Average annual temperature is 21.6 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 9.7 °C
Number of sunny days: 109 days
Number of rainy days: 256 days
Look at detailed online map of Barra do Piraí
* Weather data for Barra do Piraí 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) | 32.6 | 33.4 | 33.2 | 29.8 | 27.8 | 27.4 | 29.2 | 32.9 | 35.8 | 34.2 | 38.1 | 34.4 |
| Average daytime temperature (°C) | 28.3 | 30.4 | 29.5 | 25.6 | 24.1 | 23.9 | 23.5 | 25.4 | 29.2 | 28.1 | 30.0 | 29.8 |
| Average temperature (°C) | 23.0 | 24.2 | 23.6 | 20.8 | 19.1 | 18.3 | 18.0 | 19.6 | 22.5 | 22.5 | 24.0 | 24.0 |
| Average night temperature (°C) | 19.8 | 20.8 | 20.2 | 17.6 | 15.6 | 14.4 | 14.2 | 15.3 | 17.4 | 19.1 | 19.6 | 20.1 |
| Absolute minimum temperature (°C) | 15.7 | 19.0 | 18.7 | 13.9 | 10.2 | 11.6 | 9.7 | 12.6 | 14.6 | 16.3 | 13.6 | 17.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.3 | 12.8 | 12.2 | 11.6 | 11.0 | 10.8 | 10.9 | 11.4 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 8.5 | 9.5 | 9.8 | 8.4 | 8.7 | 9.0 | 8.5 | 7.8 | 9.4 | 7.3 | 10.0 | 10.1 |
| Precipitation (mm) | 391 | 255 | 134 | 113 | 31 | 10 | 23 | 69 | 24 | 123 | 138 | 143 |
| Sunny days | 1 | 0 | 2 | 6 | 13 | 18 | 19 | 16 | 20 | 3 | 4 | 7 |
| Rainy days | 30 | 28 | 29 | 24 | 18 | 12 | 12 | 15 | 10 | 28 | 26 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Barra do Piraí is at