Megh is a Hindustani classical raga. The meaning of Megh in Sanskrit is 'Cloud'. Hence this raga is mostly sung or played in the Monsoon season. Another raga which describes rain is raga Malhar. So these 2 ragas where merged and a new raga was developed, this raga is raga Megh Malhar. The Carnatic Music equivalent of this raga is Madhyamavati.