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Weather in Argentina is extremely varied and is best sub-divided into four broad climate regions: east central Argentina (also known as the Pampas), western Argentina, the northeastern interior, and southern Argentina, which includes both the climate-specific Andes as well as Patagonia. It's quite exceptional that expats living in Argentina can experience both the freezing gale force winds of Patagonia and the extreme heat of the north in one season.
Argentina has four distinct seasons. Summer typically starts in December, moving into autumn in March, transitioning into winter in June and finally changing into spring in September. While the south is characterised by cold temperatures and howling wind, the north is sub-tropical and receives heavy rainfall.
The weather in Buenos Aires, Argentina's capital and most popular expat destination, is relatively temperate with distinct seasonal changes. High temperatures and high humidity are a normal part of the city's sultry summers. Spring and autumn are pleasant, whereas winter is cooler, but mild. Snow is a rarity in Buenos Aires, though there may be an occasional day where the temperatures plunge toward freezing. Rainfall is heaviest during summer months, but precipitation is present throughout the year.
Expats living in Argentina will find the varied climate makes certain parts of the country more attractive during different times of the year. The Lake District, Mendoza and Córdoba are fantastic in autumn when the leaves begin to change and the crowds begin to thin. Alternatively, Buenos Aires is something special in spring with the jacarandas in bloom and the gloom of winter fading away.
Patagonia and the south are best in summer, whereas the north is most bearable in winter.