Sussex Weather in December

December in Sussex brings very low temperatures, with highs of 2°C (36°F) and nights dropping to -8°C (18°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Sussex in December

During the wettest month of the year, an umbrella can be your best friend to stay dry. Typically around 13 days of snow/rainfall are expected, averaging 122 mm (4.8 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Sussex in December

December in Sussex sees highs of 2°C (36°F) and lows of -8°C (18°F) overnight. The winter season is characteristic of December. Expect a distinctly cold feel throughout the day, not just overnight. Nights are well below freezing at -8°C (18°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. It's a notably cold month; make sure to wear layers to stay warm. It's wiser to gear up in advance than to be caught off-guard, trembling in the cold.

Sunshine in Sussex in December

The month experiences a moderate amount of sunlight, with 101 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sussex. Our weather planner can help you explore destinations with more pleasant weather conditions.