Glastonbury Weather in December

During December, Glastonbury experiences low daytime temperatures of 10°C (50°F) and cooler nights around 4°C (39°F). As part of the winter season, expect quite a bit of rainfall. Around 79 mm (3.1 in) is typical.

Rainfall in Glastonbury in December

Climate statistics over the past 30 years suggest around 18 days of rain, with 79 mm (3.1 in) average for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Glastonbury in December

Temperatures in Glastonbury in December top out at 10°C (50°F) and drop to 4°C (39°F) overnight. December marks the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Glastonbury in December

The area experiences limited sunny days, amounting to roughly 53 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

December in Glastonbury can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.