About Thenkasi, Tamil Nadu's Climate & Weather History

Thenkasi is a city of approximately 70,500 people in Tamil Nadu, India. Located in the India Standard Time zone at 9°N latitude.

In 2025, Thenkasi recorded an average annual temperature of 79°F. The hottest temperatures reached 102°F in April; the coolest were 65°F in December. Total precipitation for the year was 63 inches, with the wettest month being October.