Boulogne-sur-Mer Weather in December

December in Boulogne-sur-Mer brings low temperatures around 9°C (48°F) during the day, dropping to 4°C (39°F) at night, with the most rainfall of the year.

Rainfall in Boulogne-sur-Mer in December

Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Typically, you can expect about 17 days of rain this month, with 105 mm (4.1 in) on average. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Boulogne-sur-Mer in December

December in Boulogne-sur-Mer brings low temperatures, with highs of 9°C (48°F) and nights around 4°C (39°F). December is known for being in the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Boulogne-sur-Mer in December

With limited sunshine this month, there are about 55 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

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