Buenos Aires Weather in December
Argentina · early winter in Northern Hemisphere / early summer in Southern Hemisphere
Buenos Aires sits on the Río de la Plata estuary — one of the world's widest river mouths — which profoundly moderates the city's climate. The Pampero, a sudden cold wind from the southwest, can drop temperatures 20°F in under an hour. Summer (December–February) is hot and humid with averages around 84°F; winter (June–August) mild at 50–55°F. The Sudestada, a wet wind from the southeast, causes flooding in low-lying coastal neighborhoods.
Holiday season. Many cities decorate beautifully. Book ahead for December travel.
Current Weather in Buenos Aires Right Now
56°F
Clear Sky
Feels like 55°F · H 59°F / L 53°F
Is December a Good Time to Visit Buenos Aires?
Buenos Aires has a humid subtropical climate — hot and sticky summers, mild winters, and moderate rainfall year-round. The Pampas winds can create dramatic temperature swings. The city is in the Southern Hemisphere, so seasons are opposite to North America/Europe.
What to Pack for Buenos Aires in December
- ✓Light summer clothes and sunscreen for December–February
- ✓Layers for fall and spring
- ✓Light rain jacket year-round
- ✓Tango-appropriate footwear for nights out