Climate Test - 16

In Mumbai it rains in the months of June, July, August and September which coincides with the End of Summer.  From July till September the climate is generally wet, hot and humid.

Hence, option A is the correct answer.

Mumbai is on the windward side,

Humidity is high during summer. Sometimes a bit of shower takes places in summer accompanied by dusty violent winds, which are called 'Kal Baishakhi' by the local people. The period between June to September is the monsoon season in Kolkata. Kolkata experiences heavy rains during the monsoons.

During the period of retreating monsoon, i.e. by the end of October south-west monsoon winds retreat from most of northern India. The low-pressure area lying over Northwest India is transferred to the middle of the Bay of Bengal by the end of October. As a result of these unstable conditions, severe cyclonic storms originate in the Bay of Bengal. These cyclonic storms strike along the eastern coast of India causing wide spread rain in the coastal regions.

Hence, option B is the correct answer.

Retreating monsoon season commences with the beginning of the withdrawal of the south-west monsoon [mid September – November] and lasts till early January. It is a 3-month long process where it starts from the peninsula in October and from the extreme south-eastern tip by December. The south-west monsoons withdraw from the Coromandel coast in mid-December. In Punjab, the south-west monsoons withdraw from there in the second week of September. During this period, the temperature comes down sharply. The sky also becomes clear. The most severe and destructive tropical cyclones are originated in the Indian seas and the Bay of Bengal during the retreating monsoons. It is during the retreating monsoon season in India that the southeastern coast receives a lot of rainfall; tropical cyclones also occur during this time. The state of Tamil Nadu receives almost half of its annual rainfall during this time. This is called the winter monsoon or the northeast monsoons.

Summer,

Kalbaishakhi is a local rain fall and thunder storm which occurs in India and Bangladesh. Kalbaishakhi occurs, with increasing frequency, from March till monsoon establishes over North-East India. Based on event descriptions and the meteorological environments involved, it appears that at least some "nor'westers" are, in fact, progressive derechos.[1] During this time Odisha, West Bengal, Assam, Bihar, Chhattisgarh, Jharkhand, Bangladesh and North-Eastern states of India are affected by violent thunderstorms.