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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.

Next low tide : 9:22 pm (0.1 ft)
Next high tide : in 3h 04m at 11:47 am (1.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1996

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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	Wed	8:49	1.2					5:15	0.3	6:15	7:33		1	Wed
2	Thu	9:04	1.3					6:03	0.1	6:14	7:34		2	Thu
3	Fri	9:29	1.5					6:55	0.0	6:14	7:34		3	Fri
4	Sat	10:02	1.6					7:50	-0.1	6:13	7:35		4	Sat
5	Sun	10:40	1.7					8:48	-0.2	6:12	7:36		5	Sun
6	Mon	11:22	1.7					9:49	-0.2	6:11	7:36		6	Mon
7	Tue			12:07	1.7			10:48	-0.1	6:11	7:37		7	Tue
8	Wed			12:52	1.6			11:43	0.0	6:10	7:37		8	Wed
9	Thu			1:35	1.4					6:09	7:38		9	Thu
10	Fri			2:03	1.2	12:28	0.1			6:08	7:39		10	Fri
11	Sat	11:34	0.9			12:56	0.4			6:08	7:39		11	Sat
12	Sun	9:20	0.9			12:51	0.6	4:18	0.6	6:07	7:40		12	Sun
13	Mon	8:30	1.1					4:44	0.4	6:07	7:41		13	Mon
14	Tue	8:19	1.2					5:22	0.2	6:06	7:41		14	Tue
15	Wed	8:31	1.4					6:01	0.1	6:05	7:42		15	Wed
16	Thu	8:53	1.5					6:39	0.0	6:05	7:42		16	Thu
17	Fri	9:21	1.6					7:16	-0.1	6:04	7:43		17	Fri
18	Sat	9:50	1.6					7:53	-0.1	6:04	7:44		18	Sat
19	Sun	10:21	1.6					8:30	-0.1	6:03	7:44		19	Sun
20	Mon	10:52	1.6					9:08	0.0	6:03	7:45		20	Mon
21	Tue	11:23	1.5					9:46	0.0	6:02	7:45		21	Tue
22	Wed	11:54	1.4					10:21	0.1	6:02	7:46		22	Wed
23	Thu			12:22	1.3			10:51	0.2	6:01	7:47		23	Thu
24	Fri			12:39	1.2			11:09	0.3	6:01	7:47		24	Fri
25	Sat			12:15	1.0			11:08	0.4	6:01	7:48		25	Sat
26	Sun	9:39	0.9					10:34	0.5	6:00	7:48		26	Sun
27	Mon	8:10	1.0					5:17	0.5	6:00	7:49		27	Mon
28	Tue	7:43	1.1					4:32	0.3	6:00	7:49		28	Tue
29	Wed	7:44	1.2					4:54	0.1	5:59	7:50		29	Wed
30	Thu	8:01	1.4					5:30	-0.1	5:59	7:50		30	Thu
31	Fri	8:29	1.6					6:13	-0.2	5:59	7:51		31	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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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 4:34 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 spring phase. Tonight's moon is 80% 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 (80% 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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