Water Temperature of Barataria Bay in Grand Isle, LA

Current Water Temperature

72.7°F

Measurement Time: Tuesday, November 18, 2025, 11:30 PM CST

Today's Tides

Low: November 18, 6:25 AM, 0.04 ft
 High: November 18, 7:51 PM, 1.24 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

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Barataria Bay

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

Elevation Above Sea Level: 16 feet / 5 meters

Sensor Depth: -4.1 feet / -1.2 meters

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

63.1°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 94%
Feels Like: 63.1°F
Wind: SSE 8.1 mph
Wind Gusts: 13.1 mph
Pressure: 30.14 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 71°F
L: 70°F
Partly Cloudy
Wed
H: 70°F
L: 67°F
Fog
Thu
H: 68°F
L: 65°F
Moderate rain
Fri
H: 73°F
L: 70°F
Patchy rain nearby
Sat
H: 76°F
L: 73°F

Air Quality

AQI: 1 - Good
PM2.5: 7.35 μg/m3
PM10: 10.15 μg/m3
Carbon Monoxide: 130.85 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 11:45 AM
Sunset: 5:04 PM
Daylight: 10 hrs 37 mins
Moonrise: 5:01 AM
Moon Transit: 10:29 AM
Moonset: 3:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

3:23 PM - 4:53 PM
4:31 AM - 6:01 AM

Action Rating: 4 out of 5

Dense Fog Advisory issued November 18 at 11:09AM CST until November 19 at 9:00AM CST by NWS New Orleans LA

Effective: Tue November 18, 2025, 11:09 AM
Expires: Tue November 18, 2025, 7:15 PM

* WHAT...Visibility one quarter mile or less in dense fog. Locations near any active or smoldering fires may result in visibilities near zero. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...From midnight tonight to 9 AM CST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.
Tuesday, November 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 69.9°F
Average Humidity: 90%
Chance of Rain: 0%
Wind: 14.5 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 6.65 μg/m3
PM10: 9.23 μg/m3
Carbon Monoxide: 130.77 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 86.72 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 11:45 AM
Sunset: 5:04 PM
Daylight: 10 hrs 37 mins
Moonrise: 5:01 AM
Moon Transit: 10:29 AM
Moonset: 3:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

3:23 PM - 4:53 PM
4:31 AM - 6:01 AM

Action Rating: 4 out of 5

Wednesday, November 19, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 68.7°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 7.67 μg/m3
PM10: 10.48 μg/m3
Carbon Monoxide: 134.93 μg/m3
Nitrogen Dioxide: 2.26 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 85.32 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 11:45 AM
Sunset: 5:03 PM
Daylight: 10 hrs 36 mins
Moonrise: 5:57 AM
Moon Transit: 11:14 AM
Moonset: 4:28 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

3:58 PM - 5:28 PM
5:27 AM - 6:57 AM

Action Rating: 5 out of 5

Thursday, November 20, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 66.3°F
Average Humidity: 97%
Chance of Rain: 0%
Wind: 19.9 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 9.94 μg/m3
PM10: 13.07 μg/m3
Carbon Monoxide: 143.17 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 96.08 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 11:45 AM
Sunset: 5:03 PM
Daylight: 10 hrs 35 mins
Moonrise: 6:54 AM
Moon Transit: 12:02 AM
Moonset: 5:08 PM
Moon Phase: New
Moon Illumination: 2.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:32 AM - 2:02 PM

Minor Periods

4:38 PM - 6:08 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Friday, November 21, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 72.2°F
Average Humidity: 94%
Chance of Rain: 86%
Wind: 20.1 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 9.84 μg/m3
PM10: 13.53 μg/m3
Carbon Monoxide: 131.09 μg/m3
Nitrogen Dioxide: 1.62 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 93.88 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 11:45 AM
Sunset: 5:03 PM
Daylight: 10 hrs 34 mins
Moonrise: 7:51 AM
Moon Transit: 12:52 AM
Moonset: 5:53 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:22 AM - 2:52 PM

Minor Periods

5:23 PM - 6:53 PM
7:21 AM - 8:51 AM

Action Rating: 4 out of 5

Saturday, November 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 74.1°F
Average Humidity: 86%
Chance of Rain: 89%
Wind: 9.8 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 6.81 μg/m3
PM10: 9.45 μg/m3
Carbon Monoxide: 120.54 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 70.08 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 11:46 AM
Sunset: 5:02 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:45 AM
Moon Transit: 1:44 PM
Moonset: 6:44 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
1:14 PM - 3:44 PM

Minor Periods

6:14 PM - 7:44 PM
8:15 AM - 9:45 AM

Action Rating: 3 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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