Water Temperature of Barataria Bay in Grand Isle, LA

Current Water Temperature

71.8°F 22.1°C
Comfortable Ideal for Swimming
71.8°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Pleasant and refreshing. Ideal for recreational swimming, triathlons, and active water recreation without thermal gear.

Measurement Time: Tuesday, November 10, 2026, 7:42 AM CST

Temperature Locations

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Local Points of Interest

Bayou Fifi; Barataria Pass; Grand Isle State Park; Fifi Island; Bay Des Ilettes; Mendicant Island; Gulf of Mexico

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Barataria Bay

Station Name: Grand Isle
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 16 feet

Sensor Depth: -4 feet

Nearest Address:
93 Aquasport Dr
Grand Isle, LA 70358
Jefferson County

GPS Coordinates: 29.263, -89.957

Nearby Water Temperatures

Gulf of Mexico, Plaquemines Parish, LA (26.6 mi)
Southwest Pass, Venice, LA (40.3 mi)
Mississippi River, Pilottown, LA (42.5 mi)
Lake Borgne, Shell Beach, LA (45.2 mi)
Bayou Gauche, Bayou Gauche, LA (45.8 mi)
Mississippi River, New Orleans, LA (47.5 mi)
Mississippi Sound, Waveland, MS (71.7 mi)
Mississippi Sound, Pass Christian, MS (79.8 mi)
Lower Atchafalaya River, Berwick, LA (81.9 mi)
Bay of St. Louis, Bay St. Louis, MS (82.6 mi)
Atchafalaya Bay, Morgan City, LA (84.2 mi)
Atchafalaya Bay, Morgan City, LA (86.3 mi)
Mississippi Sound, Biloxi, MS (93.8 mi)
Biloxy Bay, Biloxi, MS (101.9 mi)
Mississippi Sound, Pascagoula, MS (109.5 mi)

Weather for Grand Isle, Louisiana

Current Weather

67.2°F
Overcast
Conditions: Overcast
Humidity: 46%
Feels Like: 62.4°F
Wind: N 6.9 mph
Wind Gusts: 13.6 mph
Pressure: 30.17 in
Precipitation: 0 in
Cloud Cover: 91%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Overcast
Tue
H: 73°F
L: 67°F
Overcast
Wed
H: 72°F
L: 66°F
Overcast
Thu
H: 76°F
L: 68°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
3 μg/m³
Good
PM10
3 μg/m³
Good
Ozone (O3)
95 μg/m³
Photochemical
NO2
4.2 μg/m³
Nitrogen Dioxide
SO2
1.4 μg/m³
Sulfur Dioxide
CO
143 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 47m daylight
Sunrise 6:20 AM
Solar Noon 11:43 AM
Sunset 5:07 PM
Moon
New • 0%
Moonrise 7:41 AM
Transit 12:49 PM
Moonset 5:54 PM

Best Times for Fishing or Hunting

Major Periods

12:19 PM - 2:49 PM
11:53 PM - 2:23 AM

Minor Periods

7:11 AM - 8:41 AM
5:24 PM - 6:54 PM
Action Rating:
Very Good 4/5
Tuesday, November 10, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 70°F
Average Humidity: 47%
Chance of Rain: 17%
Wind: 9.4 mph
UV Index: 5.1

Astronomical

Sun
10h 47m daylight
Sunrise 6:20 AM
Solar Noon 11:43 AM
Sunset 5:07 PM
Moon
New • 0%
Moonrise 7:41 AM
Transit 12:49 PM
Moonset 5:54 PM

Best Times for Fishing or Hunting

Major Periods

12:19 PM - 2:49 PM
11:53 PM - 2:23 AM

Minor Periods

7:11 AM - 8:41 AM
5:24 PM - 6:54 PM
Action Rating:
Very Good 4/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 69.3°F
Average Humidity: 61%
Chance of Rain: 60%
Wind: 11 mph
UV Index: 4.6

Astronomical

Sun
10h 46m daylight
Sunrise 6:21 AM
Solar Noon 11:43 AM
Sunset 5:07 PM
Moon
New • 2%
Moonrise 8:38 AM
Transit 1:40 PM
Moonset 6:42 PM

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
1:10 PM - 3:40 PM

Minor Periods

8:08 AM - 9:38 AM
6:12 PM - 7:42 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 70.4°F
Average Humidity: 65%
Chance of Rain: 14%
Wind: 16.6 mph
UV Index: 3.6

Astronomical

Sun
10h 45m daylight
Sunrise 6:22 AM
Solar Noon 11:44 AM
Sunset 5:06 PM
Moon
Waxing Crescent • 6%
Moonrise 9:31 AM
Transit 2:32 PM
Moonset 7:34 PM

Best Times for Fishing or Hunting

Major Periods

1:36 AM - 4:06 AM
2:02 PM - 4:32 PM

Minor Periods

9:01 AM - 10:31 AM
7:04 PM - 8:34 PM
Action Rating:
Fair Action 2/5
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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