Brazil
Rio de Janeiro is the capital city of the state of Rio de Janeiro in Brazil. It serves as one of the major urban centers of the country, positioned within the Rio de Janeiro region.
The city is the second-most-populous city in Brazil, following São Paulo. As of 2025, it has a population of approximately 13 million people and ranks as the sixth-most-populous city in the Americas.
Warmest: January and February (30°C). Driest: July (7 wet days).
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 30°C | 24°C | 155 mm | 15 |
| February | 30°C | 24°C | 127 mm | 14 |
| March | 29°C | 24°C | 133 mm | 13 |
| April | 27°C | 22°C | 85 mm | 12 |
| May | 26°C | 20°C | 59 mm | 9 |
| June | 25°C | 19°C | 38 mm | 9 |
| July | 25°C | 18°C | 40 mm | 7 |
| August | 25°C | 18°C | 63 mm | 10 |
| September | 26°C | 19°C | 59 mm | 8 |
| October | 27°C | 21°C | 90 mm | 15 |
| November | 27°C | 21°C | 130 mm | 15 |
| December | 29°C | 23°C | 132 mm | 15 |
Long-term monthly averages from Open-Meteo.