New Castle Weather in December

December in New Castle brings low temperatures around 9°C (48°F) during the day, dropping to 0°C (32°F) at night, with quite a bit of rainfall expected, averaging around 120 mm (4.7 in) for the month.

Rainfall in New Castle in December

Typically, you can expect about 11 days of rain this month, with 120 mm (4.7 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in New Castle in December

Daytime highs in New Castle in December reach 9°C (48°F), with nights around 0°C (32°F). This month falls in the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights drop to 0°C (32°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in New Castle in December

The area experiences a moderate amount of sunshine, with approximately 140 hours of sunlight expected. This means a decent mix of sun and overcast.

December in New Castle has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.