When to go to Buenos Aires? Due to the southern hemisphere, the seasons are reversed. Our summer corresponds to winter and vice versa. In concrete terms, you make your Christmas presents in a T-shirt! Spring extends from late September to late December, summer to late March, autumn to late June and winter from late June to late September. When to go to Buenos Aires then? You can visit Argentina's capital all year round although from one season to the next, the stay will not have the same flavor. Buenos Aires empties of its inhabitants during the summer holidays (January and February) which migrate to the seaside resorts of Mar del Plata and its surroundings, or Punta del Este in Uruguay, generally crowded at this time of year. It can therefore be very pleasant to visit him at that time, even if the party people will be sorry to see the nightclubs in the capital deserted by students. To enjoy pleasant weather and a busy city, the best time to travel to Buenos Aires is certainly from September to December and during the months of March-April.