ClimaGo › Santiago › Weather in December
Chile
Hot summer season begins with temperatures around 28°C and clear skies perfect for outdoor activities like rooftop dining and cultural festivals, though advance bookings become essential.
Avg High
29°C
Avg Low
14°C
Daily Rain
0.1mm
Rainfall
Very low
✅ December is one of the best months to visit Santiago!
Nestled between mountains, Santiago combines modern architecture, excellent museums, nearby wineries, vibrant neighborhoods and access to Andes adventures.