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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.

Next low tide (tomorrow) : 4:09 pm (0.0 ft)
Next high tide (tomorrow) : in 10h 12m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2042

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Mon	11:58	1.4					7:30	0.8	6:35	7:19		1	Mon
2	Tue	12:35	0.9	2:14	1.1	5:19	0.7	5:28	1.1	6:36	7:18		2	Tue
3	Wed					8:22	0.6			6:36	7:17		3	Wed
4	Thu	12:20	1.5			10:41	0.3			6:37	7:15		4	Thu
5	Fri	1:05	1.8					12:16	0.1	6:37	7:14		5	Fri
6	Sat	2:01	2.0					1:30	0.0	6:38	7:13		6	Sat
7	Sun	3:05	2.0					2:35	-0.1	6:38	7:12		7	Sun
8	Mon	4:18	2.0					3:33	0.0	6:39	7:11		8	Mon
9	Tue	5:35	2.0					4:24	0.0	6:39	7:10		9	Tue
10	Wed	6:50	1.9					5:09	0.2	6:40	7:08		10	Wed
11	Thu	7:56	1.8					5:44	0.4	6:40	7:07		11	Thu
12	Fri	8:54	1.7					6:07	0.5	6:41	7:06		12	Fri
13	Sat	9:46	1.5					6:14	0.7	6:41	7:05		13	Sat
14	Sun	10:39	1.4					5:55	0.9	6:42	7:04		14	Sun
15	Mon	12:06	1.0	11:18	1.2	3:42	1.0	5:01	1.0	6:42	7:02		15	Mon
16	Tue			11:12	1.4	5:42	0.9			6:43	7:01		16	Tue
17	Wed			11:27	1.5	7:19	0.8			6:43	7:00		17	Wed
18	Thu			11:54	1.7	8:51	0.7			6:44	6:59		18	Thu
19	Fri					10:18	0.6			6:44	6:57		19	Fri
20	Sat	12:30	1.8			11:35	0.4			6:45	6:56		20	Sat
21	Sun	1:17	1.9					12:42	0.3	6:45	6:55		21	Sun
22	Mon	2:14	1.9					1:42	0.3	6:46	6:54		22	Mon
23	Tue	3:23	2.0					2:36	0.2	6:46	6:53		23	Tue
24	Wed	4:40	2.0					3:26	0.2	6:47	6:51		24	Wed
25	Thu	6:01	2.0					4:12	0.3	6:47	6:50		25	Thu
26	Fri	7:21	1.9					4:55	0.4	6:48	6:49		26	Fri
27	Sat	8:43	1.8					5:32	0.6	6:48	6:48		27	Sat
28	Sun	10:15	1.6	11:05	1.0			5:51	0.9	6:49	6:47		28	Sun
29	Mon			12:21	1.4	3:26	0.9	5:02	1.3	6:49	6:45		29	Mon
30	Tue			10:06	1.7	5:38	0.7			6:50	6:44		30	Tue
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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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 11:00 am — 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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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