Tiruvannamalai in December

December at Trichy: 20–30°C at the Rock Fort Temple. Cool enough to climb the 83m rock by day, Margazhi rituals fill the temples at dawn.

December at Coonoor: 8-20°C, dry tea slopes and clear Nilgiri viewpoints. Works well — quieter than Ooty, crisp winter at 1,850m.

December at Chettinad: 18–30°C, cool enough to walk the mansion circuit by day. Peak heritage-stay season in the palatial villages.

December at Chidambaram: 22–30°C in the Nataraja temple town. Margazhi month brings special abhishekam rituals — the sabhas fill up nightly.

December at Kanchipuram: 20–30°C in the silk-and-temple town. Margazhi season brings special temple rituals — early morning darshan is coolest.

December at Tharangambadi: 22–30°C on the Danish colonial coast. Fort Dansborg ramparts cool, beach quiet before the Pongal week crowds.

December at Yercaud: 14-24°C, dry Eastern Ghats hill-station days and clear coffee-estate walks. Works well — budget-friendly weekend window, crowds manageable.

December at Srirangam: 20–30°C on the temple island. Margazhi brings the Vaikunta Ekadasi build-up — the 21-gopuram complex at its liveliest.