Click on a day for an hourly weather forecast
The temperatures in Bihar in December are comfortable with low of 16°C and and high up to 27°C.
As it is almost never rain during December in Bihar the weather is perfect for hanging out outside and exploring all that Bihar has to offer.
Our weather forecast can give you a great sense of what weather to expect in Bihar in December 2025.
If you’re planning to visit Bihar in the near future, we highly recommend that you review the 14 day weather forecast for Bihar before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 25° / 14° | 1 | 31 | 0 | 10 mm | Perfect | Bihar in January |
| February | 29° / 16° | 1 | 28 | 0 | 11 mm | Good | Bihar in February |
| March | 36° / 22° | 1 | 30 | 0 | 9 mm | Ok | Bihar in March |
| April | 41° / 28° | 1 | 29 | 0 | 17 mm | Awful | Bihar in April |
| May | 42° / 30° | 3 | 28 | 0 | 52 mm | Awful | Bihar in May |
| June | 41° / 32° | 5 | 25 | 0 | 133 mm | Awful | Bihar in June |
| July | 36° / 29° | 13 | 18 | 0 | 389 mm | Bad | Bihar in July |
| August | 35° / 28° | 13 | 18 | 0 | 301 mm | Bad | Bihar in August |
| September | 34° / 27° | 11 | 19 | 0 | 273 mm | Bad | Bihar in September |
| October | 33° / 24° | 3 | 28 | 0 | 97 mm | Good | Bihar in October |
| November | 31° / 21° | 0 | 30 | 0 | 3 mm | Good | Bihar in November |
| December | 27° / 16° | 0 | 31 | 0 | 3 mm | Perfect | Bihar in December |