Tamil Nadu Climate & Temperature Information Guide

The climate of the state ranges from dry sub-humid to semi-arid. Tamil Nadu is heavily dependent on monsoon rains, and thereby is prone to droughts when the monsoons fail.the climate of Tamil Nadu is known for its warm and humid summers and moderate summers. Temperatures have known to rise almost as high as 40 ° C. However, the proximity to the sea is beneficial in bringing moisture laden sea breezes into the land during the night, which brings a welcome relief from the oppressive heat of the day. April and May are the hottest months of the year, while the period between November to February is considered to be winter. The period between October to December is considered as the Monsoons. The average annual rainfall of the region ranges from around 25 to 75 inches. This is a perfect time to arrange a tour to Tamil Nadu as the climate remains cool and comfortable and the monsoons add a special touch to the already picturesque locales of Tamil Nadu.

Winter Season in Tamil Nadu :

The cold weather commences early in November and comes to an end in the middle of March.The climate in the cold weather is pleasant. The days are bright and warm and the sun is not too hot.As soon as the sun sets the temperature falls and the heat of the day yields place to a sharp bracing cold.

Summer Season in Tamil Nadu :

The hot weather sets in and lasts until the middle of June. The highest temperature is often registered in May which is the hottest month in the state. The hot winds of the plains blow during April and May with an average velocity of 8–16 km/hour. These hot winds greatly affect human comfort during this season.

Monsoons in Tamil Nadu :

The state has three distinct periods of rainfall: advance rainfall ; the South West monsoon from June to September, with strong southwest winds; and the North East monsoon from October to December, with dominant northeast winds. The dry season from January to May. The normal annual rainfall of the state is about 945 mm (37.2 in) of which 48% is through the North East monsoon,and 32% through the South West monsoon. Since the state is entirely dependent on rains for recharging its water resources, monsoon failures lead to acute water scarcity and severe drought. Tamil Nadu is classified into seven aggro-climatic zones: north-east, north-west, west, southern, high rainfall, high altitude hilly,and Cauvery Delta (the most fertile agricultural zone). The table below shows the maximum and minimum temperatures that the state experiences in the plains and hills. Tamil Nadu has rain during the monsoon season due to the south west trade winds which blow towards the northern hemisphere. Tamil Nadu receives rainfall in the winter season due to north-west trade winds.

Current Weather in Tamil Nadu


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