The district has a tropical climate with an oppressive hot season in the plains and plenty of rainfalls throughout. The hot season from March to May, is followed by the south-west monsoon from June to September. The months of October and November constitute the post-monsoon or retreating monsoon season, when day temperature increases gradually and the heat is nearly as intense as in summer. The months of December to February form the north – east monsoon. Rain ceases early in January. The district normally gets an annual average rain fall of 3130.33mm.