Other facts from our historical weather data: Which is the warmest month in Réville? August has an average maximum temperature of 20°C (68°F) and is the warmest month of the year. Which is the coldest month in Réville? The coldest month is February with an average maximum temperature of 10°C (50°F). Which is the wettest month in Réville? December tops the wettest month list with 120mm (4.7 in) of rainfall. Which is the driest month in Réville? July is the driest month with 51mm (2 in) of precipitation. Which is the sunniest month in Réville? June is the sunniest month with an average of 219 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.