| Month | Best Time | Climate | Min. Temp (°C) | Max. Temp (°C) |
|---|---|---|---|---|
| January |  |
 |
8 | 21 |
| February | |
 |
11 | 25 |
| March | |
 |
16 | 31 |
| April | |
21 | 38 | |
| May | |
27 | 43 | |
| June | |
|
28 | 42 |
| July | |
28 | 38 | |
| August | |
|
27 | 37 |
| September | |
|
25 | 36 |
| October | |
|
20 | 35 |
| November | |
|
14 | 29 |
| December | |
|
9 | 23 |
The B.R Hills Wildlife Sanctuary spread over a sprawling area of 540 sq. km offers a mix of climate of Western and Eastern Ghats. The mean temperature of the hill has a huge variation with the minimum being 9°C to 16°C and the maximum reaches around 20°C to 38°C.
The annual rainfall too varies according to place and location. The annual average rainfall recorded at the base is around 600mm whereas this figure goes up to 3000mm when read at the top.
This type of variation in temperature is attributed to the fact that the hills in these forests too varies in their height. It is about 600m tall at the basal plateau region but it stands 1200m high from the basal plateau at some places.
This variation topography leads to a thick vegetation of almost all kinds in the B.R Hills Wildlife Sanctuary.
Though B.R Hills Wildlife Sanctuary enjoys a decent climate all through the year still the time period between November to March is considered to be the best time to visit these forests.
