United States · 1991–2020 normal
Grand Isle in
December.
Typical December weather in Grand Isle: 18.3°C by day, 8.1°C at night, 123 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high18.3°C
Typical low8.1°C
Rain123 mm
Wet days7
Comfort score 53 this month (April leads the year at 84). Daylight is calculated as 10 h 17 from latitude 29.24°. Open-water sea temperature is 19.6°C (17 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4326198
- NOAA station
- USC00163433 · GALLIANO
- Station distance
- 39.9 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
From evidence to a booked trip
Know the month.
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