December in Metairie averages a daily high of 18.6°C with nights around 9.2°C. Expect roughly 8.6 wet days totalling 127.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Metairie is February–April.
Based on NEW ORLEANS AUDUBON, LA US (7.8km), 1995–2024. 25 years of December data.