When you’re dreaming of a escape to Thirunankovil, be sure to take into account the year-round temperatures. The hottest months are usually April and May with an average temp of 85°F, while the coldest months are January and February with an average of 78°F. The rainiest months in Thirunankovil are November, October, December, and May, with each month seeing an average of 8 inches of rainfall.