Water Temperature of the Gulf of Mexico Near Plaquemines Parish, LA

Current Water Temperature

68.7°F

Measurement Time: Monday, January 19, 2026, 6:30 AM CST

Temperature Locations

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Local Points of Interest

Southwest Pass; Southwest Point; West Bay; Stake Island

Gulf of Mexico

Station Name: Southwest Pass Entrance W, LA (256)
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Offshore
Plaquemines Parish, LA 70091
Plaquemines County

GPS Coordinates: 28.988, -89.649

Nearby Water Temperatures

Southwest Pass, Venice, LA (15.1 mi)
Barataria Bay, Grand Isle, LA (26.6 mi)
Mississippi River, Pilottown, LA (27 mi)
Lake Borgne, Shell Beach, LA (60.8 mi)
Mississippi River, New Orleans, LA (71.5 mi)
Bayou Gauche, Bayou Gauche, LA (72.2 mi)
Mississippi Sound, Waveland, MS (84.2 mi)
Mississippi Sound, Pass Christian, MS (89.8 mi)
Bay of St. Louis, Bay St. Louis, MS (94.4 mi)
Mississippi Sound, Biloxi, MS (100.5 mi)
Lower Atchafalaya River, Berwick, LA (106.6 mi)
Atchafalaya Bay, Morgan City, LA (106.7 mi)
Biloxy Bay, Biloxi, MS (107.8 mi)
Atchafalaya Bay, Morgan City, LA (107.9 mi)
Mississippi Sound, Pascagoula, MS (111.4 mi)

Weather Near Plaquemines Parish, Louisiana

Current Weather

45.5°F
Sunny
Sunny
40.1°F
45.5°F
50%
N 7.4 mph
10.2 mph
40.1°F
26.7°F
0 in
0%
6 mi
1027 mbar
0.5

Five Day Weather Forecast

Sunny
Mon
H: 56°F
L: 39°F
Sunny
Tue
H: 52°F
L: 49°F
Partly Cloudy
Wed
H: 66°F
L: 53°F
Patchy rain nearby
Thu
H: 66°F
L: 59°F
Patchy rain nearby
Fri
H: 69°F
L: 60°F

Air Quality

AQI: 1 - Good
PM2.5: 7.65 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 3.55 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:09 AM
Sunset: 5:26 PM
Daylight: 10 hrs 34 mins
Moonrise: 7:37 AM
Moon Transit: 12:57 AM
Moonset: 6:24 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
12:27 AM - 2:57 PM

Minor Periods

5:54 PM - 7:24 PM
7:07 AM - 8:37 AM

Action Rating: 5 out of 5

Freeze Warning issued January 18 at 9:18PM CST until January 19 at 9:00AM CST by NWS New Orleans LA

Effective: Sun January 18, 2026, 9:18 PM
Expires: Mon January 19, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 30. * WHERE...Central Plaquemines, Lower Jefferson, Upper Jefferson, and Upper Plaquemines Parishes. * WHEN...Until 9 AM CST Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Monday, January 19, 2026

Weather Forecast

Sunny
56.3°F
39.4°F
49.6°F
52%
0 in
0%
0%
12.3 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 5.37 μg/m3
Carbon Monoxide: 158.81 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 82.4 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:09 AM
Sunset: 5:26 PM
Daylight: 10 hrs 34 mins
Moonrise: 7:37 AM
Moon Transit: 12:57 AM
Moonset: 6:24 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
12:27 AM - 2:57 PM

Minor Periods

5:54 PM - 7:24 PM
7:07 AM - 8:37 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Sunny
51.6°F
48.9°F
50.9°F
61%
0 in
0%
0%
16.6 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 6.14 μg/m3
PM10: 7.08 μg/m3
Carbon Monoxide: 156.61 μg/m3
Nitrogen Dioxide: 2.52 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 90.88 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:09 AM
Sunset: 5:27 PM
Daylight: 10 hrs 35 mins
Moonrise: 8:12 AM
Moon Transit: 1:45 PM
Moonset: 7:24 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
1:15 PM - 3:45 PM

Minor Periods

6:54 PM - 8:24 PM
7:42 AM - 9:12 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Partly Cloudy
66.4°F
52.8°F
60.8°F
73%
0 in
0%
0%
14.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 8.47 μg/m3
PM10: 11.26 μg/m3
Carbon Monoxide: 150.87 μg/m3
Nitrogen Dioxide: 2.68 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 93.84 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:09 AM
Sunset: 5:28 PM
Daylight: 10 hrs 36 mins
Moonrise: 8:44 AM
Moon Transit: 2:30 PM
Moonset: 8:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
2:00 PM - 4:30 PM

Minor Periods

7:54 PM - 9:24 PM
8:14 AM - 9:44 AM

Action Rating: 2 out of 5

Thursday, January 22, 2026

Weather Forecast

Patchy rain nearby
66.1°F
58.8°F
61.9°F
77%
0.03 in
81%
0%
18.3 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 10.72 μg/m3
PM10: 14.44 μg/m3
Carbon Monoxide: 146.76 μg/m3
Nitrogen Dioxide: 2.87 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 88.64 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:10 AM
Sunset: 5:29 PM
Daylight: 10 hrs 37 mins
Moonrise: 9:14 AM
Moon Transit: 12:00 AM
Moonset: 9:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:25 AM - 4:55 AM

Minor Periods

8:53 PM - 10:23 PM
8:44 AM - 10:14 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Patchy rain nearby
68.7°F
59.5°F
64.8°F
80%
0.02 in
70%
0%
16.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.89 μg/m3
PM10: 9.81 μg/m3
Carbon Monoxide: 172 μg/m3
Nitrogen Dioxide: 4.22 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:10 AM
Sunset: 5:30 PM
Daylight: 10 hrs 38 mins
Moonrise: 9:44 AM
Moon Transit: 8:54 AM
Moonset: 10:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
8:24 AM - 10:54 AM

Minor Periods

9:54 PM - 11:24 PM
9:14 AM - 10:44 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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