Buenos Aires transitions from summer to autumn in April. The weather tends to be mild and pleasant.

Daytime temperatures remain warm, so individuals attending congress sessions and sightseeing should consider wearing light layers, including t-shirts, blouses, and short-sleeve tops, for comfort.

While evenings may bring cooler weather, a mid-weight sweater or cardigan should suffice for staying warm during social gatherings and networking events.

A light jacket or coat is recommended, particularly for cooler evenings, to ensure warmth while enjoying the city’s nightlife and cultural offerings.