Planning for the weather is a good way to make your trip to Karaikal relaxing and enjoyable, especially when you're splurging. The hottest months are usually May and June, with an average temperature of 30°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Karaikal are November, October, December and August, with each month seeing an average of 264 mm of rainfall.