Average annual temperature is 24.8 °C
Absolute maximum temperature: 41.7 °C
Absolute minimum temperature: 5.4 °C
Number of sunny days: 227 days
Number of rainy days: 138 days
Look at detailed online map of Bihar
* Weather data for Bihar India is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.8 | 31.4 | 34.6 | 41.6 | 40.1 | 41.7 | 35.4 | 34.2 | 35.5 | 34.2 | 30.5 | 28.2 |
| Average daytime temperature (°C) | 20.2 | 26.5 | 30.7 | 35.5 | 35.5 | 37.8 | 33.3 | 32.8 | 32.5 | 31.0 | 27.7 | 23.4 |
| Average temperature (°C) | 13.7 | 19.4 | 23.8 | 28.3 | 29.1 | 32.6 | 29.5 | 29.1 | 28.8 | 25.4 | 21.3 | 16.5 |
| Average night temperature (°C) | 9.0 | 13.1 | 17.6 | 21.2 | 23.1 | 27.3 | 26.5 | 26.0 | 25.8 | 20.3 | 15.9 | 11.0 |
| Absolute minimum temperature (°C) | 5.4 | 9.6 | 16.1 | 17.6 | 19.9 | 24.2 | 25.2 | 24.2 | 24.3 | 16.4 | 13.2 | 7.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.2 | 12.0 | 12.8 | 13.5 | 13.8 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.5 | 10.0 | 10.0 | 10.5 | 10.4 | 10.5 | 8.8 | 8.9 | 9.3 | 9.9 | 8.9 | 8.4 |
| Precipitation (mm) | 0 | 0 | 36 | 5 | 52 | 114 | 349 | 271 | 175 | 21 | 8 | 14 |
| Sunny days | 29 | 28 | 20 | 24 | 21 | 17 | 1 | 2 | 5 | 23 | 29 | 28 |
| Rainy days | 2 | 0 | 11 | 6 | 10 | 13 | 30 | 29 | 25 | 8 | 1 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bihar is at