Water Temperature of Barataria Bay in Grand Isle, LA

Current Water Temperature

82.2°F

Measurement Time: Wednesday, October 7, 2026, 10:48 PM CDT

Today's Tides

 High: October 7, 9:12 AM, 1.3 ft
Low: October 7, 6:51 PM, 0.7 ft

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

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

80.4°F
Overcast
Conditions: Overcast
Humidity: 76%
Feels Like: 84.2°F
Wind: ENE 13.6 mph
Wind Gusts: 24.4 mph
Pressure: 29.88 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Patchy rain nearby
Wed
H: 81°F
L: 79°F
Patchy rain nearby
Thu
H: 81°F
L: 78°F
Light rain shower
Fri
H: 79°F
L: 72°F
Patchy rain nearby
Sat
H: 78°F
L: 71°F
Sunny
Sun
H: 81°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 128 μg/m3
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:47 AM
Sunset: 6:39 PM
Daylight: 11 hrs 42 mins
Moonrise: 3:55 AM
Moon Transit: 10:29 AM
Moonset: 4:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:59 AM - 12:29 AM

Minor Periods

4:25 PM - 5:55 PM
3:25 AM - 4:55 AM

Action Rating: 2 out of 5

Tropical Storm Watch issued October 7 at 10:21AM CDT by NWS New Orleans LA

Effective: Wed October 7, 2026, 10:21 AM
Expires: Thu October 8, 2026, 12:30 AM

* WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and seas 17 to 22 ft. * WHERE...Barataria Bay, Coastal Waters from Southwest Pass of the Mississippi River to Port Fourchon LA out 20 nm and Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM. * WHEN...Tropical Storm force winds possible from Friday morning until early Saturday morning. Small craft advisory conditions will continue through Friday morning. * IMPACTS...Tropical storm force winds and hazardous seas could capsize or damage vessels and reduce visibility.

Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas.
Wednesday, October 7, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.8°F
Average Humidity: 77%
Chance of Rain: 39%
Wind: 19.9 mph
UV Index: 7.3

Air Quality

AQI: 1 - Good
PM2.5: 6.17 μg/m3
PM10: 7.83 μg/m3
Carbon Monoxide: 126.25 μg/m3
Nitrogen Dioxide: 0.91 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 88.38 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:47 AM
Sunset: 6:39 PM
Daylight: 11 hrs 42 mins
Moonrise: 3:55 AM
Moon Transit: 10:29 AM
Moonset: 4:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:59 AM - 12:29 AM

Minor Periods

4:25 PM - 5:55 PM
3:25 AM - 4:55 AM

Action Rating: 2 out of 5

Thursday, October 8, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.6°F
Average Humidity: 79%
Chance of Rain: 82%
Wind: 28.2 mph
UV Index: 6.5

Air Quality

AQI: 1 - Good
PM2.5: 4.15 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 125.46 μg/m3
Nitrogen Dioxide: 0.89 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 84.67 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:47 AM
Sunset: 6:37 PM
Daylight: 11 hrs 40 mins
Moonrise: 4:56 AM
Moon Transit: 11:14 AM
Moonset: 5:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:44 AM - 1:14 PM

Minor Periods

4:56 PM - 6:26 PM
4:26 AM - 5:56 AM

Action Rating: 3 out of 5

Friday, October 9, 2026

Weather Forecast

Conditions: Light rain shower
Average Temperature: 76.8°F
Average Humidity: 80%
Chance of Rain: 85%
Wind: 40.9 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 2.73 μg/m3
PM10: 4.26 μg/m3
Carbon Monoxide: 106 μg/m3
Nitrogen Dioxide: 0.7 μg/m3
Sulphur Dioxide: 0.11 μg/m3
Ozone: 80.38 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:47 AM
Sunset: 6:36 PM
Daylight: 11 hrs 39 mins
Moonrise: 5:56 AM
Moon Transit: 12:00 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:26 PM - 6:56 PM
5:26 AM - 6:56 AM

Action Rating: 4 out of 5

Saturday, October 10, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 73.6°F
Average Humidity: 81%
Chance of Rain: 66%
Wind: 24.8 mph
UV Index: 6.8

Air Quality

AQI: 1 - Good
PM2.5: 1.3 μg/m3
PM10: 1.6 μg/m3
Carbon Monoxide: 108.17 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 82.21 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:46 AM
Sunset: 6:35 PM
Daylight: 11 hrs 37 mins
Moonrise: 6:56 AM
Moon Transit: 12:44 AM
Moonset: 6:27 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:14 AM - 2:44 PM

Minor Periods

5:57 PM - 7:27 PM
6:26 AM - 7:56 AM

Action Rating: 3 out of 5

Sunday, October 11, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 75.3°F
Average Humidity: 72%
Chance of Rain: 6%
Wind: 12.3 mph
UV Index: 7.6

Air Quality

AQI: 1 - Good
PM2.5: 5.61 μg/m3
PM10: 7.48 μg/m3
Carbon Monoxide: 117.55 μg/m3
Nitrogen Dioxide: 1.93 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 94.58 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:46 AM
Sunset: 6:34 PM
Daylight: 11 hrs 35 mins
Moonrise: 7:55 AM
Moon Transit: 1:29 PM
Moonset: 6:59 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
12:59 AM - 3:29 PM

Minor Periods

6:29 PM - 7:59 PM
7:25 AM - 8:55 AM

Action Rating: 5 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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