Weather on September 18 in Rio de Janeiro
Historical weather data for September 18 in Rio de Janeiro, Brazil
Avg High24°C (76°F)
Avg Low18°C (64°F)
Warmest200623°C
Coldest201316°C
Based on 27 years of data from RIO DE JANEIRO
About This Date
September 18th in Rio de Janeiro, Brazil typically brings pleasant fall weather, with average highs around 24°C and lows near 18°C. Over 27 years of records, the warmest September 18th was in 2006 (23°C average), while the coldest was 2013 (16°C) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 19% of September 18th dates historically, with the wettest September 18th recording 2.79" of rain.
Planning for September 18th in Rio de Janeiro? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2023 | -- | 21°C (69°F) | -- |
| 2020 | 34°C (94°F) | -- | 0 mm |
| 2019 | -- | 21°C (70°F) | -- |
| 2018 | -- | 21°C (69°F) | 8 mm |
| 2017 | -- | 21°C (69°F) | -- |
| 2013 | 25°C (77°F) | 8°C (46°F) | 0 mm |
| 2012 | -- | 18°C (64°F) | -- |
| 2011 | 22°C (71°F) | 13°C (55°F) | -- |
| 2010 | 28°C (83°F) | 16°C (60°F) | -- |
| 2009 | -- | 15°C (59°F) | -- |
| 2007 | -- | 14°C (57°F) | -- |
| 2006 | 26°C (79°F) | 21°C (69°F) | 38 mm |
| 2005 | -- | 19°C (66°F) | 5 mm |
| 2004 | -- | 20°C (68°F) | -- |
| 2003 | 23°C (73°F) | 19°C (66°F) | 0 mm |
| 2002 | -- | 19°C (66°F) | -- |
| 2001 | 22°C (72°F) | 14°C (57°F) | -- |
| 2000 | -- | 19°C (66°F) | -- |
| 1999 | 23°C (73°F) | 13°C (55°F) | -- |
| 1986 | -- | 21°C (69°F) | -- |
| 1981 | -- | 19°C (66°F) | 0 mm |
| 1980 | 20°C (68°F) | -- | 38 mm |
| 1979 | 20°C (68°F) | 17°C (63°F) | 71 mm |
| 1978 | -- | 20°C (68°F) | 0 mm |
| 1977 | -- | 21°C (70°F) | 0 mm |
| 1976 | -- | 17°C (63°F) | -- |
| 1974 | -- | 21°C (70°F) | 0 mm |