Weather on December 21 in Rio de Janeiro
Historical weather data for December 21 in Rio de Janeiro, Brazil
Avg High31°C (88°F)
Avg Low21°C (69°F)
Warmest200231°C
Coldest201318°C
Based on 27 years of data from RIO DE JANEIRO
About This Date
December 21st in Rio de Janeiro, Brazil typically brings warm winter weather, with average highs around 31°C and lows near 21°C. Over 27 years of records, the warmest December 21st was in 2002 (31°C average), while the coldest was 2013 (18°C) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 33% of December 21st dates historically, with the wettest December 21st recording 5.11" of rain.
Planning for December 21st in Rio de Janeiro? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2024 | 37°C (99°F) | 24°C (75°F) | 1.09" |
| 2021 | -- | 22°C (71°F) | 0" |
| 2020 | -- | 26°C (79°F) | 0" |
| 2018 | -- | 27°C (81°F) | -- |
| 2016 | -- | 23°C (73°F) | -- |
| 2015 | 29°C (85°F) | 8°C (47°F) | 1.19" |
| 2014 | -- | 8°C (47°F) | 0.79" |
| 2013 | 27°C (81°F) | 8°C (47°F) | -- |
| 2011 | -- | 18°C (64°F) | 0.79" |
| 2010 | -- | 21°C (69°F) | -- |
| 2009 | 28°C (83°F) | -- | -- |
| 2008 | 27°C (81°F) | 17°C (62°F) | 0" |
| 2007 | -- | 18°C (64°F) | 1.4" |
| 2005 | 37°C (99°F) | 23°C (73°F) | 0.61" |
| 2004 | 33°C (91°F) | -- | -- |
| 2003 | -- | 23°C (73°F) | -- |
| 2002 | 36°C (97°F) | 25°C (77°F) | -- |
| 2001 | 32°C (90°F) | -- | -- |
| 2000 | -- | 22°C (72°F) | -- |
| 1999 | 29°C (84°F) | -- | 0" |
| 1982 | 29°C (84°F) | 24°C (75°F) | 0.05" |
| 1981 | -- | 26°C (79°F) | 0" |
| 1980 | 34°C (93°F) | 25°C (77°F) | 0" |
| 1978 | 27°C (81°F) | 22°C (72°F) | 0" |
| 1977 | -- | 23°C (73°F) | 0.1" |
| 1976 | -- | 23°C (73°F) | 5.11" |
| 1975 | 31°C (88°F) | 22°C (72°F) | -- |