Les Ulis Weather in December

Les Ulis in December sees low temperatures, with highs around 9°C (48°F) and overnight lows of 2°C (36°F). Rainfall is at its peak this month, around 73 mm (2.9 in) on average, so waterproofs are essential.

Rainfall in Les Ulis in December

Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. Climate statistics over the past 30 years suggest around 16 days of rain, with 73 mm (2.9 in) average for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Les Ulis in December

Les Ulis in December gets highs of 9°C (48°F) during the day and drops to 2°C (36°F) at night. December is typically considered a winter month. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Les Ulis in December

This month is characterized by fewer sunny days, with about 58 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

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