Average annual temperature is 26.5 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 15.5 °C
Number of sunny days: 78 days
Number of rainy days: 287 days
Look at detailed online map of Serra Guanabara
* Weather data for Serra Guanabara Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.9 | 32.8 | 33.3 | 33.1 | 32.3 | 32.2 | 34.8 | 37.5 | 38.4 | 38.7 | 37.4 | 34.4 |
| Average daytime temperature (°C) | 29.6 | 29.7 | 30.1 | 30.2 | 30.1 | 29.8 | 32.8 | 34.1 | 35.7 | 36.9 | 34.2 | 31.5 |
| Average temperature (°C) | 25.0 | 25.3 | 25.3 | 25.5 | 25.7 | 24.7 | 26.4 | 27.6 | 28.7 | 29.5 | 27.8 | 26.5 |
| Average night temperature (°C) | 22.4 | 22.6 | 22.9 | 22.8 | 23.1 | 21.2 | 21.3 | 22.7 | 23.8 | 24.6 | 23.7 | 23.4 |
| Absolute minimum temperature (°C) | 21.3 | 21.0 | 21.7 | 21.4 | 21.7 | 15.5 | 18.7 | 19.7 | 21.4 | 23.1 | 21.7 | 22.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.1 | 8.3 | 7.4 | 8.2 | 9.1 | 10.1 | 10.8 | 10.5 | 10.3 | 10.4 | 9.9 | 8.3 |
| Precipitation (mm) | 309 | 257 | 337 | 238 | 190 | 83 | 6 | 46 | 47 | 18 | 123 | 226 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 7 | 22 | 19 | 13 | 11 | 5 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 23 | 9 | 12 | 17 | 20 | 25 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Serra Guanabara is at