Castleton Weather in December

December in Castleton brings low temperatures, with daytime highs of 8°C (46°F) and nights around 3°C (37°F). Quite a bit of rainfall is expected, around 76 mm (3 in), so pack an umbrella.

Rainfall in Castleton in December

Historically, approximately 20 days this month are expected to have rain, averaging 76 mm (3 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Castleton in December

December in Castleton brings low temperatures, with highs of 8°C (46°F) and nights around 3°C (37°F). December is part of winter. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Castleton in December

With limited sunshine this month, there are about 52 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

Average water temperature in December

The water sits at 8°C (46°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

December in Castleton has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.