Winters in Annemasse are typically cool and variable, with temperatures often below freezing but occasionally rising above 14°C. Spring brings gradual warming, with daytime highs reaching up to 25°C by March and April, while nighttime lows remain chilly. Summers are warm and pleasant, with temperatures consistently ranging from 11°C to 32°C, providing comfortable conditions for outdoor activities. Autumn is mild, with a slow cooling trend that sees temperatures dip back down to around freezing by November. Overall, the region's climate is characterized by moderate temperature fluctuations throughout the year.