Viareggio's climate is mild and temperate, with a distinct seasonal variation. Winters are cool, with temperatures ranging from just above freezing in January and February to around 14°C by March, gradually warming up. Spring arrives in April, bringing temperatures that steadily rise into the mid-20s, while summer months of June, July, and August are warm to hot, with temperatures often reaching highs above 30°C. Autumn is a pleasant time, with temperatures dropping back down into the teens by October, before cooling off further in November and December, marking the onset of winter once more.