Rennes Weather in December

December in Rennes averages 10°C (50°F) during the day and 4°C (39°F) at night. It is the wettest month of the year, with 78 mm (3.1 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Rennes in December

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. Historically, December sees about 17 days of rain, with a monthly average of 78 mm (3.1 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Rennes in December

December in Rennes brings typical temperatures with highs around 10°C (50°F) and lows of 4°C (39°F). This month falls in the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Rennes in December

The area experiences limited sunny days, amounting to roughly 68 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

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