Water Temperature of Barataria Bay in Grand Isle, LA

Current Water Temperature

72.0°F 22.2°C
Comfortable Ideal for Swimming
72.0°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: Friday, November 13, 2026, 8:12 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)

Marine Weather for Barataria Bay in Grand Isle, LA

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
1.2ft 0.4 m
Light Chop Gentle waves and light chop, ideal for water activities.
Wave Period 2.8s
Wave Direction 10° N
Swell Waves
0.4 ft
3.8s • 183° S
Wind Waves / Chop
1.1 ft
2.4s • 10° N
Ocean Current
0.0 mph
90° E
Sea Surface Temp
73.0°F
Equivalent: 22.8°C

High & Low Tide Forecast

Rising (Flood)
Next Tide: High 3:00 PM (+0.6 ft)
0.0 ft (MSL) Thu, Nov 12 6 PM 12 AM 6 AM 12 PM 6 PM 12 AM Fri, Nov 13 Sat, Nov 14 ▼ Low 4:00 AM -1.0 ft ▲ High 3:00 PM +0.6 ft ▼ Low 2:00 AM -1.0 ft NOW
Low Tide Fri, Nov 13
4:00 AM
-1.0 ft (-0.30 m)
High Tide Fri, Nov 13
3:00 PM
+0.6 ft (0.19 m)
Low Tide Sat, Nov 14
2:00 AM
-1.0 ft (-0.29 m)
High Tide Sat, Nov 14
4:00 PM
+0.7 ft (0.20 m)
Open-Meteo Tidal Model (Mean Sea Level MSL datum) • Times in station local timezone.

5-Day Marine Wave Forecast

Today
Nov 13
2.0 ft
3.1s • N
Sat
Nov 14
2.3 ft
3.4s • ENE
Sun
Nov 15
3.2 ft
4.1s • ESE
Mon
Nov 16
5.5 ft
5.2s • E
Tue
Nov 17
6.4 ft
6.2s • E

Weather for Grand Isle, Louisiana

Current Weather

64°F
Sunny
Conditions: Sunny
Humidity: 65%
Feels Like: 58.8°F
Wind: N 13.7 mph
Wind Gusts: 14.8 mph
Pressure: 30.02 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 15.5 mi
UV Index: 1.7

Five-Day Weather Forecast

Mainly Sunny
Fri
H: 69°F
L: 60°F
Overcast
Sat
H: 61°F
L: 57°F
Overcast
Sun
H: 70°F
L: 59°F
Moderate Rain
Mon
H: 70°F
L: 57°F
Light Drizzle
Tue
H: 69°F
L: 59°F

Air Quality

EPA Index 1 • Good

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

PM2.5
2.5 μg/m³
Good
PM10
2.5 μg/m³
Good
Ozone (O3)
64 μg/m³
Photochemical
NO2
5.9 μg/m³
Nitrogen Dioxide
SO2
1.8 μg/m³
Sulfur Dioxide
CO
133 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 43m daylight
Sunrise 6:22 AM
Solar Noon 11:44 AM
Sunset 5:06 PM
Moon
Waxing Crescent • 13%
Moonrise 10:19 AM
Transit 3:22 PM
Moonset 8:29 PM

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:52 PM - 5:22 PM

Minor Periods

9:49 AM - 11:19 AM
7:59 PM - 9:29 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Mainly Sunny
Average Temperature: 66.6°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 23.7 mph
UV Index: 5.2

Air Quality

EPA Index 1 • Good
PM2.5
3.6 μg/m³
Good
PM10
3.9 μg/m³
Good
Ozone (O3)
79.8 μg/m³
Photochemical
NO2
4.6 μg/m³
Nitrogen Dioxide
SO2
2.1 μg/m³
Sulfur Dioxide
CO
132.3 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 43m daylight
Sunrise 6:22 AM
Solar Noon 11:44 AM
Sunset 5:06 PM
Moon
Waxing Crescent • 13%
Moonrise 10:19 AM
Transit 3:22 PM
Moonset 8:29 PM

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:52 PM - 5:22 PM

Minor Periods

9:49 AM - 11:19 AM
7:59 PM - 9:29 PM
Action Rating:
Good Action 3/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 59°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 24.3 mph
UV Index: 5.1

Air Quality

EPA Index 1 • Good
PM2.5
4.7 μg/m³
Good
PM10
5.6 μg/m³
Good
Ozone (O3)
83.5 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
123.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 42m daylight
Sunrise 6:23 AM
Solar Noon 11:44 AM
Sunset 5:05 PM
Moon
Waxing Crescent • 21%
Moonrise 11:01 AM
Transit 4:11 PM
Moonset 9:25 PM

Best Times for Fishing or Hunting

Major Periods

3:17 AM - 5:47 AM
3:41 PM - 6:11 PM

Minor Periods

10:31 AM - 12:01 PM
8:55 PM - 10:25 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 64.2°F
Average Humidity: 54%
Chance of Rain: 9%
Wind: 17.5 mph
UV Index: 5.1

Air Quality

EPA Index 1 • Good
PM2.5
5.3 μg/m³
Good
PM10
7.6 μg/m³
Good
Ozone (O3)
88.3 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
126.1 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 41m daylight
Sunrise 6:24 AM
Solar Noon 11:44 AM
Sunset 5:05 PM
Moon
Waxing Crescent • 31%
Moonrise 11:38 AM
Transit 4:57 PM
Moonset 10:22 PM

Best Times for Fishing or Hunting

Major Periods

4:04 AM - 6:34 AM
4:27 PM - 6:57 PM

Minor Periods

11:08 AM - 12:38 PM
9:52 PM - 11:22 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 63.9°F
Average Humidity: 74%
Chance of Rain: 55%
Wind: 28.1 mph
UV Index: 2.9

Air Quality

EPA Index 1 • Good
PM2.5
7 μg/m³
Good
PM10
9.3 μg/m³
Good
Ozone (O3)
86.4 μg/m³
Photochemical
NO2
1 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
140.9 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 40m daylight
Sunrise 6:25 AM
Solar Noon 11:44 AM
Sunset 5:04 PM
Moon
First Quarter • 42%
Moonrise 12:12 PM
Transit 5:42 PM
Moonset 11:18 PM

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
5:12 PM - 7:42 PM

Minor Periods

11:42 AM - 1:12 PM
10:48 PM - 12:18 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 64.6°F
Average Humidity: 82%
Chance of Rain: 40%
Wind: 26 mph
UV Index: 2.4

Air Quality

EPA Index 1 • Good
PM2.5
7.3 μg/m³
Good
PM10
10.6 μg/m³
Good
Ozone (O3)
84.8 μg/m³
Photochemical
NO2
1 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
153.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 38m daylight
Sunrise 6:26 AM
Solar Noon 11:44 AM
Sunset 5:04 PM
Moon
First Quarter • 54%
Moonrise 12:43 PM
Transit 6:25 PM
Moonset 1:08 AM

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
5:55 PM - 8:25 PM

Minor Periods

12:38 AM - 2:08 AM
12:13 PM - 1:43 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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