Hyderabad is fairly warm throughout the year and the monsoon does not have too much of rainfall. Temperatures do however, marginally come down in winter and December nights are quite cool.
Though the climate is suitable for a visit anytime of the year, the best season is between October-February. June to September are monsoon months and the weather is pleasant. The temperature during summers is 42 degrees and in winters it may fall to a minimum of 12 degrees.