Climate
The diversity of the physical features results in a corresponding diversity of climate. In the plains, the climate is generally hot. Though the mean maximum temperature is only around 32.20 Celsius, the heat is oppressive in the moisture laden atmosphere of the plains. Humidity is very high and rises to about 90 percent during the south-west monsoon. The annual variation of temperature is small.
The south-west monsoon starts towards the end of May or the beginning of June, heralded by thunder-storms and holds till September when the rain fades out. October brings in the north-east monsoon. Dry weather sets in by the end of December. January and February are the coolest months of the year. March, April and May are generally very hot.
Topography
