Slidell Weather in December

December in Slidell brings pleasant temperatures, with highs of 18°C (64°F) and nights dropping to 7°C (45°F). Rainfall is on the higher side this month, averaging around 158 mm (6.2 in), so keep a rain jacket handy.

Rainfall in Slidell in December

Typically, you can expect about 12 days of rain this month, with 158 mm (6.2 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Slidell in December

Daytime highs in Slidell in December reach 18°C (64°F), with nights around 7°C (45°F). This month falls in the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Slidell in December

The city usually sees around 157 hours of sunlight, indicating a moderately sunny period.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. October and November typically offer the best weather for Slidell.