Santiago Weather in December
In December, Santiago averages a high of 28°C (83°F) and a low of 12°C (53°F), based on 51 years of historical weather data from QUINTA NORMAL.
28°C
Average high
83°F
12°C
Average low
53°F
37°C
Record high
99°F · 2019
3°C
Record low
38°F · 1991
What to Expect in Santiago in December
Typical December days in Santiago reach 28°C (83°F) during the afternoon and cool to around 12°C (53°F) overnight. On average, measurable rain falls on about 1% of days this month. Over the past 51 years, December temperatures in Santiago have ranged from a record high of 37°C (2019) down to a record low of 3°C (1991).
For a day-by-day look or other months, see the full Santiago weather history.