The highest day temperature in February 2026 was 68°F. The lowest night temperature was 31°F. The average values for day and night temperatures during February were 59.6°F и 58.7°F respectivly.

The average sea surface temperature in February 2026 for Grand Isle was 62.8°F. The maximum and minimum values were 53.8°F and 68.4°F respectively.

You can expect various weather conditions during February. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in February for Grand Isle is 0.7 in. It makes february the least rainy month of the year.

The average wind speed in February is 12.4 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Isle in February is 5.9 hours.