Rio de Janeiro Weather in December
In December, Rio de Janeiro averages a high of 31°C (87°F) and a low of 23°C (73°F), based on 22 years of historical weather data from RIO DE JANEIRO.
31°C
Average high
87°F
23°C
Average low
73°F
41°C
Record high
105°F · 1982
11°C
Record low
52°F · 1974
What to Expect in Rio de Janeiro in December
Typical December days in Rio de Janeiro reach 31°C (87°F) during the afternoon and cool to around 23°C (73°F) overnight. On average, measurable rain falls on about 49% of days this month. Over the past 22 years, December temperatures in Rio de Janeiro have ranged from a record high of 41°C (1982) down to a record low of 11°C (1974).
For a day-by-day look or other months, see the full Rio de Janeiro weather history.