Weather on December 18 in Rio de Janeiro
Historical weather data for December 18 in Rio de Janeiro, Brazil
Avg High29°C (85°F)
Avg Low21°C (70°F)
Warmest200228°C
Coldest200018°C
Based on 27 years of data from RIO DE JANEIRO
About This Date
December 18th in Rio de Janeiro, Brazil typically brings warm winter weather, with average highs around 29°C and lows near 21°C. Over 27 years of records, the warmest December 18th was in 2002 (28°C average), while the coldest was 2000 (18°C) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 30% of December 18th dates historically, with the wettest December 18th recording 6.5" of rain.
Planning for December 18th 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 | 31°C (87°F) | -- | 0" |
| 2023 | 34°C (94°F) | -- | 0" |
| 2021 | 31°C (87°F) | -- | 6.5" |
| 2019 | 33°C (91°F) | -- | 0" |
| 2017 | -- | 26°C (78°F) | -- |
| 2016 | -- | 22°C (71°F) | 0.41" |
| 2015 | -- | 24°C (75°F) | -- |
| 2013 | -- | 21°C (70°F) | 0.1" |
| 2011 | 27°C (80°F) | 18°C (65°F) | 0.61" |
| 2010 | -- | 19°C (66°F) | -- |
| 2009 | 29°C (85°F) | -- | 3.4" |
| 2008 | -- | 16°C (61°F) | 1.8" |
| 2007 | 27°C (81°F) | 17°C (62°F) | -- |
| 2005 | 36°C (97°F) | -- | -- |
| 2004 | 34°C (93°F) | -- | 0" |
| 2003 | 25°C (77°F) | 21°C (70°F) | -- |
| 2002 | 32°C (90°F) | 24°C (75°F) | -- |
| 2001 | -- | 23°C (73°F) | -- |
| 2000 | 23°C (74°F) | 13°C (55°F) | 2.9" |
| 1999 | 29°C (84°F) | 16°C (61°F) | -- |
| 1982 | -- | 26°C (79°F) | 0" |
| 1981 | -- | 23°C (73°F) | 0.2" |
| 1980 | -- | 26°C (79°F) | 0" |
| 1979 | 24°C (75°F) | 22°C (72°F) | 0" |
| 1978 | -- | 21°C (70°F) | -- |
| 1977 | -- | 22°C (72°F) | 0" |
| 1975 | -- | 23°C (73°F) | -- |