Weather will likely play an important role when you plan your trip to Car Nicobar, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and April with an average temp of 83°F, while the coldest months are January and February with an average of 82°F. The rainiest months in Car Nicobar are May, November, September, and June, with each month seeing an average of 12 inches of rainfall.