Buenos Aires December weather
Buenos Aires, Argentina · December
Summer energy with rain variability; flexible plans work best
December starts summer: warmer days and rising humidity. Midday walking can feel tiring without shade and breaks.
Thunderstorms or short showers can pop up, often later in the day. Keep indoor anchors and travel buffers so you can pivot smoothly.
December averages at a glance
Average low
around 18–20°C
Average high
around 28–30°C
Average precipitation
around 80–130 mm
Precip days
about 7–11 days
What to wear in December in Buenos Aires
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Breathable/quick-dry clothing.
- • Sunscreen/sunglasses (recommended).
- • Compact umbrella (recommended).
- • Optional thin layer for A/C.
- • Comfortable shoes.
Travel tips for visiting Buenos Aires in December
- • Break walks into shorter segments with café stops.
- • After rain, surfaces can be slick—slow down.
- • Plan on sunscreen reapplication during long outdoor days.
December weather in Buenos Aires — FAQ
Q. Is December very rainy?
A. It can be variable—often short storm windows rather than constant rain.
Q. Is December a good time to visit?
A. Great summer atmosphere, but plan around heat and storm variability for comfort.
Explore Buenos Aires
These pages are connected so you can compare conditions and decide for yourself.