Cornwall Weather in December

Cornwall in December sees very low daytime temperatures of 0°C (32°F) and nighttime lows of -7°C (19°F). Rainfall is fairly high this month at around 96 mm (3.8 in), so pack a rain jacket to stay dry.

Rainfall in Cornwall in December

You can typically expect 18 days of snow/rain this month, averaging around 96 mm (3.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Cornwall in December

In December, Cornwall gets very low temperatures, with highs of 0°C (32°F). Nights cool to around -7°C (19°F). December marks the winter season. Expect a distinctly cold feel throughout the day, not just overnight. With overnight lows of -7°C (19°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. This month is marked by cold temperatures, so wearing layers is key to staying warm. Don't be caught off-guard by the cold.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July, August and September typically offer the best weather for Cornwall.