Boston Weather in December

Boston in December sees low temperatures, with highs around 9°C (48°F) and overnight lows of 3°C (37°F). Around 57 mm (2.2 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.

Rainfall in Boston in December

Typically, you can expect about 17 days of rain this month, with 57 mm (2.2 in) on average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Boston in December

Boston in December gets highs of 9°C (48°F) during the day and drops to 3°C (37°F) at night. Experience the winter season in December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Boston in December

With limited sunshine this month, there are about 57 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

December in Boston 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.