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The Climate of Tamil Nadu, India is generally tropical and features fairly hot temperatures over the year except during the monsoon seasons. The city of Chennai lies on the thermal equator , [ 1 ] which means Chennai and Tamil Nadu does not have that much temperature variation.
About 50% to 60% of the rain received by the state of Tamil Nadu is from the Northeast Monsoon. [57] In Southern Asia, the northeastern monsoons take place from October to December when the surface high-pressure system is strongest. [58] The jet stream in this region splits into the southern subtropical jet and the polar jet.
The monsoon can be categorized into two branches based on their spread over the subcontinent: Arabian Sea branch; Bay of Bengal branch; Southwest monsoon clouds over Tamil Nadu. Alternatively, it can be categorized into two segments based on the direction of rain-bearing winds: Southwest (SW) monsoon; Northeast (NE) monsoon [Note 1]
Monsoon rains begin to recede from North India at the beginning of October. South India typically receives more rainfall. North-east monsoon or autumn season, lasting from October to November. In the northwest of India, October and November are usually cloudless. Tamil Nadu receives most of its annual precipitation in the northeast monsoon season.
Agriculture in Tamil Nadu is a gamble on the monsoon. The state has distinct periods of rainfall, which are the advancing monsoon period, South-west monsoon (from June to September) with strong southwest winds, the North-east monsoon (from October to December), with dominant northeast winds, and the Dry season (from January to May).
The villages in Tamil Nadu are heavily dependent on monsoon rains, and thereby are prone to droughts when the monsoons fail. The climate of the state ranges from dry sub-humid to semi-arid. The state has three distinct periods of rainfall: advancing monsoon period, South West monsoon from June to September, with strong southwest winds;
The Gadilam River (sometimes pronounced Kedilam) flows through the Cuddalore and Villupuram districts of Tamil Nadu. [1] It has a small water flow, drainage area and sand deposit and is generally flooded during the monsoon season and raises the water table and feed tanks on its basin. Few famous temples like Thiruvathigai Veerataneshwar temple ...
The lagoon is one of three important wetlands that attracts northeast monsoon rain clouds during the October to December season. The lagoon comprises the following regions: Pulicat Lake (Andhra Pradesh and Tamil Nadu), Marshy/Wetland Land Region (AP), Venadu Reserve Forest (AP), and Pernadu Reserve Forest (AP).