Indian Monsoon

The advance or entry of monsoon is called onset. In exams connect onset with monsoon arrival.

The backward movement of monsoon is called retreat or withdrawal. In exams connect withdrawal with retreating monsoon.

Western Ghats lift moist winds and cause rainfall. In exams connect Western Ghats with orographic rainfall.

The Bay of Bengal branch can give heavy rainfall in Northeast India. In exams connect the northeast with Bay branch.

Monsoon is very important for India's water availability and agriculture. In exams also connect monsoon with economy.

Rainfed agriculture directly depends on monsoon. In exams connect rainfed farming with monsoon variability.

Before monsoon northwestern India can be hot and dry. In exams remember pre-monsoon heat.

Loo is an extremely hot and dry local wind that blows over the plains of northern and north-western India during the summer season. It is most common in May and June, before the arrival of the monsoon. It is not associated with the rainy season because humidity rises and temperatures fall then. Exam tip: remember loo as a hot, dry local wind of summer.

Monsoon rainfall varies from place to place in India. In exams connect spatial variation with regional difference.

Monsoon rainfall can vary by month and year. In exams remember temporal variation as time variation.

Monsoon rainfall increases water flow in many rivers. In exams connect monsoon rains with river flow.

Monsoon rainfall affects reservoirs groundwater and rivers. In exams connect water resources with monsoon.

Monsoon is linked with economy due to dependence on agriculture and water. In exams understand monsoon through agriculture economy link.

Monsoon winds bring moisture from the sea. In exams connect moisture-laden winds with monsoon rainfall.

Low monsoon rainfall reduces soil moisture and may lower water levels in wells, ponds, and reservoirs. This creates a shortage of irrigation water, slows crop growth, and can reduce yield. A change in sea colour or mountain height is not a usual effect of deficient monsoon rainfall. Exam tip: link weak monsoon rainfall with water scarcity, crop stress, and lower agricultural output.

Indian monsoon is a seasonal wind and rainfall system. In exams write both seasonal winds and rainfall in the definition.

Monsoon strongly affects India's rainfall and seasonal pattern. Therefore Indian climate is called monsoonal.

The defining feature of a monsoon is the seasonal reversal of wind direction. In India, winds generally blow from sea to land in summer and bring rain, while in winter they mainly blow from land to sea. Changes in river flow or mountain position are not features of monsoon. Exam tip: Remember monsoon as the ‘seasonal reversal of winds’.

A large part of India's rainfall comes from the south-west monsoon. It is very important for Indian agriculture.

The south-west monsoon generally enters India in early June. Its first arrival is considered on the Kerala coast.