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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.

Next low tide : 10:57 pm (0.1 ft)
Next high tide : in 8h 51m at 12:40 pm (1.3 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2036

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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	6:45	1.6					4:51	0.3	6:36	7:18		1	Mon
2	Tue	7:41	1.6					5:24	0.3	6:36	7:17		2	Tue
3	Wed	8:31	1.6					5:53	0.4	6:37	7:16		3	Wed
4	Thu	9:17	1.5					6:14	0.5	6:37	7:15		4	Thu
5	Fri	9:59	1.5					6:26	0.7	6:38	7:14		5	Fri
6	Sat	10:41	1.4					6:22	0.8	6:38	7:13		6	Sat
7	Sun	11:26	1.3					6:01	0.9	6:39	7:11		7	Sun
8	Mon	12:33	1.0	12:22	1.1	5:08	0.9	5:18	1.0	6:39	7:10		8	Mon
9	Tue	12:27	1.2			7:12	0.9			6:40	7:09		9	Tue
10	Wed	12:42	1.3			9:29	0.8			6:40	7:08		10	Wed
11	Thu	1:11	1.5			11:23	0.6			6:41	7:07		11	Thu
12	Fri	1:52	1.6					12:39	0.5	6:41	7:05		12	Fri
13	Sat	2:44	1.7					1:40	0.3	6:42	7:04		13	Sat
14	Sun	3:49	1.8					2:36	0.2	6:42	7:03		14	Sun
15	Mon	5:04	1.9					3:29	0.2	6:43	7:02		15	Mon
16	Tue	6:23	1.9					4:21	0.2	6:43	7:01		16	Tue
17	Wed	7:43	1.9					5:09	0.4	6:44	6:59		17	Wed
18	Thu	9:00	1.8					5:51	0.6	6:44	6:58		18	Thu
19	Fri	10:18	1.6					6:20	0.8	6:45	6:57		19	Fri
20	Sat	11:45	1.4	11:20	1.1			6:13	1.0	6:45	6:56		20	Sat
21	Sun			1:55	1.3	5:09	0.9	4:35	1.2	6:46	6:54		21	Sun
22	Mon			11:24	1.6	7:03	0.8			6:46	6:53		22	Mon
23	Tue					8:50	0.7			6:47	6:52		23	Tue
24	Wed	12:00	1.7			10:26	0.6			6:47	6:51		24	Wed
25	Thu	12:42	1.8			11:46	0.5			6:48	6:50		25	Thu
26	Fri	1:29	1.8					12:51	0.5	6:48	6:48		26	Fri
27	Sat	2:21	1.8					1:45	0.5	6:49	6:47		27	Sat
28	Sun	3:23	1.8					2:33	0.5	6:49	6:46		28	Sun
29	Mon	4:37	1.7					3:14	0.6	6:50	6:45		29	Mon
30	Tue	5:58	1.6					3:50	0.6	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 5:48 pm — 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 transitional phase. Tonight's moon is 27% 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 Waxing Crescent (27% 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

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