Bordeaux's climate is characterized by mild winters and warm summers. Winters, from January to March, are cool with temperatures rarely dropping below freezing, but often reaching highs in the mid-teens. Spring arrives in April and May, bringing temperatures into the high teens and twenties, making it a pleasant time of year. Summer months, June to August, are warm to hot, with frequent highs above 30C, while autumn, September to November, sees temperatures gradually cool back down towards winter levels.