There's nothing like an all-inclusive holiday in Nilambur to refresh you, especially when you know what kind of weather to expect. Here's some information to help you choose when to book: 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 26°C. February and January are the driest months, while June and July are the rainiest months.