Heathrow Weather in December

December in Heathrow brings low temperatures, with highs of 9°C (48°F) and nights dropping to 3°C (37°F). Rainfall is on the higher side this month, averaging around 63 mm (2.5 in), so keep a rain jacket handy.

Rainfall in Heathrow in December

Looking at the last 30 years, the data shows about 16 days with rain, averaging 63 mm (2.5 in) 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 Heathrow in December

December in Heathrow brings typical temperatures with highs around 9°C (48°F) and lows of 3°C (37°F). During December, you'll experience the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Heathrow in December

This month is characterized by fewer sunny days, with about 54 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Wind Speed in Heathrow in December

In December, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

December in Heathrow 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.