Waning Gibbous14Fri
15Sat10:391.38:260.05:086:58Waning Gibbous15Sat
16Sun11:051.18:250.25:086:58Waning Gibbous16Sun
17Mon11:030.97:480.45:096:57Third Quarter17Mon
18Tue5:050.85:020.55:106:57Third Quarter18Tue
19Wed3:591.01:510.25:106:56Third Quarter19Wed
20Thu3:591.32:15-0.15:116:56Third Quarter20Thu
21Fri4:281.52:59-0.45:116:56Waning Crescent21Fri
22Sat5:141.73:50-0.65:126:55Waning Crescent22Sat
23Sun6:091.94:44-0.75:126:55Waning Crescent23Sun
24Mon7:082.05:40-0.75:136:54New Moon24Mon
25Tue8:072.06:35-0.75:136:54New Moon25Tue
26Wed9:041.97:25-0.55:146:53New Moon26Wed
27Thu9:571.78:08-0.25:156:53Waxing Crescent27Thu
28Fri10:441.48:340.15:156:52Waxing Crescent28Fri
29Sat11:231.18:220.45:166:51Waxing Crescent29Sat
30Sun11:360.86:460.65:166:51Waxing Crescent30Sun
31Mon3:120.82:320.55:176:50First Quarter31Mon
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 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