Last Update: 246 PM CST Mon Dec 15 2025
For More Weather Information:
19NM SE Grand Isle LA
Marine Zone Forecast
This Afternoon
Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave detail: northeast 2 feet at 3 seconds.
Tonight
Northeast winds 10 to 15 knots, becoming east 5 to 10 knots after midnight. Seas around 2 feet. Wave detail: northeast 2 feet at 3 seconds and east 2 feet at 7 seconds.
Tuesday
East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 7 seconds.
Tuesday Night
East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 6 seconds. A slight chance of showers after midnight.
Wednesday
East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 7 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon.
Wednesday Night
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 7 seconds. A chance of showers. A chance of thunderstorms after midnight.
Thursday
South winds 5 to 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds. A chance of showers and thunderstorms.
Thursday Night
West winds 5 to 10 knots, becoming north 10 to 15 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 8 seconds and northwest 2 feet at 3 seconds. A chance of showers with a slight chance of thunderstorms in the evening.
Friday
Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 3 feet at 3 seconds and southeast 2 feet at 7 seconds.
Friday Night
East winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 3 seconds and southeast 2 feet at 7 seconds.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Winds and seas higher in and near thunderstorms.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaRADAR & SATELLITE IMAGES
