Average annual temperature is 25.0 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: 13.0 °C
Number of sunny days: 104 days
Number of rainy days: 261 days
Look at detailed online map of Río de Janeiro
* Weather data for Río de Janeiro Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.9 | 31.1 | 36.3 | 38.4 | 35.5 | 38.0 | 33.9 | 33.7 | 32.3 | 32.7 | 29.8 | 31.1 |
| Average daytime temperature (°C) | 26.5 | 26.4 | 30.4 | 32.4 | 32.6 | 34.7 | 31.3 | 31.1 | 30.7 | 29.4 | 26.5 | 25.3 |
| Average temperature (°C) | 21.8 | 21.9 | 24.8 | 26.3 | 27.1 | 29.0 | 26.5 | 26.3 | 26.0 | 25.2 | 23.2 | 21.7 |
| Average night temperature (°C) | 17.8 | 18.1 | 20.1 | 21.0 | 22.0 | 23.9 | 23.0 | 22.7 | 22.5 | 22.0 | 21.1 | 18.9 |
| Absolute minimum temperature (°C) | 13.6 | 15.0 | 17.5 | 18.9 | 18.2 | 21.8 | 21.6 | 21.3 | 20.5 | 17.9 | 16.2 | 13.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 12.9 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.4 | 8.2 | 10.4 | 10.9 | 11.5 | 11.1 | 9.4 | 9.9 | 9.9 | 8.8 | 6.2 | 7.6 |
| Precipitation (mm) | 191 | 400 | 82 | 78 | 28 | 57 | 189 | 210 | 102 | 247 | 457 | 242 |
| Sunny days | 12 | 12 | 12 | 16 | 17 | 15 | 4 | 2 | 1 | 6 | 1 | 6 |
| Rainy days | 19 | 16 | 19 | 14 | 14 | 15 | 27 | 29 | 29 | 25 | 29 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río de Janeiro is at