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

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.

Next low tide (tomorrow) : 5:38 pm (0.2 ft)
Next high tide (tomorrow) : in 9h 00m at 7:44 am (2.0 ft)
Sunset today : 7:12 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Crescent (15% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1886

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May 1886 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Thu			8:22	0.8	3:21	0.3			5:47	6:15		1	Thu
2	Fri	10:17	0.6	9:36	0.8	3:25	0.4	2:04	0.5	5:46	6:16		2	Fri
3	Sat	9:33	0.7	11:03	0.7	3:09	0.5	3:26	0.4	5:44	6:17		3	Sat
4	Sun	9:24	0.8			2:24	0.6	4:33	0.3	5:43	6:17		4	Sun
5	Mon	9:33	1.0					5:38	0.2	5:42	6:18		5	Mon
6	Tue	9:53	1.1					6:44	0.1	5:41	6:18		6	Tue
7	Wed	10:21	1.2					7:55	0.0	5:40	6:19		7	Wed
8	Thu	10:56	1.3					9:08	0.0	5:39	6:19		8	Thu
9	Fri	11:38	1.4					10:21	-0.1	5:38	6:20		9	Fri
10	Sat			12:28	1.4			11:28	-0.1	5:36	6:20		10	Sat
11	Sun			1:26	1.4					5:35	6:21		11	Sun
12	Mon			2:38	1.3	12:29	-0.1			5:34	6:22		12	Mon
13	Tue			4:16	1.2	1:23	0.0			5:33	6:22		13	Tue
14	Wed			6:20	1.1	2:09	0.1			5:32	6:23		14	Wed
15	Thu			8:29	0.9	2:43	0.3			5:31	6:23		15	Thu
16	Fri	9:27	0.8	10:57	0.8	2:53	0.6	3:00	0.5	5:30	6:24		16	Fri
17	Sat	8:47	0.9			2:08	0.8	4:17	0.3	5:29	6:25		17	Sat
18	Sun	8:44	1.1					5:24	0.2	5:28	6:25		18	Sun
19	Mon	9:03	1.3					6:25	0.1	5:27	6:26		19	Mon
20	Tue	9:32	1.4					7:23	0.0	5:26	6:26		20	Tue
21	Wed	10:06	1.5					8:20	0.0	5:25	6:27		21	Wed
22	Thu	10:41	1.5					9:16	0.0	5:24	6:27		22	Thu
23	Fri	11:18	1.5					10:11	0.0	5:23	6:28		23	Fri
24	Sat	11:56	1.4					11:02	0.1	5:22	6:29		24	Sat
25	Sun			12:35	1.3			11:48	0.2	5:21	6:29		25	Sun
26	Mon			1:17	1.2					5:20	6:30		26	Mon
27	Tue			2:03	1.1	12:26	0.3			5:19	6:30		27	Tue
28	Wed			3:31	0.9	12:54	0.4			5:18	6:31		28	Wed
29	Thu	9:47	0.8	7:05	0.8	1:05	0.5	2:16	0.8	5:17	6:32		29	Thu
30	Fri	8:35	0.9			12:52	0.6	3:04	0.6	5:16	6:32		30	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8760959)

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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 15% 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 Crescent (15% 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

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