Planning for the weather is an important factor for making your trip to Vythiri a success, especially when you’re splurging. The hottest months are usually March and February, with an average temperature of 27°C, while the coldest months are January and December, with an average of 25°C. The rainiest months in Vythiri are July, June, August and September, with each month seeing an average of 591 mm of rainfall.